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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.

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By component

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Bulletins, newest first
19NA0472019-05-20. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Technical bulletin provides procedure information for dealers/technicians on Radio Software Version V803 Over-the-Air Update.
19NA0352019-05-20. Service bulletin. PARKING BRAKE:DRIVELINE:HYDRAULIC:ACTUATOR; PARKING BRAKE. This technical bulletin provides a procedure to validate if the parking pawl actuator is not working as intended, causing the parking pawl to engage while driving.
18NA3772019-05-20. Service bulletin. SEATS. This technical bulletin provides repair information to correct a customer concern of front seat lateral movement and/or click type noise while driving.
18NA3012019-05-20. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides a procedure to install higher amp fuses to correct the axle actuator high amperage draw.
17NA2282019-05-20. Service bulletin. POWER TRAIN. This informational bulletin provides information on Click or Tick Noise on 3-4 Shift that it should be considered a normal characteristic.
N182201851-012019-05-20. Service bulletin. FORWARD COLLISION AVOIDANCE; LANE DEPARTURE; ELECTRICAL SYSTEM. Service Update. In certain vehicles, the park assist may be inoperable and the customer does not have the ability to turn the feature on or off. Dealers will reprogram the park assist feature and then clear all codes.
N1922104602019-05-13. Service bulletin. SERVICE BRAKES. N192210460 - 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.
N1922120902019-05-13. Service bulletin. STRUCTURE. N192212090 - Service Update. Certain vehicles may have rear bumper flanges that were manually bent after chrome plating. This bending could cause micro-cracking of the chrome plating and ultimately result in red rust forming on the base steel bumper. Dealers are to inspect for rust with step pad in place and apply wax if no rust is present. If rust is present with step pad in place, replace the chrome bumper.
N1922135502019-05-13. Service bulletin. TRAILER HITCHES; ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. N192213550 - Service Update. Certain vehicles may have a condition where the instrument panel cluster displays that a trailer is connected or disconnected when there is no trailer attached to the vehicle. Dealers are to reprogram the trailer lighting control module.
PIE05152019-04-22. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT. This engineering informational bulletin is requesting information for checking for DTCs and the voltage (relative to a ground) on BOTH sides of the 400A starter fuse in the Battery Distribution Engine Compartment Fuse Block.
PIE0507A2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. This engineering informational bulletin is requesting information on experiencing a blue screen with service rear vision system message on the radio display when shifting into reverse or a black or blank rear camera image when viewing the 270-degree/360-degree Top Down surround view.
PIE0502A2019-04-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This engineering information PI ends the need for information from the field on navigation error message, intermittently or consistently, that appears on the radio display or instrument cluster while navigation is being used.
PIE0500A2019-04-22. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This engineering informational bulletin is requesting information to check the shutters through the grille opening of the vehicle. If snow and/or ice is present on the active grille air shutters, take pictures and submit through the Field Reporting Process.
PIE0499B2019-04-22. Service bulletin. FUEL SYSTEM, OTHER:STORAGE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:WIRING. This engineering informational bulletin is requesting information and document the exact location of the wire chafing by taking a photo of the flex fuel pigtail as it appears BEFORE repairs are made.
1008110001G2019-04-22. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on proper use of floor mats.
150601002H2019-04-22. Service bulletin. EQUIPMENT; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL on.
110849001Z2019-04-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF.
110089005N2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information on Dealer Empowerment Labor Operations and Customer Enthusiasm.
100845001F2019-04-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides information for electrical ground repairs using new replacement fasteners with "conductive finish".
090089002Q2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer.
070849020P2019-04-22. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
060605001H2019-04-22. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This informational bulletin explains the normal characteristics of exhaust noise during active fuel management when in Three or Four Cylinder Mode.
060089029O2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on interior cleaning products and what is offered to clean the interiors of GM vehicles.
050604022P2019-04-22. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
040089053G2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for the dealer technician to gather as much information to help aid Engineers by completely filling out requested reports.

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