2016 GMC Sierra TSBs

Regular Production Option Code IO6 or UY4 that defaults to West Virginia instead of Virginia on a manual entry. General Motors engineering is currently working on a solution for this concern.

severe internal engine damage.

severe internal engine damage.

that may have fuel gauge that shows empty and the low fuel level indicator is on. Technician will find Diagnostic Trouble Code P2636 will be set in the Engine Control Module. Technician will need to install (Y) Fuel Tank Fill Vent hose. Technician will need to remove the original fuel balance pump line from the pump tube. Technician can now add a new line from the (Y) to the fuel balance pump line and reprogram the ECM with updated calibrations. If the vehicle returns with the same concern and Diagnostic Trouble Code P2636 set in the Engine Control Module. Technician will need to reprogram the Engine Control Module with the latest calibrations.

loss of power steering assist, steering wheel jerks or kicks back when turning, Service Stabilitrak message with warning chime, engine stall, Instrument Panel Cluster going blank or inoperative, radio/Integrated Center Stack going blank, Heater-Vent-Air Conditioning going blank, hood ajar message and/or dome lamps flash when shifting into reverse, alarm sounds when locking doors or door locks cycling, and or wipers continue to run for a short time after turning off and then stop/park in the incorrect location. Technician may find Diagnostic Trouble Codes U0073, U0078, U0029, U0028, U0415, U0140, U0126, U0121, U0101, U0100, C0544, C0710, U1510, B127B, B2605, B3600, C0800, U0428, U0452, U0131, and P0513 set in the vehicle. Check the body control module ground at the G218 location. The front dash insulator mat may be trapped between the ground eyelet and the body stud. Remove the round nut and eyelet and cut the front dash insulator mat away from the ground stud so it no longer interferes with the ground stud and reinstall the eyelet and ground nut. Technician will also inspect the starter solenoid battery cable for shorting out on the starter heat shield. Technician will need to voltage drop the battery cables. The battery should be tested using the GR8. X183 or X133 should be inspected for any broken/loose/backed out terminals.

number (24262535) tank is no longer on restriction through the General Motors Product Quality Center. Dealer can now order part through the normal Customer Care and Aftersales parts process.

vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. If the catalytic converter was replaced and the Diagnostic Trouble Codes set it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle.

Regular Production Option Code IO6 or UY4 that defaults to West Virginia instead of Virginia on a manual entry. General Motors engineering is currently working on a solution for this concern.

delayed engagement after sitting with the engine off.

or engines during there break in period.

noise with no forward or reverse ranges

Check Engine Light, delayed shifts and/or the transmission stuck in gear.

HAS BEEN PLACED ON RESTRICTION THROUGH GENERAL MOTORS PRODUCT QUALITY CENTER. DEALER WILL NEED TO CALL GENERAL MOTORS PRODUCT QUALITY CENTER FOR FURTHER ASSISTANCE.

A DUAL-PULSE INJECTION STRATEGY IS UTILIZED DURING ENGINE COLD START TO REDUCE THE TIME REQUIRED TO BRING THE CATALYTIC CONVERTER UP TO OPERATING TEMPERATURE. THIS SPLIT INJECTION STRATEGY LASTS FOR ABOUT 60 SECONDS ON COLD START. THIS PROCESS MAY CAUSE THE CUSTOMER TO SEE INCREASED BLACK SMOKE DURING COLD START AND SHOULD BE CONSIDERED NORMAL.

Technicians may find DTC P0751 set or stored in history. This condition may be caused by the Clutch Select Solenoid Valve 2 (359), located in the lower valve body, sticking in its bore resulting in a 4th gear start. Note: This condition can be very intermittent and difficult to duplicate.

ROUTING, THE WIRE HARNESS WILL BE DAMAGED AND HAVE POOR TRANSMISSION PERFORMANCE AND QUALITY SHIFTING AND MALFUNCTION INDICATOR LAMP (MIL) ON. *PE

AND NEED TO REORDER REPLACEMENT PARTS USING SAME PART NUMBERS. *PE

DUE TO INTERNAL DAMAGE, EXTREME CAUTION MUST BE TAKEN FOR COMPONENT DEBRIS VIA BROKEN, BENT OR MISSING INTAKE VALVES. *PE

RESTRICTIONS, BY PRODUCT QUALITY CENTER (PQC). MODEL 2010-16 DURAMAX. *PE

AND OIL TANK AND LINES WOULD BE REPLACED ON DRY SUMP ENGINES WHEN REPAIRING AND/OR REPLACING. MODEL 2014-16 CORVETTE, SILVERADO, SIERRA, 2016 CTS-V, 2015-16 ESCALADE, SUBURBAN, TAHOE, YUKON, YUKON XL. *PE

for causing multiple customer concerns that do not have other diagnostic methods to identify them.

Dealers Only).

lateral driver or passenger seat movement and/or a clunk/click/pop type feeling or noise. Technician will need to install a front seat lateral retainer. Technician will need to remove plastic material from the top side of the guide end of the lateral retainer to enable installation.

TECHNICIAN WILL GAIN ACCESS TO THE ROLLER ROCKERS TO INSPECT THEM. ONLY REPLACE THE ROLLER ROCKER THAT IS MISSING NEEDLE BEARINGS. BE SURE TO CLEAN THE OIL DRAINS TO RETRIEVE THE NEEDLE BEARINGS. EACH ROLLER ROCKER HAS 66 BEARINGS.

front shock electrical connector terminals. Technician will need to slightly bend the end of the J-38125-12A release tool. There is a purple Terminal Position Assurance that will align itself in the release position when the release tool is inserted into the release hole. There is a metal locking tab on the terminal that will need to be pushed in before the terminal will pull out of the connector.

unable to rotate ignition key concern. When the concern is present the steering wheel will need to be rotated in either direction to alleviate the pressure between the steering column lock pin and lock plate. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.

reading on the volt gauge during the first several minutes after a cold start. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.

Communication Interface Modules (VCIM) (GMNA Only)

Vehicle Communication Interface Modules

installed on the vehicle.

tools that include consumable parts (U.S. Only).

programs.

only) for service operations.

warranty claims submission procedures that support Labor Operation 0600014 - Suspected Tampering or Vehicle Modifications.

(WPC), and Parts Return Program information.

rush or flow type noise from the power steering gear. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.

shift, start up clunk, and DTC P16F3 condition

Shifts, Slips, or Flares and information on transmission fast learns

power steering noise or fluid leak from power steering pump, gear or high pressure hose during extreme low temperature conditions.

TRANSMISSION SHAKE AND/OR SHUDDER DURING LIGHT THROTTLE ACCELERATION BETWEEN 48 AND 104 KM/H (30 AND 65 MPH) AT A STEADY STATE.

Option Codes A52, AZ3, or B3F may comment about low treble, or excessive bass from the front door speakers. This is a normal design characteristic for this seat configuration. These vehicles lack a subwoofer.

off every five seconds the Human Machine Interface will need to be replaced.

condition of infotainment system will not return to media after bluetooth call ends

REPAIR VEHICLE THAT MAY HAVE A CONCERN WITH NAVIGATION ICON NOT SHOWING THE CORRECT LOCATION THEN JUMPING TO THE CORRECT LOCATION. THE POSITION INDICATOR MAY SHOW THE VEHICLE TURNING IN THE OPPOSITE DIRECTION OR MAY SHOW THE VEHICLE TRAVELING OFF THE ROAD. TECHNICIAN WILL INSPECT THE HUMAN MACHINE INTERFACE MOUNTING. FOLLOW SERVICE INFORMATION FOR THE CORRECT ORIENTATION OF THE HUMAN MACHINE INTERFACE.

rearview mirrors on a vehicle not originally equipped with them.

emanating from HVAC system.

Center when the interior of the vehicle is hot from a sun load or extended heater operation. The Driver Information Center is designed to dim with high temperature exposure. This is done to protect the Driver Information Center from damage.

flushing services and additives) and proper use of GM simplified maintenance schedules (Canada only).

they inform of DTC and indicator lamps that are set within the vehicles.

feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. The bump clunk issue may be due to fuel movement in the fuel tank when not completely full. The condition is eliminated after completely filling the fuel tank.

catalog for the correct part number.

to be replaced if the brake pedal moves or applies on its own at a full turn.

that may have a "Check Trailer Wiring" or "Service Trailer Brake System" message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.

is considered a fluid leak, and what is considered seepage.

noise originating from the rear of the vehicle.