2002 GMC Sierra TSBs

SOME 4.3 LITER ENGINE EQUIPPED VEHICLES MAY EXHIBIT A ROUGH RUNNING CONDITION WITH POSSIBLE DIAGNOSTIC TROUBLE CODE P0300 SET.

SOME CUSTOMERS MAY COMMENT THAT THEIR FUEL GAUGE READS E, EMPTY, AFTER FILLING THE TANK WITH THE ENGINE RUNNING ON THEIR...

THIS IS IN REGARDS TO INSPECTION OF THE TURBO CARGER AFTER AN ENGINE FAILURE.

THIS MESSAGE IS ABOUT INSPECTION OF THE TURBO CHARGER AFTER A CATASTROPHIC ENGINE FAILURE.

SOME CUSTOMERS MAY COMMENT ON HIGHER THAN EXPECTED ENGINE OIL CONSUMPTION.

SOME CUSTOMERS MAY COMMENT ON A MILD TO SEVERE ENGINE PING (COMMONLY REFERRED TO AS SPARK KNOCK) USUALLY WORSE DURING...

SOME CUSTOMERS MAY COMMENT ON A MILD TO SEVERE ENGINE PING (SPARK KNOCK) DURING ACCELERATION AND / OR ILLUMINATED...

INFORMATION ON HIGHER THAN EXPECTED OIL CONSUMPTION.

HIGH ENGINE TEMPERATURE READINGS WHEN DRIVING AT HIGHWAY SPEED WITH THEIR SNOWPLOW IN THE UP POSITION ON THEIR 2500 HD AND 3500 SERIES PICK UP TRUCKS.

SOME OWNERS OF 2500 HD AND 3500 SERIES TRUCKS WITH THE 6600 DURAMAX DIESEL ENGINE MAY EXPERIENCE THE MALFUNCTION...

SOME CUSTOMERS MAY COMMENT THAT THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES...

GENERAL MOTORS HAS ANNOUNCED A RECALL ON CERTAIN VEHICLES EQUIPPED WITH ROOF CLEARANCE LAMPS BUILT AT THE FLINT AND...

INFORMATION ON REPROGRAMMING 2500 HD AND 3500 SERIES TRUCKS WITH THE 6600 DURAMAX DIESEL LB7 ENGINE.

SOME 2500 HD 3500 SERIES TRUCKS WITH THE 6600 DURAMAX LD7 ENGINE MAY EXHIBIT A FUEL PRESSURE SENSOR LEAK AT THE FUNCTION BLOCK.

SERVICE ENGINE SOON LAMP ILLUMINATED, INCORRECT TRANSMISSION SHIFTS, POOR PERFORMANCE OF ENGINE, TRANSMISSION SLIPPING.

This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar...

This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar...

This Preliminary Information communication provides information to the technician about vehicles that will not move in forward or reverse.

This Preliminary Information communication provides information to the technician about vehicles that have a Service...

This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.

This Preliminary Information communication provides information to the technician about vehicles that have not...

GMC/CHEVROLET: ENGINES, WITH EGR SYSTEM, HAS LEAKAGE FROM EGR COOLER ENGINE COOLANT INTO THE COMBUSTION CHAMBER.

GENERAL MOTORS: INFORMATION PROVIDED BY BULLETIN FOR ALL 2012 AND PRIOR GENERAL MOTOR TRUCKS AND PASSENGER VEHICLES...

GM: THE SERVICE ENGINE SOON LIGHT IS ON, THERE IS ALSO A MISFIRE OR ENGINE NOISE.

GENERAL MOTORS CORP: SPECIAL COVERAGE ADJUSTMENT; ANALOG ONSTAR DEACTIVATION.

POSSIBLE ENGINE OIL LEAK DUE TO PCV FREEZE-UP, EQUIPPED WITH THE 4.8, 5.3, 6.0, AND 6.2 V-8 ENGINES.

CHEVROLET\GMC SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

ENGINE SURGE OR STALL AT STOP AND/OR DTC P0742 POSSIBLE TCC APPLIED.

DIESEL ENGINE CYLINDER HEAD GASKET MISSING THICKNESS GRADE MARKINGS.

DIAGNOSTIC INFORMATION ON TURBOCHARGER MALFUNCTION DUE TO LACK OF ENGINE OIL FOR LBZ, LB7, AND LLY DURAMAX DIESEL ENGINE.

DUAL TANKS FUEL GAUGE DEFAULTS TO EMPTY - NEW CALIBRATIONS.

TURBOCHARGER OIL FEED LINE KINKED OR RESTRICTED.

INFORMATION ON LONGER MAIN BEARING CAP BOLTS REQUIRED FOR CERTAIN 2001-2006 LB7, LLY, LBZ DURAMAX DIESEL ENGINES.

GENERATION III V8 ENGINE PISTON REPAIRS.

SERVICE VME - 2006 DURAMAX DIESEL ENGINE FUEL SYSTEM COMPONENTS ARE NOT INTERCHANGEABLE WITH EARLIER YEAR MODEL VEHICLES.

POOR ENGINE PERFORMANCE - MISFIRE, ROUGH IDLE, STALLS, ENGINE CRANKS BUT DOES NOT RUN, SERVICE ENGINE SOON/CHECK ENGINE...

DIAGNOSTIC TROUBLE CODE (DTC) P1172 OR P2636, FUEL GAUGE READS EMPTY, SERVICE ENGINE SOON (SES) LIGHT ON.

FLEXIBLE FUEL (RPO L59) ROUGH IDLE, MISFIRE, MALFUNCTION INDICATOR LAMP DIAGNOSTIC TROUBLE CODE P0300.

DURAMAX DIESEL PILOT TO MAIN INJECTION FUEL KNOCK NOISE.

ENGINE OIL DIPSTICK UNSEATED OR OIL LEAK.

DURAMAX DIESEL ENGINE HARD START, NO START, STALL OF DIAGNOSTIC TROUBLE CODE P0093, P1093.

4L60E, 4L65E REPLACEMENT VALVE BODY GASKETS DOES NOT SEEM TO FIT.

DIAGNOSTIC TROUBLE CODE P0128 OR ENGINE WILL NOT REACH OPERATING TEMPERATURE.

01-05 6.6 LLY LB7 DURAMAX DIESEL ENGINE AIR FILTER USAGE.

OIL LEAK FROM THE PCV VENT TUBE.

ROUGH IDLE, SERVICE ENGINE SOON (SES)LIGHT, UNSTABLE IDLE, HESITATION, SURGE OR STALLING.

STEERING IDLER ARM INSPECTION PROCEDURE.

1999 - 2005 GEN II COLD ENGINE MISFIRE AT IDLE WITH POSSIBLE P0171 AND/OR P0174.

DIESEL OIL LEAK FROM PCV VENT TUBE.

DIESEL ENGINE BALANCE RATES ALL SHOWING ZERO.

ENGINE OVERHEAT ON VEHICLES EQUIPPED WITH RPO VYU SNOWPLOW PREP PACKAGE.

BULLETIN 04-08-64-003, FRONT DOOR POWER WINDOW MOTOR ASSEMBLIES - WARRANTY REPAIR INFORMATION.

OIL LEAK AT COOLER TO ENGINE BLOCK MATING SURFACE.

SERVICE ENGINE SOON (SES) LIGHT, P0087, P0093, P1093, LOW POWER, NO START, HARD START, FUEL IN CRANKCASE.

REVISED DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS.

IDLE INSTABILITY, LOW OR ROUGH IDLE WITH ELECTRONIC THROTTLE CONTROL.

SERVICE ENGINE SOON (SES) LIGHT, P0087, P0093, P1093, LOW POWER, NO START, HARD START, FUEL IN CRANKCASE.

LB7 ENGINE VIBRATION MISS OR RUNS ROUGH NO DIAGNOSTIC TROUBLE CODE.

ENGINE LOW OIL LIGHT ON THE DIC.

ENGINE OVERHEATING. *TT

POWER WINDOW MOTOR NOW AVAILABLE SEPARATELY FROM THE POWER WINDOW REGULATORY ASSEMBLY.

EXCESSIVE SHIFTER AND/OR ENGINE VIBRATION, BEARING GROWL AND/OR RATTLE TYPE NOISE WHILE DEPRESSING OR RELEASING CLUTCH PEDAL.

ENGINE OIL LEAK AT MAIN BERING SIDE BOLT.

ENGINE LOW POWER WILL NOT GO OVER 2300 RPMS.

ALLISON LCT1000 PUMP SEPARATOR PLATE CHANGE DISREGARD ADDITIONAL VALVE.

EXCESSIVE OIL CONSUMPTION.

SERVICE ENGINE SOON LIGHT AND P0300 WHEN TOWING, CRUISING UPHILL OR ON HARD ACCELERATION.

CHECK ENGINE LIGHT WITH A P0300 DUE TO 2-4 CYLINDERS MISFIRING ON THE SAME BANK OF THE ENGINE.

EXHAUST VIBRATION RESONANCE OR MOAN IN VEHICLES WITH GEN III V8 ENGINES.

P0420 AND P0430 DTSC IN THE DETROIT, MICHIGAN AREA WITH GEN III V-8 ENGINES.

6.6 LB7 ENGINE WITH A NO CHARGE CONDITION WITH DIAGNOSTIC TROUBLE CODE P0380 P0621.

ENGINEERING INVESTIGATION - CATALYTIC CONVERTER REPLACEMENT.

GEN III ENGINE COATED PISTON INFORMATION.

GAS ENGINES EXHAUST BUZZ OR RATTLE NOISE.

SERVICE ENGINE SOON LIGHT WITH A P0300 MISFIRE DUE TO MISFIRES MAINLY ON CYLINDER 7.

ENGINE TICK, RATTLE OR KNOCK NOISE AFTER CYLINDER HEAD GASKET REPLACEMENT ON THE 6.0L ENGINE.

THE ENGINE COOLANT TEMPERATURE OR INTAKE AIR TEMPERATURE SENSOR MAY READ -40 DEGREES WHEN MONITORED WITH TECH 2.

WHISTLE NOISE FROM THE THROTTLE BODY AREA ON LIGHT THROTTLE ACCELERATION ON VEHICLES WITH GEN III ENGINES AND ELECTRONIC THROTTLE.

THE SERVICE INFORMATION AND OWNERS MANUAL DO NOT SHOW A SERVICE INTERVAL FOR THE 8.6, 9.5, 9.75, 10.5, AND 11.5 INCH...

6.0L LQ4 VIN U ENGINE RESTRICTION.

REPEAT ENGINE OIL LEAK AT MAIN BEARING SIDE BOLT.

CONTACTING TAC PRIOR TO REPLACEMENT OF AN ENGINE CONTROL MODULE (ECM).

SERVICE ENGINE SOON (SES) LIGHT, P0087, P0093, P1093, LOW POWER, NO START, HARD START, FUEL IN CRANKCASE.

ENGINE MISFIRE DUE TO INJECTOR FRETTING CORROSION.

OIL PAN OR OIL COOLER LINE LEAK ON GEN III V-8 ENGINES EQUIPPED WITH AN OIL COOLER.

BATTERY OR CHARGE INDICATOR LIGHT REMAINS ON FOR UP TO 30 SECONDS AFTER A COLD START AND ENGINE RUNNING.

SOME CUSTOMERS MAY HAVE EXPERIENCE VEHICLE SERVICE ENGINE SOON (SES) LIGHT ILLUMINATION, LOW ENGINE POWER, HARD START,...

HIGHER THAN EXPECTED OIL CONSUMPTION EVEN AFTER THE INTAKE BOLTS WERE REPLACED PER 02-06-01-035.

INACCURATE FUEL GAUGE READINGS AND/OR ENGINE STALL.

INTERMITTENT SERVICE ENGINE SOON (SES) LIGHT COMES ON AND CODE P0700 ALONG WITH DIAGNOSTIC TROUBLE CODE P0742 STORED.

ENGINE COOLANT LEAK AT INTAKE GASKET.

8.1L CHANGES IN HEADS, BOLTS AND GASKET FOR FOR 2004 1/2 ENGINES.

4.3L L35 ENGINE-DIAGNOSTIC TROUBLE CODE P0300 BUT NO MISFIRE CAN FELT.

INFORMATION ON ENGINE TICKING.

LOSS OF POWER, HESITATES ON ACCELERATION ON 4.8, 5.3 AND 6.0 ENGINES COUPLED WITH THE 4L60E OR 4L65E TRANSMISSION.

4.3L L35 ENGINE WIDE OPEN THROTTLE DIAGNOSTIC TROUBLE CODE (DTC) P0335, P0336, P0339.

ROLL-OUT FOR THE GEN III SMALL BLOCK ENGINES WITH IRIDIUM SPARK PLUGS.

6.6L LB7 LLY DIESEL ENGINE WITH ROUGH, UNSTABLE, LOW IDLE SPEED OR STALL.

LOW POWER, WILL NOT GO OVER 2300 RPMS.

ENGINE OVERHEATS ON VEHICLES EQUIPPED WITH RPO VYU SNOWPLOW PREP PACKAGE.

6.6L DIESEL ENGINE ROUGH IDLE, CLATTER, STALL AND/OR DIAGNOSTIC TROUBLE CODE (DTC) P1223.

GEN III ENGINES WITH MAF (MASS AIRFLOW) SENSOR CODE P0101.

INACCURATE FUEL GAUGE READINGS AND/OR ENGINE STALL.

6.6L LB7 LLY DIESEL ENGINE DRIVE BELT CHIRPING ON SHUT DOWN.

6.6L LB7 REPEAT ENGINE OIL LEAK (LEFT SIDE) #2 MAIN BEARING CROSS BOLT.

6.6L LB7 ENGINE - FUEL RAIL PRESSURE REGULATOR HARNESS CONNECTOR SERVICING.

TRANSMISSION OIL LEAK, ABNORMAL KNOCKING NOISE HEARD AT IDLE.

ADVANCE SERVICE INFORMATION - EXHAUST SYSTEM POPPING/SNAPPING NOISE WHEN VEHICLE IS HOT, AT IDLE OR IMMEDIATELY AFTER VEHICLE IS SHUT OFF.

THIS MESSAGE IS IN REGARD TO DURAMAX TURBOCHARGER NOISES OR POSSIBLY A PERFORMANCE OR FUEL ECONOMY COMPLAINT.

DURAMAX DIESEL FUEL IN OIL DIAGNOSTICS.

ALLISON LCT1000 KNOCK NOISE AND POSSIBLE LEAK FROM THE TORQUE CONVERTER AREA.

6.6L LB7 DIESEL ENGINE RECAPPING TOOL FOR FUEL SYSTEM HIGH-PRESSURE SIDE DIAGNOSIS.

6.6L LB7 DURAMAX DIESEL TURBOCHARGER NOISES OR FUEL ECONOMY COMPLAINT.

2004 6.6L DURAMAX LB7 ENGINES WITH EXTENDED CRANK DURING HOT ENGINE RESTART.

ENGINE WHISTLE NOISE.

6.6 LITER DURAMAX DIESEL ENGINE FUEL KNOCK NOISE.

MALFUNCTION INDICATOR LAMP ON WITH A P0300 SET AND A MISFIRE.

LACK OF PASSENGER COMPARTMENT HEAT AND/OR RAISED/ROUGH IDLE AFTER START AND/OR P0128 DIAGNOSTIC TROUBLE CODE (DTC)...

TRANSMISSION OIL LEAK, ABNORMAL KNOCKING NOISE HEARD AT IDLE.

THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE...

EXCESSIVE DURAMAX TURBOCHARGER WHINE NOISE OR POSSIBLY A PERFORMANCE OR A FUEL ECONOMY COMPLAINT.

THE ENGINE DIAGNOSTIC FUEL LEAKS INSIDE OF THE ENGINE.

REVISED FUEL LEAKS INSIDE OF ENGINE DIAGNOSTIC.

ALLISON AUTOMATIC TRANSMISSION VALVE BODY HARDWARE CHANGES.

INFORMATION ON ENGINE TICKING.

ERRATIC IDLE, IDLE SURGE, ROUGH RUN, OR NEAR STALL.

POOR ENGINE PERFORMANCE - MISFIRE, ROUGH IDLE, SERVICE ENGINE SOON/CHECK ENGINE LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) P0300 SET.

AVAILABILITY OF STARTER MOTOR SOLENOID IF DAMAGED DURING SERVICE.

RATTLE NOISE IN ENGINE.

HIGHER THAN EXPECTED OIL CONSUMPTION <8500 GVW.

TRANSMISSION OIL LEAK, ABNORMAL KNOCKING NOISE HEARD AT IDLE.

TRANSMISSION OIL LEAK, ABNORMAL KNOCKING NOISE HEARD AT IDLE.

DIAGNOSTIC INFORMATION FOR TURBO FAILURE DUE TO LACK OF OIL OR REPEAT TURBO FAILURES.

REVISED ENGINE CRANKS BUT DOES NOT RUN DIAGNOSTIC.

RATTLE NOISE IN ENGINE.

MALFUNCTION INDICATOR LAMP ON WITH A P0300 SET AND A MISFIRE.

CAM SENSOR CONNECTOR DOES NOT FIT SENSOR WHEN ENGINE IS REPLACED.

GEN III ENGINE NOISE AFTER HOT SOAK RESTART.

6.6L LB7 ENGINE WITH DIAGNOSTIC TROUBLE CODE (DTC) P0201 AND P0208.

THIS VME MESSAGE APPLIES TO THE VALVE BODY FOR THE ALLISON SERIES 1000 TRANSMISSION REVISED FOR THE 2004 MODEL YEAR TO...

ENGINE COOLANT LOSS WITH NO VISIBLE LEAKS.

MULTIPLE DRIVEABILITY SYMPTOMS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE DUE TO CLOGGED FUEL INJECTORS.

INCREASED ACCELERATOR PEDAL EFFORT, IDLE INSTABILITY.

SERVICE ENGINE SOON INDICATOR ILLUMINATED, TRANSMISSION SLIPS, ENGINE FLARE, DELAYED 2-3 SHIFT, SHIFTS MISSING, NO...

ENGINE KNOCK OR LIFTER NOISE.

SERVICE ENGINE SOON LAMP ILLUMINATED, FALSE DIAGNOSTIC TROUBLE CODES P0181 AND/ OR P0116.

HIGH OIL CONSUMPTION.

REVISED PISTON, CONNECTING ROD, AND BEARING INSTALLATION ILLUSTRATION.

OIL LEAK AT OIL COOLER TO ENGINE BLOCK MATING SURFACE.

CONCERNS WITH LAUNCH SHUDDER / VIBRATION ON ACCELERATION.

SUBJECT REGARDING LUBRICATION OF PROPELLER SHAFT DOUBLE CARDAN CV TYPE U-JOINT CENTERING BALL AND SEAT.*NLM

SUBJECT REGARDING CENTER FLOOR CONSOLE REAR POWER OUTLET REPLACEMENT COVERS.

SUBJECT REGARDING PARTICIPATION IN POWERTRAIN PROGRAM P CODES.

SOME OWNERS OF C1500 SERIES EXTENDED CAB PICKUP MODELS MAY COMMENT ON A VIBRATION/LAUNCH SHUDDER WHEN ACCELERATING FROM A STOP.

INFORMATION PERTAINING TO THE ADDITION OF ANY SNOWPLOW EQUIPMENT ON VEHICLES THAT ARE NOT EQUIPPED WITH THE VYU SNOWPLOW PREP PACKAGE OPTION.

INFORMATION FOR CUSTOMERS THAT REPORTEDLY ARE HAVING DIFFICULTIES PROGRAMMING THEIR HOME LINK TRANSMITTER.

CUSTOMERS MAY COMPLAIN THAT THEIR CENTER CONSOLE LOCK IS NOT OPERATIONAL.

INFORMATION REGARDING CUSTOMER ENHANCEMENTS.

INFORMATION REGARDING VEHICLES WITH TWO REAR POWER OUTLETS.

SOME CUSTOMERS MAY COMMENT THAT THE CENTER CONSOLE LATCH MAY STICK OR WILL NOT OPEN.

THIS BULLETIN IS BEING ISSUED TO INFORM DEALERS THAT EFFECTIVE WITH VEHICLE PRODUCTION IN MAY 1, 2001, CERTAIN VEHICLES...

This informational bulletin provides information on a GM of Canada OnStar cellular communication upgrade.

This informational bulletin provides information on a GM of Canada OnStar cellular communication upgrade.

GM: INFORMATION ON FIXING MULTIPLE SITUATIONS RIGHT THE FIRST TIME.

NEW DESIGN FRONT AXLE SIDE BEARING ADJUSTERS.

HORN INOPERATIVE AT TIMES.

UNWANTED/LOOSE SEAT MOVEMENT.

PING, POP, SNAP OR CLICK NOISE FROM THE PROPELLER SHAFT.

NO START, HARD START, LOSS OF POWER, OR WHITE SMOKE.

ADDITIONAL DIAGNOSTIC INFORMATION DTC P0757.

DURAMAX AIR FILTER. GM TECH LINKS.

REVISED DIAGNOSTIC TROUBLE CODE (DTC) U2104.

REVISED DIAGNOSTIC TROUBLE CODE (DTC) P1172 AND DTC P2636.

REAR AXLE RETAINER BUTTON BREAKAGE.

PROPER ONSTAR CELLULAR ANTENNA MAST USAGE.

REVISED FRONT CASTER AND CAMBER ADJUSTMENT PROCEDURE.

OIL LIFE SYSTEM RESET PROCEDURES-TRUCKS.

4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT.

HIGHWAY SPEED VIBRATION ON SMOOTH SURFACE.

FLUID LEAK FROM FRONT OF VEHICLE ADD TEFLON TAPE TO FRONT AXLE VENT PLUG THREADS.

SUMMARY OF PUBLISHED BULLETINS.

VARIOUS INTERMITTENT DRIVEABILITY CONDITIONS - HESITATION, LACK OF POWER, ETC.

ALLISON LCT1000 CLUNK NOISE ON START IN PARK.

261 TRANSFER CASE DRIVELINES GROWL 1100-1200 RPM.

OIL PAN OR OIL COOLER LINE LEAK.

ALLISON LCT 1000 BUZZ NOISE FEEL ON TCC APPLY.

SPEEDOMETER INOPERATIVE.

PING, POP, SNAP, OR CLICK NOISE FROM THE PROPELLER SHAFT.

ALLISON LCT1000 DIAGNOSTIC TROUBLE CODE P1711, P0872 AFTER COMPLETING REPAIRS.

ADDITIONAL PART NUMBERS FOR BULLETIN 02-01-38-007B.

ALLISON LCT1000 PUMP WHINE NOISE.

REPLACEMENT FLEXPLATE MAY HAVE LARGER BOLT HOLES THAN THE ORIGINAL FLEXPLATE.

DOWNHILL CRUISE CONTROL SURGE.

REAR AXLE LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS.

WHEN USING VOICE RECOGNITION DIALING, SOME NUMBERS OR COMMANDS MAY NOT BE UNDERSTOOD BY THE SYSTEM ESPECIALLY THE NUMBER TWO (2).

PARTS SHOWING NO STOCK OR NOT AVAILABLE.

SPECIAL POLICY ADJUSTMENT - INJECTORS - REPLACE.

A NO CHARGE CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P0380, P0621.

ALLISON LCT1000 OIL PUMP WHINE, BUZZ ON COLD START.

ALLISON LCT1000 DIAGNOSTIC TROUBLE CODES (DTC) P1711, P0872 AFTER COMPLETING REPAIRS.

ALLISON LCT1000 MAY EXPERIENCE A NEUTRAL FEELING WHEN COMING TO A STOP.

ONSTAR SYSTEM IS ATTEMPTING AND/OR COMPLETING PHONE CALLS WHICH THE OPERATOR OF THE VEHICLE DID NOT INITIATE.

LEFT FRONT OF VEHICLE SITS LOW.

D HEIGHT SPECIFICATION MISSING FROM SI.

REVISED DIAGNOSTIC TROUBLE CODE (DTC) P0093 OR DTC P1093 DIAGNOSTIC TABLES.

POOR PERFORMANCE FROM A STOP IN 2WD, AUTO OR 4WD HI.

REVISED REQUIREMENTS FOR INSTALLING THE RUNNING BOARD.

RATTLE/SQUEAK FROM FRONT OF VEHICLE.

SERPENTINE BELT IDENTIFICATION AND DIAGNOSIS FOR MEDIUM DUTY TRUCKS.

DESIGN CHANGE OF REAR OUTPUT SHAFT AND OIL PUMP REPLACEMENT PARTS.

ACCESSORY DRIVE BELT WHINE.

WHINE NOISE FROM FRONT AXLE.

INCREASED ACCELERATOR PEDAL EFFORT.

SCRAPING NOISE FROM REAR OF VEHICLE.

CENTER CONSOLE LID HARD TO OPEN OR CLOSE.

NEEDLE BEARINGS FOUND IN OIL PAN.

SOME VEHICLES EQUIPPED WITH THE ALLISON LCT1000 TRANSMISSION MAY EXPERIENCE A VERY HARSH 2-1 DOWNSHIFT AT A STOP OR ON THROTTLE REAPPLY.

DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE.

DIAGNOSTIC INFORMATION FOR POSSIBLE GEAR INDICATOR (PRNDL) CONCERNS FOR VEHICLES WITH ALLISON LCT1000 AUTOMATIC TRANSMISSION.

SOME CUSTOMERS MAY COMMENT OF HARSH OR DELAYED 2-1 DOWNSHIFT, NEUTRAL FEEL AT A STOP, SHIFT BUSYNESS, DIAGNOSTIC TROUBLE...

SOME CUSTOMERS MAY COMMENT THAT THE TRANSMISSION SLIPS, A SHUDDER, CHUGGLE, OR VIBRATION IS FELT WHEN THE TRANSMISSION...

SOME VEHICLES WILL NOT MOVE WHEN 4-WHEEL DRIVE IS REQUESTED, NOISE, SHUDDER, POOR PERFORMANCE, TRANSMISSION / TRANSFER...

NEW PRODUCT INFORMATION, GRADE BRAKE FEATURE OF ALLISON 1000 SERIES TRANSMISSION.

SUBJECT REGARDING, 2001-2002 CHEVROLET AND GMC C/K PICKUP AND UTILITY MODELS, DIAGNOSTICS FOR POSSIBLE GEAR INDICATOR CONCERNS.

SUBJECT REGARDING, 2001-2002 CHEVROLET AND GMC C/K PICKUP AND UTILITY MODELS, DIAGNOSTICS FOR POSSIBLE GEAR INDICATOR CONCERNS.

INSPECTION OF TIRE AND WHEEL SIZE PRIOR TO DIAGNOSIS OF TRANSMISSION SHIFTS, POOR PERFORMANCE, SPEEDOMETER, CRUISE CONTROL CONCERNS.

SUBJECT REGARDING DIAGNOSTIC TIPS FOR SLIPPING OR MISSING SECOND, THIRD AND/OR FOURTH GEAR.

INFORMATION REGARDING A 1-2 SHIFT SHUTTER, WHICH MAY OCCUR ON LIGHT THROTTLE ACCELERATION, USUALLY WHEN THE VEHICLE IS THOROUGHLY WARMED UP.

INFORMATION REGARDING REVISED TRANSMISSION CALIBRATION TO ADDRESS DRIVELINE GROWL OR PROP SHAFT RING NOISE.

This Preliminary Information communication provides information to the technician about vehicles that may have a...

This Preliminary Information communication provides information to the technician about vehicles that have slip in...

This Preliminary Information communication provides information to the technician about the percentage of UV protection...

BUICK/CADILLAC/CHEVROLET/GMC/OLDSMOBILE AND HUMMER: INFORMATION ON PITMAN ARM SHAFT SEAL SERVICE KIT.

GMC: FLUID LEAK FROM TRANSMISSION OIL COOLER LINES DUE TO CORROSION.

DIAGNOSTIC INFORMATION ON MN8, MT1 SES/MIL ILLUMINATED, DTC P0757, HARSH SHIFT, DELAYED 2-3 SHIFT, 2-3 SHIFT FLARE, NO...

ALLISON LCT1000 HARSH 3-2, 2-1 DOWNSHIFT, AND ABS MAY ACTIVATE.

INSPECTION OF TIRE AND WHEEL SIZE PRIOR TO DIAGNOSIS OF TRANSMISSION SHIFTS, POOR PERFORMANCE, SPEEDOMETER, CRUISE CONTROL CONCERNS.

CLUTCH PEDAL FADE OR CLUTCH WILL NOT DISENGAGE TYPICALLY WHEN TOWING.

ELECTRONIC TRANSFER CASE UNABLE TO COMPLETE SHIFT.

CLUTCH PEDAL SQUEAK. *SC

NO SHIFT, SPEEDOMETER ERRATIC/INOPERATIVE, P0721 C0237 P0500 C0055.

BEARING GROWL OR RATTLE TYPE NOISE WHILE DEPRESSING OR RELEASING THE CLUTCH PEDAL.

TRANSMISSION LEAKS, SLIPS, VEHICLE WILL NOT MOVE.

SLOW OR NO ENGAGEMENT OF AUTOMATIC TRANSMISSION NO START BLANK PRNDL DISPLAY FLASHING PRNDL DIAGNOSTIC TROUBLE CODE...

LEAK FROM THE VENT 4L80E/4L85E TRANSMISSION.

REVISED CLUTCH PRESSURE PLATE ADJUSTMENT.

TRANSMISSION OIL COOLER LINE FITTING CLARIFICATION.

DELAYED TRANSMISSION ENGAGEMENT FROM PARK TO DRIVE OR REVERSE, MALFUNCTION INDICATOR LAMP, RANGE INHIBIT AND BLINKING...

M74 ALLISON LCT1000 PTO GEAR APPLICATIONS.

CLUTCH PEDAL ASSEMBLY SQUEAK NOISE.

TRANSMISSION SLIPS, DELAYED ENGAGEMENT, COLD HESITATION, INTERMITTENT, POOR PERFORMANCE, POWER, SHIFT, DTCS P0701,...

THIS MESSAGE IS ABOUT THE TRANSMISSION NOT SHIFTING INTO GEAR WITH THE CLUTCH PEDAL FULLY DEPRESSED.

THIS MESSAGE IS ABOUT HYDRAULIC FLUID USAGE FOR THE HYDRAULIC CLUTCH SYSTEM.

DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN.

INTERMITTENT NO FORWARD OR REVERSE WITH POSSIBLY EITHER A FLASHING PRNDL DISPLAY OR A RANGE SHIFT INHIBITED MESSAGE.

HIGHWAY SPEED VIBRATION ON K2500HD 4WD VEHICLES EQUIPPED WITH A 4L80E AUTOMATIC TRANSMISSION.

4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE.

DIAGNOSTIC TROUBLE CODE TIPS- LCT1000 TRANSMISSION.

TRANSMISSION- TECH 2 OPERATIONS AIDS, DIAGNOSTIC TROUBLE CODE P0700.

ALLISON LCT1000 WILL NOT SHIFT FROM PARK DUE TO ICE, SNOW OR MUD BUILD-UP ON SHIFT LINKAGE.

ALLISON LCT1000 DARK OR DISCOLORED TRANSMISSION FLUID WITH NO LOSS OF PERFORMANCE.

TRANSMISSION FLUID LEAK FROM FRONT OF TRANSMISSION - TORQUE CONVERTER HOUSING/PUMP AREA.

4L60-E AUTOMATIC TRANSMISSION OIL PUMP FIRST AND SECOND DESIGN IDENTIFICATION.

SOME CUSTOMERS MAY COMMENT THAT THE TRANSMISSION SLIPS, A SHUDDER, CHUGGLE, OR VIBRATION IS FELT WHEN THE TRANSMISSION...

4L80E, 4L85E WHINE NOISE IN FIRST AND SECOND GEAR.

SLIP CONDITION IN 2ND, 3RD OR 4TH DAMAGED 2-4 BAND 3-4 CLUTCH ON THE 4L60E/4L65E AUTOMATIC TRANSMISSION.

NO 2ND, NO 4TH AND NO REVERSE.

ALLISON LCT1000 NO SHIFT, SPEEDOMETER ERRATIC/INOPERATIVE, DIAGNOSTIC TROUBLE CODES (DTCS) P0721, C0237 POSSIBLE ANTI-LOCK BRAKE SYSTEM (ABS) LAMP ON.

6.6L AND MANUAL TRANSMISSION GROWL NOISE WHILE ENGAGING OR DISENGAGING CLUTCH.

TRANSMISSION FLUID LEAKS OUT OF VENT WHEN TRUCK IS STARTED AFTER A COLD SOAK.

6.6L AND MANUAL TRANSMISSION GROWL NOISE WHILE ENGAGING OR DISENGAGING CLUTCH.

TRANSMISSION LEAKS, SLIPS, VEHICLE WILL NOT MOVE.

MALFUNCTION INDICATOR LAMP (MIL) IS ON; THE TRANSMISSION IS STUCK IN THIRD GEAR; AND / OR THE INSTRUMENT CLUSTER IS INOPERATIVE.

INFORMATION ON ALLISON TRANSMISSION SERVICE REPAIRS - FULL SERVICE OF INTERNAL COMPONENTS.

REVISED FUEL INJECTOR BALANCE TEST WITH TECH 2 (AUTOMATIC TRANSMISSION).

REVISED FUEL INJECTOR BALANCE TEST WITH TECH 2 (MANUAL TRANSMISSION).

THE ALLISON LCT1000 TRANSMISSIONS MAY EXPERIENCE A LEAK FROM OIL PUMP AREA.

ALLISON LCT1000 REPEAT TRANSMISSION CONTROL MODULE (TCM) FAILURES WITH POSSIBLE MULTIPLE DIAGNOSTIC TROUBLE CODES (DTCS).

TRANSMISSION SHIFTING IN AND OUT OF 4TH AND 5TH GEAR (HUNTING) WHEN PULLING/CARRYING A LOAD, UNABLE TO MANUALLY SELECT 4TH GEAR.

TRANSMISSION SHIFTING IN AND OUT OF 4TH AND 5TH GEAR (HUNTING) WHEN PULLING / CARRYING A LOAD, UNABLE TO MANUALLY SELECT 4TH GEAR.

ALLISON TRANSMISSION CONTROL MODULE FASTLEARN PROCEDURE UPDATE REQUIRED AFTER TRANSMISSION REPAIRS.

SOME VEHICLES MAY DISPLAY A DIAGNOSTIC TROUBLE CODE OF P0446 (EVAP CANISTER VENT).

SUBJECT IN REGARDS TO FUEL SYSTEM SERVICING ON THE LB7 FUEL INJECTION.

SOME CUSTOMERS HAVE COMMENTED THAT WHEN THEIR FUEL GAUGE READS EMPTY THEY STILL HAVE 18 TO 20 GALLONS OF FUEL REMAINING IN THE TANK.

THIS MESSAGE STATES THAT SOME VEHICLES MAY HAVE INSTALLED A DIESEL FUEL CAP WITH THE D ON THE CAP INSTEAD OF THE...

This informational bulletin provides dealership personnel with information on flexible fuel vehicles (FFVs) and the...

GMC: FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL, CAUSING THE LOW FUEL LIGHT TO ILLUMINATE.

INACCURATE FUEL GAUGE READINGS/REAR FLOAT ARM STUCK.

FUEL GAUGE IS INACCURATE OR READS EMPTY ON DIESEL EQUIPPED CHASSIS CAB WITH DUAL TANKS.

SUPPLEMENT TO BULLETIN 99-06-04-047A FOR FUEL SYSTEM CLEANING.

PROGRAM BULLETIN (CUSTOMER SATISFACTION PROGRAM)-15,000 MILE (24,000 KM) FUEL FILTER CHANGE.

INFORMATION ON THE PROPER AIR FILTER FOR THE DURAMAX DIESEL.

INFORMATION ON THE REVISED FUEL FILTER FOR THE 6.6L DURAMAX DIESEL.

INFORMATION ON SERVICING FUEL INJECTORS TO AVOID CONTAMINATION.

EXHAUST RATTLE NOISE OR VIBRATION.

CRANKS BUT NO START, STALL, INACCURATE/INCORRECT FUEL GAUGE READING, NO FUEL, VEHICLE IS OUT OF FUEL AND FUEL GAUGE READS ABOVE EMPTY.

FUEL PRESSURE REGULATOR CONNECTOR OR TERMINAL REPAIRS.

EXHAUST VIBRATION RESONANCE OR MOAN.

UPDATED PART NUMBER FOR BULLETIN 04-08-49-019 STALL, INACCURATE/INCORRECT FUEL GAUGE READING.

FUEL GAUGE DIVERTS TO EMPTY AFTER IDLING ON INCLINE OR REFUELING.

FUEL GAUGE DIVERTS TO EMPTY AFTER IDLING ON INCLINE.

6.6L LB7 DURAMAX DIESEL DIAGNOSTIC TROUBLE CODE (DTC)S P0201 - P0208.

HARD TO FILL FUEL TANK AT HIGH VOLUME DIESEL PUMPS.

DURAMAX DIESEL FUEL IN OIL DIAGNOSTICS REVISITED.

REVISED FUEL SYSTEM DIAGNOSIS PICKUP.

REVISED FUEL SYSTEM DIAGNOSIS CAB CHASSIS.

REVISED FUEL SYSTEM DIAGNOSIS-HIGH PRESSURE SIDE.

6.6L LB7 DURAMAX DIESEL DIAGNOSTIC TROUBLE CODES (DTCS) P0201-P0208.

6.6L LB7 DURAMAX DIESEL DIAGNOSTIC TROUBLE CODE (DTC)S P0201 - P0208.

EXHAUST MOAN/VIBRATION.

6.6L LB7 DURAMAX DIESEL FUEL PRESSURE REGULATOR REPLACEMENT.

EXHAUST / MUFFLER HEAT SHIELD RATTLE, POPPING NOISE UNDER VEHICLE.

EMISSION LABEL VISIBILITY.

SOME CUSTOMERS MAY COMMENT ABOUT HOOD HINGE WIND NOISE .

SOME CUSTOMERS MAY COMMENT THAT THE MANUAL LOCK LEVER COMES LOOSE FROM THE DOOR TRIM PANEL.

SUBJECT REGARDING AVAILABILITY OF PICKUP BOX REINFORCEMENT KITS FOR TOOLBOX / REAR WINDOW BARRIER / LADDER RACK APPLICATIONS.

SUBJECT REGARDING DOOR MANUAL LOCK LEVER DISENGAGES FROM DOOR TRIM PANEL (REPAIR LOCK LEVER) *JG

SUBJECT REGARDING FRONT AND REAR SIDE DOOR ACCESS DOOR NOISE (REPLACE DOOR CHECK LINK).

INFORMATION REGARDING FRONT AND REAR SIDE ACCESS DOOR NOISE.

SUBJECT ON DOOR MANUAL LOCK LEVER DISENGAGES FROM DOOR TRIM PANEL.

SUBJECT REGARDING NEW DOOR CHECK LINK.

SUBJECT PERTAINING TO CENTER CONSOLE POWER DOOR REPLACEMENT PART NUMBERS *JG

This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.

GM: THE FRONT OR REAR DOOR MAY NOT OPEN FROM THE INSIDE OR OUTSIDE HANDLE, THE DOOR WILL NOT UNLOCK WITH ANY METHOD.

LEFT FRONT AXLE SHAFT DIFFICULT TO REMOVE.

INACCURATE OUTSIDE TEMPERATURE READING ON INSIDE REARVIEW MIRROR.

RATTLE TYPE NOISE COMING FROM THE REAR OF THE CAB DURING BODY TWIST MANEUVERS OR OVER BUMPS.

OUTSIDE REARVIEW MIRROR HOUSINGS COME LOOSE FROM BASE.

DOOR HINGE REPLACEMENT KIT.

4L80E OUTPUT CARRIER THRUST WASHER CHANGES.

WINDRUSH AROUND WINDSHIELD.

TAILGATE CABLE SLACK.

TAILGATE SUPPORT CABLE.

RATTLE TYPE NOISE COMING FROM THE REAR OF THE CAB DURING BODY TWIST MANEUVERS OR OVER BUMPS.

REAR QUARTER GLASS SERVICE REPLACEMENT KITS MAY HAVE DEFORMED SEALING STRIPED WHEN INITIALLY REMOVED FROM THEIR PACKAGING CAUSING DEALERS TO REORDER.

SQUEAK OR CREAK NOISE FROM UNDERBODY OVER BUMPS.

REPLACEMENT TAILGATE CABLES BIND AT SHOULDER BOLT.

REVISED RECOMMENDATIONS REGARDING PAINT FOR STRUCTURAL REACTION INJECTION MOLDING (SRIM) COMPOSITE BOX.

NOISE COMING FROM INSTRUMENT PANEL CLUSTER OR TACHOMETER.

WINDSHIELD REVEAL MOLDING FLUTERING.

REVISED WHEEL DRIVE SHAFT INNER JOINT AND SEAL REPLACEMENT.

CUSTOMERS MAY COMMENT ABOUT A BRAKE SQUEAK OR A NOISE, PARTICULARLY AFTER A COLD SOAK AND ON THE FIRST BRAKE APPLICATION.

ON SOME 3500 CHASSIS CABS, THE FUEL GAUGE WILL READ E, EMPTY, AFTER FILLING THE TANK WITH THE VEHICLE RUNNING.

VEHICLES MAY EXPERIENCE THE BRAKE SYSTEM WARNING LIGHT NOT ILLUMINATING.

This Preliminary Information communication provides information to the technician the steps needed to diagnose and...

This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need...

This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need...

CHEVROLET/GMC/CADILLAC: ANYTIME HYDRAULIC BRAKE PIPES ASSEMBLY NEED REPLACING, PRE-FORMED AND PRE-FLARED BRAKE PIPES...

ABS LIGHT ON, DTC'S C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE.

THE IGNITION DISTRIBUTOR CAP AND ROTOR MAY CORRODE AND CAUSE IGNITION SYSTEM FAILURE.

APPLICATION OF HORN AT HORN PAD INOPERATIVE.

AVAILABILITY OF REAR WHEEL MUD FLAPS TO REDUCE DEBRIS BUILD-UP ON REAR BRAKE CALIPERS AND/OR REAR WHEELS.

LOW BRAKE PEDAL, RED BRAKE LIGHT ON, BRAKE SYSTEM WARNING MESSAGE ON.

ANTI-LOCK BRAKE SYSTEM (ABS) LIGHT ON, DIAGNOSTIC TROUBLE CODES (DTCS) C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE.

REAR PARKING BRAKE SHOE RETAINING SPRING CLIP SERVICE KIT FOR DRUM-IN-HAT (DIH) EQUIPPED VEHICLES.

ANTILOCK BRAKE (ABS) ACTIVATION AT LOW SPEEDS (CLEAN WHEEL SPEED SENSOR MOUNTING SURFACE).

RIGHT REAR INNER BRAKE PAD WEAR.

SOME VEHICLES MAY EXHIBIT A REDUCED BRAKE POWER MESSAGE ON THE DRIVER'S INFORMATION CENTER (DIC).

TRAILER BRAKES APPLIED WHEN HEADLIGHTS / PARK LAMPS ARE ON, BRAKE CONTROLLER ILLUMINATION.

TRAILER BRAKES APPLIED WHEN HEADLIGHTS / PARK LAMPS ARE ON, BRAKE CONTROLLER ILLUMINATION.

TRAILER BRAKES APPLIED WHEN HEADLIGHTS / PARK LAMPS ARE ON, BRAKE CONTROLLER ILLUMINATION.

SOME CUSTOMERS MAY COMMENT THAT THEY HAVE INTERMITTENT OPERATION OF THE REAR TAILLIGHTS, BACKUP LIGHTS AND/OR TRAILER HARNESS.

FRONT SUSPENSION COIL SPRING NOISE.

This informational bulletin provides information on communication with OnStar module after Canadian cellular upgrade.

This informational bulletin provides information on Part Restriction and Ordering Process Information for OnStar Vehicle...

SUPPLEMENT TO 04094 FRONT WHEEL SPEED SENSOR CORROSION.

PRODUCT SAFETY RECALL REGARDING FRONT WHEEL SPEED SENSOR CORROSION.

REPLACEMENT OF CONNECTOR WHEN REPLACING FUEL TANK MODULE/FUEL PUMP MODULE.

4WD INOPERATIVE AND DIAGNOSTIC TROUBLE CODE (DTC) U1026 ATC FUSE OPEN.

INTERIOR LIGHTS INOPERATIVE AFTER BCM REPLACEMENT B2618 DIAGNOSTIC TROUBLE CODE.

RPO C82 NO LONGER INCLUDE THE INSTRUMENT PANEL JUMPER WIRING HARNESS.

AIRFLOW SENSOR PROBLEM.

DIAGNOSTIC INFORMATION FOR INTERMITTENT VEHICLE NO CRANK DEAD BATTERY.

ALLISON LCT 1000 P1781 OR P0802 SETTING IN THE ELECTRONIC CONTROL MODULE.

4.8L 5.3L 6.6L 8.1L P1285 P1286 OR P2133 AFTER REPLACING APP SENSOR.

VEHICLE HAS NO PCM (POWER TRAIN CONTROL MODULE) COMMUNICATION WITH TECH 2.

INFORMATION ON NEW SPARK PLUGS AND GAPPING.

AVOIDING OIL LEVEL SENSOR HARNESS DAMAGE DURING LOWER OIL PAN INSTALLATION.

FUEL LEAK CONCERN FROM THE FUEL RAIL PRESSURE SENSOR.

SOME FOUR-WHEEL DRIVE EXTENDED CAB SHORT BED MODELS MAY EXHIBIT A BUMP/CLUNK ON STOP OR ACCELERATION.

INFORMATION ON 4-WHEEL DRIVE EXTENDED CAB, SHORT BED VEHICLES WITH 4-WHEEL DRIVE EXTENDED CAB, SHORT BED WITH A BUMP OR CLUNK ON STOP OR ACCELERATION.

THIS MESSAGE COVERS TRUCKS WITH FOUR-WHEEL DRIVE EXTENDED CAB SHORT BED WITH A BUMP OR CLUNK ON STOP OR ACCELERATION IN...

SOME EXTENDED CAB SHORT BED VEHICLES WITH FOUR-WHEEL DRIVE MAY EXHIBIT A BUMP OR CLUNK ON STOP OR ACCELERATION FROM A STOP.

SOME VEHICLES EQUIPPED WITH 4-WHEEL DRIVE EXTENDED CAB AND SHORT BED MAY EXPERIENCE A BUMP OR CLUNK ON STOP OR ACCELERATION.

QUADRASTEER INTERMITTENT SERVICE 4-WHEEL STEER MESSAGE.

EXCESSIVE TIRE SPIN SETTING DIAGNOSTIC TROUBLE CODE C0543.

THE NVG 136 ALL WHEEL DRIVE (AWD) TRANSFER CASE AND THE 236 AND 246 NVG SELECTABLE TRANSFER CASES OPERATING IN THE AUTO...

REVISED WHEEL DRIVE SHAFT NUT TORQUE SPECIFICATION.

EXCESSIVE TIRE SPIN SETTING DIAGNOSTIC TROUBLE CODE (DTC) CO542.

SERVICE 4 WHEEL STEER MESSAGE WITH DIAGNOSTIC TROUBLE CODE (DTC) C0455.

REFERENCE GUIDE FOR THE TECHNICIAN TO UPGRADE A VEHICLE FROM FACTORY WHEELS AND TIRES TO 20 INCH WHEELS AND TIRES, WHICH ARE AVAILABLE THROUGH GMSPO.

GEN III REPLACEMENT FLYWHEEL BOLT HOLES LARGER THAN ORIGINAL PART.

SLIPS IN 4-WHEEL DRIVE, NOISE, VIBRATION, LEAKS, HOT ODOR.

TIRE SLOWLY GOES FLAT AND/OR EXCESSIVE WHEEL VIBRATION CAUSED BY BEAD SPLITS (REPLACE WHEELS WITH NEW HEAVY DUTY RIM...

SOME 2500 HD AND 1500 HD CREW CAB MODELS MAY EXHIBIT A STEERING COLUMN RATTLE OR NOISE ESPECIALLY DURING LOW SPEED PARKING LOT TURNING MANEUVERS.

SUBJECT REGARDING STEERING SHAFT CLUNK CONDITION.

CONCERNS THAT CLUNK NOISE CAN BE HEARD COMING FROM UNDER THE HOOD ALSO FELT IN THE STEERING WHEEL.

CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN STEERING WHEEL AND/OR STEERING COLUMN (REPLACE UPPER INTERMEDIATE STEERING SHAFT [I-SHAFT] ASSEMBLY).

LACK OF STEERING ASSIST OR SHUDDER DURING PARKING LOT TYPE MANEUVERS.

CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN STEERING WHEEL.

SUPPLEMENT TO 00-02-35-003F CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN STEERING WHEEL.

VARIOUS STEERING OR SUSPENSION CONCERNS AFTER GM ACCESSORIES 20 INCH TIRE/WHEEL ASSEMBLIES HAVE BEEN INSTALLED.

NOISE FROM STEERING AT LOW SPEEDS.

INTERMEDIATE STEERING SHAFT SERVICE KIT.

REVISED STEERING WHEEL REPLACEMENT PROCEDURE.

INNER TIE ROD RELEASED FOR SERVICE.

CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN THE STEERING WHEEL.

CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN THE STEERING WHEEL.

PICKUP BOX SHEET METAL FRACTURE / DAMAGE WITH AFTERMARKET ACCESSORIES INSTALLED.

BUICK\CADILLAC\CHEVROLET\GMC\HUMMER\OLDSMOBILE\PONTIAC\SAAB\SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

FOG LAMPS INOPERATIVE.

HANDLING CHARACTERISTICS OF VEHICLES WITH 20 INCH WHEEL/TIRE ASSEMBLIES INSTALLED.

INTERMITTENT SERVICE 4WD LIGHT COMES ON WITH DIAGNOSTIC TROUBLE CODE (DTC) C0306 OR C0308 STORED IN TCCM.

MALFUNCTION INDICATOR LIGHT IS ON AND THE VEHICLE HAS A CODE P0706.

INTERMITTENT MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) C0374 OR ERRATIC 4WD/AWD OPERATION.

SIR LIGHT ON STEADY AFTER BULB TEST AND NO DIAGNOSTIC TROUBLE CODES (DTCS).

TRACTION OFF LAMP BEING ILLUMINATED.

ALL FULL SIZE TRUCKS PICK UP BOX SHEET METAL FRACTURE/DAMAGE WITH AFTERMARKET ACCESSORIES INSTALLED.

4L60E/4L65E INTERMITTENT NEUTRAL CONDITION WHILE ACCELERATING FROM A STOP OR WHILE DRIVING.

DAYTIME RUNNING LAMP (DRL) BULB REPLACEMENT.

SUBJECT REGARDING LOSS OF HVAC SYSTEM MODE AND/OR TEMPERATURE CONTROL.

A CONDITION MAY EXIST WHERE THE CUSTOMER CANNOT CONTROL THE HVAC SYSTEM MODES AND / OR THE TEMPERATURE.

LOSS OF HEATING VENTILATION AIR CONDITIONING.

DIAGNOSTIC INFORMATION TO ACCURATELY DIAGNOSE A/C LOW PRESSURE SWITCH USING NEW KENT MOORE SPECIAL TOOL GE-47742.

AIR CONDITIONER (A/C) LOW PRESSURE SWITCH DIAGNOSTIC TOOL.

BLUEHEAT COOLANT HEATER THERMO TOP C.

UNDERHOOD AIR CONDITIONER RATTLE NOISE HEARD ON ACCELERATION OR A SUDDEN LOSS OF AIR CONDITIONER SYSTEM PERFORMANCE.

USE OF SYNTHETIC FRONT AXLE LUBRICANT FOR 4WD VEHICLES SOLD IN COLD WEATHER CLIMATES.

AIR CONDITIONING COMPRESSOR BELT OR TENSIONER JUMPS OR FLUTTERS CAUSING A RATTLE NOISE.

POOR AIR CONDITIONER PERFORMANCE - AIR CONDITIONER WILL NOT BLOW COLD ENOUGH.

CLUNK, BUMP OR SQUAWK WHEN VEHICLE COMES TO A COMPLETE STOP OR ACCELERATION FROM COMPLETE STOP.

EATON LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS, EQUIPPED WITH A LOCKING REAR DIFFERENTIAL RPO G80.

SERVICE VME. SUPPLEMENT TO 00-02-35-003L.

HARD START / NO START OUTSIDE TEMPERATURES BELOW FREEZING.

ALLISON LCT 1000 PRNDL FLASH AND/OR WILL NOT MOVE.

CHEVROLET\GMC SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.

ALLISON LCT1000 PRNDL FLASH AND/OR WILL NOT MOVE.

ALLISON LCT1000 PRNDL FLASH AND/OR WILL NOT MOVE WITH P0721, P0731, P0732, P0733, P0734, P0743, P0746, P0747, P0776,...

QUADRASTEER SERVICE UPDATE.

THE SUBJECT OF THIS SERVICE VOICEMAIL IS FOR THE VEHICLE THEFT DETERRENT, VTD, LEARN PROCEDURE.

SOME CUSTOMERS MAY COMMENT ON THE SERVICE 4WD INDICATOR ILLUMINATING WITH DIAGNOSTIC TROUBLE CODE B2725 SET.

This warranty administration bulletin provides information on the Clarification of Use for Dealer Empowerment Labor...

INFORMATION ON REVISED DESIGN OF INTAKE GASKET AND RELATED BOLTS FOR 2004 MID-YEAR ENHANCEMENT AND PRIOR YEAR SERVICE USAGE.

SNOW PLOW PREP PACKAGE INFORMATION - SERVICE VME.

QUADRASTEER PARTS RESTRICTION.

ALLISON LCT1000 SERVICEABILITY.

AGGRESSIVE THROTTLE RESPONSE.

This technical bulletin provides a procedure to lube the rear leaf springs on vehicles with the condition of a squeak...

SUSPENSION VIBRATION OR FRAME BEAMING AT 40 - 60 MPH.

USE OF CORRECT INSTALLATION PROCEDURE FOR LOOSE HUBCAP ASSEMBLY.

SUSPENSION VIBRATION OR FRAME BEAMING AT 40 -60 MPH.

REPEAT REAR AXLE HUB SEAL LEAK.

REAR LEAF SPRING SLAP OR CLUNK NOISE (REPLACE SPRING INSERTS) *TT UPDATED 10/18/07.

REAR SPRING SLAP OR CLUNK NOISE.

CUSTOMERS MAY COMPLAIN ON CERTAIN MODELS INCLUDING 2002 GMC/CHEV TRUCK C3 AND 2001 CHEVROLET TRUCK C3 THE SECONDARY...

This Preliminary Information communication provides information to the technician about vehicles that may have an issue...

This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States.

INTERMITTENT CONCERN OF THE SERVICE 4 WHEEL STEER MESSAGE BEING DISPLAYED ON THE DIC.

TWEETER SPEAKER RATTLE IN FRONT SIDE DOOR(S), TWEETER SPEAKER FALLS OUT OF POSITION.

MULTIPLE DIAGNOSTIC TROUBLE CODES, INCLUDING ANY OR ALL OF P0708, P0847, P0872, P0875, P1711 OR P1713, PARTIAL OR NO PRINDEL DISPLAY OR NO MOVEMENT.

INFORMATION REGARDING REPLACEMENT OF THE FRONT SEAT BELT RETRACTOR AND BUCKLE USAGE.

GM: THERE ARE SEAT BELT PROBLEMS: DIFFICULTY LATCHING AND UNLATCHING BUCKLE.