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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
16NA1092019-09-23. Service bulletin. STEERING. This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
PIP5407A2019-09-16. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have Diagnostic Trouble Code P06DD or no or low oil pressure. Technician will replace timing chain tensioner guide. If oil pump face is damaged and or worn thru replace oil pump. Inspect bearings for damage wear due to debris from oil pump.
PIT5677A2019-09-16. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. 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 - Blown Fuse(s): F46UA, F47UA, F51UA, F78UA, F85UA, F86UA, F87UA, and/or F90UA When checking for DTC's any combination may be found: C15AA 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 U0073 U0100 U0101 U0140 U0644 U0672
PIT5663B2019-09-16. Service bulletin. EQUIPMENT. This PI was written to inform dealers of a condition where a "Climate off" message will be displayed on the screen even thought the HVAC system is fully operational. Dealers are also informed that engineering is working on a solution
PIT5653A2019-09-16. Service bulletin. EQUIPMENT. This Preliminary Information communication provides information to the technician about vehicles headrest monitors shutting off intermittently when closing driver door. Dealers should not replace any parts for this concern. Dealers should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
PIP5575E2019-09-16. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This Preliminary information communicates to the dealer technician that the transmission control module P/N 24296206 restriction has ended.
PIP5630B2019-09-16. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. This Preliminary information communicates A vehicle may have a concern of no oil pressure and/or P0521 set. the releif valve in the pump is sticking or the number 1 main bearing is damaged. Drop oil pan and confirm #1 main is spun or not. If bearings are OK Then change oil pump.
PIT5663A2019-09-16. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT:ELECTRICAL. This PI was written to inform dealers of a condition where a "Climate off" message will be displayed on the screen even thought the HVAC system is fully operational. Dealers are also informed that engineering is working on a solution
PIT5288G2019-09-16. Service bulletin. STEERING; VISIBILITY; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that may have any of these concerns remote keyless entry, passive Entry and Start Inoperative, No Fob detect message on driver information center, service tire pressure system, no audio, touch screen Inoperative, Steering Wheel Controls Inoperative, Service Stabilitrak, rear power windows inoperative, rear wiper inoperative, and or a dead battery. Technician may find Diagnostic Trouble Codes B3101, B144C, C0710, C0544, U1548, U1549, U154A, U0151, U0126, U0415, U0077, U0028 and/or U0029. Technician should inspect the left instrument panel for the wire harness being pinched. Technician will need to repair the wire harness and reroute the wire harness.
PIP5653B2019-09-16. Service bulletin. EQUIPMENT; POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT. This Preliminary information communicates that engineering has developed a repair for a chirp noise associated with the front axle assembly.
PIT4529E2019-09-16. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This preliminary information explains that there are differences between the Elevated Idle, PTO and High Idle options.
PIT5695A2019-09-16. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, AIR:DISC:PADS; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS. This Preliminary information communicates an issue where the brake pad monitor life % counts down to quickly. Engineering released new Brake System Control Module Software to correct this issue and dealership are to reprogram the BSCM.
PIT57022019-09-16. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This Preliminary information communication provides information to the technician on installing Regular Production Option Code 9L7 Up-fitter Auxiliary Switches. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 153. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
PIP5575D2019-09-16. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer technician that the transmission control module P/N 24296206 is on restriction through the PQC.
PIP5580C2019-09-16. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary information communicates the exchange program to assist engineering in identification of any early production issues.
PIP5653A2019-09-16. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary information communicates that engineering has developed a repair for a chirp noise associated with the front axle assembly.
PIT57012019-09-16. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary information communicates diagnostic aide for finding a intermittent battery draw.
PIC63702019-09-16. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates information on intermittent DIC welcome logo flickering or blank for first 2 min when entering the vehicle if the doors were left unlocked. Currently no repair and GM engineering is working on a resolution. This PI will be deleted and a bulletin created once a permanent repair is available.
19NA1602019-08-26. Service bulletin. ELECTRICAL SYSTEM:HORN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This technical bulletin provides repair information to correct a customer concern of Intermittent or Continuous Horn Blowing, Horn Activation Sensitive to the Touch.
19NA1532019-08-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM for metal.
19NA1512019-08-26. Service bulletin. ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This technical bulletin advises the dealership to charge the battery and update the ECM to correct the concerns.
19NA1212019-08-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This technical bulletin provides a procedure to perform a trans fluid flush to correct the customers concern.
19NA0102019-08-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This informational bulletin provides information for dealers/technicians on Information on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Has Rotational Feature that Allows for Adjusting of the Angle of the HUD Image.
19NA0052019-08-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY. This technical bulletin provides a procedure to replace the fill pipe if found the cause of the noises at highway speeds.
N192210460 012019-08-26. Service bulletin. ENGINE AND ENGINE COOLING; SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM. N192210460-01 - Service Update - Certain 2019 Cadillac CT6 equipped with engine RPO?s LSY or LTA, Chevrolet Silverado 1500 (New Model), and GMC Sierra 1500 (New Model) vehicles have a condition where the brake system control module (BSCM) may cause a service brake assist message to appear on the driver?s information center (DIC), and a service engine soon light to illuminate on the dashboard. This may cause the brake pedal feel to be different. The pedal travel will increase for normal/light braking applies. This is caused by a software issue where the motor position sensors do not correlate. Dealers will reflash the BSCM with updated software.

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