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Service bulletins for the 2019 GMC Sierra

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

2009 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIP56532019-06-10. Service bulletin. POWER TRAIN. This Preliminary information communicates that engineering is developing a repair for a chirp noise associated with the front axle assembly.
PIP5646A2019-06-10. Service bulletin. WHEELS; SERVICE BRAKES; POWER TRAIN. This Preliminary information communicates to the dealer technician that some customers may comment the rear wheels locked up at low speeds after a hot soak. Technicians may find DTC's P2724, P2727 or P2729 set. Technician's are advised to replace the TCM to address this concern.
PIP5575B2019-06-10. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer technician that the transmission control module P/N 24289415 is on restriction through the PQC.
PIP5298B2019-06-10. Service bulletin. ELECTRICAL SYSTEM; TRACTION CONTROL SYSTEM; ENGINE. This Preliminary Information communication provides information to the technician for a Service Engine Soon light with a Diagnostic Trouble code P0300 set. There may be a rough running engine associated with this concern. If service information diagnostics have been completed and there is still no trouble found, the technician is to inspect for a possible terminal tension concern on the ignition coil power feed for the cause of the rough running engine and or the P0300. For the Service Engine Soon light or traction control lamp concern check the X2 connector of the under hood fuse block for poor pin retention.
PIP56462019-06-10. Service bulletin. WHEELS; POWER TRAIN. This Preliminary information communicates to the dealer technician that some customers may comment the rear wheels locked up at low speeds after a hot soak. Technicians may find DTC's P2724, P2727 or P2729 set. Technician's are advised to replace the TCM to address this concern.
PIP5650A2019-06-10. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates the possibility of DTC P3075 being set current or history due to low coolant level or air trapped in cooling system.
PIP5604A2019-06-10. Service bulletin. ENGINE. This Preliminary information communicates that 2.7L (RPO L3B) engine are on the exchange program.
PIC63652019-06-10. Service bulletin. EQUIPMENT. This Preliminary information communicates information to dealers advising certain Over the air updates and USB updates have been temporarily suspended.
PIT5655B2019-06-10. Service bulletin. EQUIPMENT. This Preliminary information communicates that a customer may complain of when a Bluetooth call is received the ringing will be continuous for the rest of the drive cycle . It may be noted that this only seems to occur when using an Android device on OS 9.0. This may be caused by a software concern in the phone. The dealer is instructed that the phone manufacturer is working on a software update to resolve the concern.
PIP56502019-06-10. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates the possibility of dtc P3075 being set current or history due to low coolant level or air trapped in cooling system.
PIT56872019-06-10. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates some diagnostic tips to inspect for no/low voltage at the ECM for a customers complaints of a SES MIL, Crank No Start, stalling DTC's: P16A7 and/or P16AF.
PIT56852019-06-10. Service bulletin. FUEL SYSTEM, GASOLINE. This Preliminary information communicates the location that dealers can find information to remove / delete the rear fuel tank from Chassis Cab trucks with RPO N2N dual fuel tanks.
PIP56482019-06-10. Service bulletin. ENGINE. This Preliminary information communicates to the technician the process to inspect the Camshaft Position Actuator Valve Solenoid Bolt internal valve spring for proper operation and travel. It advises the technician to replace the Camshaft Position Actuator Valve Solenoid Bolt if a concern is isolated.
PIT5551D2019-06-10. Service bulletin. FORWARD COLLISION AVOIDANCE. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert".
PIT5638C2019-06-10. Service bulletin. SERVICE BRAKES. This Preliminary information communicates an issues with a Service Brake Assist Message With DTC C05B0 and/or C058E and that engineering released updated calibrations to correct the issue.
PIP56472019-06-10. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. This Preliminary information communicates A vehicle may have a concern of running poor and stalling. No trouble codes may be set referencing this condition. Fuel trims around -20% may be observed on both banks. Engine oil level will be found over full and have a fuel odor. It will be found that the Engine oil is diluted with fuel. Small gas engines (SGE) May only have the engine oil level over full and have a fuel odor. It will be found that the Engine oil is diluted with fuel. This concern is caused by marshalling the vehicle around the lot before it is sold and/or short driver cycles.
PIT3219F2019-06-10. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING:HEADLIGHTS. This Preliminary Information communicates to technicians that the Daytime Running Lamps (DRL's) or the auto headlamps will not shut off when using the daytime running lamp disable switch (Which is part of the headlamp switch), if the vehicles was built for Canada (RPO Z49). These vehicles were built with different software that doesn't allow the DRL's or Auto headlamp to be shut off. Canada law prohibits disabling daytime running lamps (DRL's) or auto headlamps.
PIT5412D2019-06-10. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. This Preliminary Information communication provides information to the technician about vehicles that have either the truck or the snowplow's headlights are flickering or inoperative. There may be a diagnostic trouble code B2575 and or a B2699 set in the body control module. Technician will need to contact the snowplow manufacturer for additional information on their headlight changeover system. Technician is to refer to the latest version of the General Motors up-fitter integration bulletin 116 for additional information these circuits. Technician can find this information at http://www.gmupfitter.com/, under the "Technical Bulletin" Tab and then "Show all bulletins."
PIT3665G2019-06-10. Service bulletin. SERVICE BRAKES. This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
PIT56812019-06-10. Service bulletin. SERVICE BRAKES. This Preliminary information communicates the location of the GM Accessory Performance Brake System Rotor Specifications
PIP5498L2019-06-10. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates A vehicle may have a concern of DTC P050D setting along with a P0300 after a cold start up. White smoke and/or coolant odor may come from exhaust for an extended period of time at cold start as well. Cause Coolant getting into the cylinders, and provides direction for the repair.
PIT5662B2019-06-10. Service bulletin. PARKING BRAKE. This Preliminary information communicates information to diagnose DTC C056D or C056E.
PIP5585B2019-06-03. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates As part of our ongoing quality improvement efforts the Engine Control Module (ECM) E90 part numbers 12690388 will be placed on a parts restriction through the Product Quality Center (PQC) This parts restriction will assist Engineering with product feedback
PIT56772019-06-03. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates the following issues and directs dealership to inspect the engine harness for shorting. Some customers may comment on any of the following concerns: - SES MIL - No Start - No Crank - Engine runs rough - Reduced engine power - Erratic speedo When checking for DTC's any combination may be found: P001A P2B00 P2B01 P2B03 P2B96 P001B P003D P0107 P018C P01E5 P01E6 P01E7 P0237 P0340 P0341 P0355 P0365 P037C P03F0 P0521 P0522 P0532 P0616 P077C P07BF P1101 P112F P146D P159F p16A0 p16A2 P2122 P26E5 P2812 P2814 P2B53 P2C05 P2C08 P2C09 P2C0C P2C0D P2C10 P2C12 P2C15 P2C16 P2C19 P305E P3084 P3089 P308E P3093 P3094 P3095 P3098 P30B0 P30B3 P30CF U0100 U0101 U0140 U0644 U0672
PIP5593C2019-06-03. Service bulletin. POWER TRAIN. This Preliminary information communicates to the dealer technician that the 10L80 transmission has been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.