WenmarOpen by Wenmar Pro

Service bulletins for the 2023 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.

1426 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
20-NA-0822023-04-13. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards.
19-NA-2192023-04-13. Service bulletin. ENGINE AND ENGINE COOLING. This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
16-NA-0192023-04-13. Service bulletin. POWER TRAIN. This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
03-06-04-017S2023-04-13. Service bulletin. FUEL SYSTEM, DIESEL. This service bulletin provides information on availability of Diesel Fuel additives.
N2223854902023-04-12. Service bulletin. ELECTRICAL SYSTEM. Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the DC/AC inverter which operates the power outlets (110/220V) is not functional on certain 2023 model year vehicles listed above, built beginning September 23, 2022. The affected vehicle owners should have been made aware of the condition at sale, and notified, that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to install the accessory AC and DC power control module, install fuse, and reprogram the body control module (BCM).
PIE0738A2023-04-12. Service bulletin. ENGINE AND ENGINE COOLING. This engineering information (EI) closure ends the need for further information from technicians in regards to the Malfunction Indicator Lamp (MIL) illuminated on the Driver Information Center (DIC).
23-NA-0422023-04-12. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides repair information to update radio software to correct customer concerns of Software related issues.
23-NA-0352023-04-12. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This technical bulletin provides repair information to correct a customer concern of Instrument Cluster RPO UDV 162.2 Software Update – Multiple Updates.
22-NA-0092023-04-12. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
21-NA-1062023-04-12. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This service bulletin provides information for the technician that may experience a condition when after performing a DTC Clear/Reset on the TCM during diagnosis or after completion of a transmission repair or replacement, the DTCs did not clear or appear to reset on the next engine start.
21-NA-0892023-04-12. Service bulletin. SERVICE BRAKES. This technical bulletin provides a procedure to replace the rear calipers if found packed for of mud and debris.
21-NA-0612023-04-12. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs.
19-NA-2372023-04-12. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin explains how to identify possible DEF system contamination.
N222375791-022023-04-11. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 2022 and 2023 model year vehicles, built beginning December 2, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified, that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to replace the park assist control module to restore the Park Assist feature. Note: some vehicles may also require reprogramming of the instrument cluster or the active safety control module.
18-NA-0732023-04-07. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
16-NA-3802023-04-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
16-NA-3762023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on higher than expected oil consumption.
16-NA-3722023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on common diesel engine tick noises and how they are considered part of normal operation and no parts should be replaced for these normal operating conditions.
16-NA-2442023-04-06. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.
16-NA-2222023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
10-06-05-002L2023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
07-06-01-016I2023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
00-06-01-026Q2023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
00-06-01-012M2023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
N222375791-012023-04-05. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 2022 and 2023 model year vehicles, built beginning December 2, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified, that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to replace the park assist control module to restore the Park Assist feature. Note: some vehicles may also require reprogramming of the instrument cluster or the active safety control module.

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