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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
030846004V2019-04-22. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on OnStar® VCIM is currently restricted parts. By working closely with our dealers and technicians, through the part restriction process, the General Motors team will gain a better understanding of any field concerns that may develop.
030089006Q2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores.
19NA0512019-04-22. Service bulletin. EQUIPMENT; LATCHES/LOCKS/LINKAGES; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides repair information to correct a customer concern of the hard-trifold tonneau front and/or rear cover unlatching, popping up.
19NA0442019-04-22. Service bulletin. ENGINE. This informational bulletin provides information on a normal engine operating condition for faster emission warm up time.
19NA0352019-04-22. Service bulletin. POWER TRAIN. This technical bulletin provides a procedure to validate if the parking pawl actuator is not working as attended causing the parking pawl to engage while driving.
18NA3832019-04-22. Service bulletin. VISIBILITY; STRUCTURE. This technical bulletin provides repair information to correct a customer concern of water found in rear interior of cab due to water leak at rear sliding window.
18NA3682019-04-22. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE: LANE KEEP: STEERING ASSIST. This technical bulletin provides a procedure to reset the parking assist module if the parking assist message is on when delivered to the dealership.
18NA3382019-04-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL; EQUIPMENT. This technical bulletin proves a procedure to update the rear infotainment monitors if found the cause of the audio concerns.
18NA1802019-04-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
18NA1442019-04-22. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to locate possible chassis wiring damage from areas along the frame and repair them if found.
18NA0372019-04-22. Service bulletin. ELECTRICAL SYSTEM. This Bulletin provides ECM reprogramming information to Correct DTC P2101.
18NA3832019-04-22. Service bulletin. STRUCTURE. This technical bulletin provides repair information to correct a customer concern of water found in rear interior of cab due to water leak at rear sliding window.
18NA3342019-04-22. Service bulletin. FUEL SYSTEM, GASOLINE. This informational bulletin provides information on Perceived Longer Crank, Misfire, Hesitation Feel and/or Surge conditions of the new L5P 6.6L Diesel Engine.
18NA3832019-04-15. Service bulletin. STRUCTURE. This technical bulletin provides repair information to correct a customer concern of water found in rear interior of cab due to water leak at rear sliding window.
18NA3342019-04-15. Service bulletin. FUEL SYSTEM, DIESEL. This informational bulletin provides information on Perceived Longer Crank, Misfire, Hesitation Feel and/or Surge conditions of the new L5P 6.6L Diesel Engine.
PIP56312019-04-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This Preliminary information communicates to the dealer technician additional Instructions For Control Valve Body Bolt Kit Part Number 24294356. The technician is instructed on which bolts need to be replaced and which bolts need sealant applied during valve body replacement.
PIP5541A2019-04-08. Service bulletin. POWER TRAIN; EQUIPMENT; ENGINE. This Preliminary information communicates to the dealer technician using the PICO scope will aid in determining if the if the engine or transmission is root cause of a vibration or shudder concern.
PIT3098G2019-04-08. Service bulletin. SUSPENSION. This Preliminary Information communication provides information to the technician about vehicles that have a lean to the left or right. Technician will need to measure fender wheel-opening heights, front and rear, to quantify vehicle lean. Fender wheel-opening heights are related to, but distinct from, trim height. The front wheel-opening height is known as P height, and the rear wheel-opening height is known as R height. Adjust and heights that are out of specification. After all adjustments are done, perform a front-end alignment and check headlight aim.
PIT5633B2019-04-08. Service bulletin. VISIBILITY. This Preliminary information communicates an issue with the power folding outside mirrors not stopping at the correct location when the mirror is power folded. Engineering has released updated mirrors assemblies with improvements to the pivot detent. Dealers are to replace the mirror assembly.
PIT5511C2019-04-08. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication advises the technician that some vehicles may have a dim Driver Information 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.
PIT56662019-04-08. Service bulletin. EQUIPMENT; ENGINE. This Preliminary information communicates an issue with a noise caused by the engine harness rubbing on the floor pan. Dealers are to reposition the harness to fix the noise.
PIP56332019-04-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This Preliminary information communicates A vehicle may have a check engine lamp on with a P015B stored. Possible intake manifold or exhaust system leak
PIT5638B2019-04-08. 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.
PIP56292019-04-08. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary information communicates to the dealer technicians that the oil life monitoring system for 2019 Duramax 6.6 L5P is under investigation by engineering.
PIP5575A2019-04-08. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer technician that the transmission control module P/Ns 24289415 and 24296206 are on restriction through the PQC.

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