1998 Pontiac Bonneville TSBs

SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK.

SOME OWNERS MAY COMMENT ON A TRANSMISSION OIL LEAK.

EXPERIENCING EXCESSIVE ENGINE COOLANT CONSUMPTION, OR AN ENGINE COOLANT LEAK NEAR OR UNDER THE THROTTLE BODY AREA OF THE UPPER INTAKE MANIFOLD.

OWNERS OF SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60, 4T60-E OR 4T65-E TRANSAXLES MAY COMMENT ON A GRINDING AND...

SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK.

ENGINE COOLANT CONSUMPTION OR COOLANT LEAK (INSPECT FOR MATERIAL DEGRADATION/REPLACE INTAKE MANIFOLDS) ...

CONDITION REGARDING THE ENGINE INTERMITTENTLY STALLS DURING A CLOSED THROTTLE DECELERATION FROM ABOUT 35 MPH.

COMMENTS THAT THE ENGINE RUNS ROUGH, HAS LACK OF POWER, HAS A KNOCK NOISE, AND/OR THE MIL (MALFUNCTION INDICATOR LIGHT) IS ILLUMINATED.

WIRE HARNESS MAY BE STRETCHED, OR THE PCS MAY NOT BE ORIENTED IN THE SAME POSITION, AFTER INSTALLING A SERVICE REPLACEMENT VALVE BODY ASSEMBLY.

NEW UPPER INTAKE MANIFOLD AND GASKET KITS.

CERTAIN VEHICLES WERE BUILT WITH INCORRECT VEHICLE EMISSION CONTROL LABELS.

PRODUCT EMISSION CAMPAIGN REGARDING VEHICLES WITH AN INCORRECT VEHICLE EMISSION CONTROL LABEL.

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...

UPCOMING PRODUCT SAFETY RECALL FUEL PRESSURE REGULATOR.

COMMENT THAT THE VEHICLE'S COMPASS DISPLAY IS TOO DIM, HAS AN UNEVEN DISPLAY OR NO DISPLAY.

This informational bulletin provides information for dealers/technicians on Procedures to Unlock Delco Radio with...

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock.

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.

INFORMATION ON ERROR CODES ON RADIO DISPLAY THEIR CAUSE AND CORRECTIVE ACTION.

INFORMATION ON SERVICING 4T65-E TRANSAXLE SPACER PLATE AND GASKETS FOR VARIOUS MODELS FROM 1997 THROUGH 2002.

INFORMATION ON SERVICING 4T65E TRANSAXLE SPACER PLATE AND GASKETS.

CONCERNS WITH SLIPS, HARSH UPSHIFT OR GARAGE SHIFTS, LAUNCH SHUDDERS, FLARES, ERRATIC SHIFTS AND INTERMITTENT CONCERNS,...

VEHICLES WITH HYDRA-MATIC TRANSAXLE MAY EXHIBIT VEHICLE SHUDDER WHEN REAPPLYING THROTTLE (GREATER THAN 50%) AFTER STOPPING.

This preliminary bulletin provides a way to aid the technician in diagnosing transmission fluid leaking from the trans...

SOME CUSTOMERS MAY COMMENT THAT THE BLACK PLASTIC HOUSING AROUND THE OUTSIDE REAR VIEW MIRROR TURNS CHALKY OR IS DULL IN COLOR.

SOME CUSTOMERS MAY COMMENT THAT THE FRONT AND / OR REAR DOOR TRIM PANEL WILL COME LOOSE OR SEPARATES FROM THE TOP OF THE...

SOME CUSTOMERS MAY COMMENT THAT THE VEHICLE THFT DETERRENT SYSTME ACTIVATES WHEN UNLOCKING THE DOOR WITH A KEY.

CONCERNS OF DOOR HANDLES ON WHITE PAINTED VEHICLES TRUNING YELLOW.

NEW REAR MAIN SEAL AND SPECIAL TOOL FOR INSTALLATION.

SUBJECT REGARDING LOW POWER / STUMBLE WHEN ACCELERATING IN TURNS OR STRAIGHT LINE.

SUBJECT ON ON-BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS.

REAR COMPARTMENT LID DIFFICULT TO CLOSE.

SOME CUSTOMERS MAY COMMENT THAT THE VEHICLE

INFORMATION ON SPARK PLUG TIP EROSION CALIBRATION PCM REFLASH.

Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules

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

REVISED STEERING WHEEL POSITION SENSOR OR STEERING SHAFT LOWER BEARING REPLACEMENT PROCEDURE AND STEERING WHEEL POSITION SENSOR CENTERING PROCEDURE.

Vehicle Recalls

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

This warranty administration bulletin provides policy information with the field action courtesy transportation policy.

This informational bulletin provides information on wheel bearing P/N 13582664 being received new with visible rust and...

This informational bulletin provides information on wheel bearing P/N 13582664 being received new with visible rust and...

INTERMITTENT CHUGGLE OR FISHBITE ON LIGHT ACCELERATION OR A HIGHWAY SPEEDS WITH NO DIAGNOSTIC TROUBLE CODES (DTCS).