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
Only bulletins with type: Service bulletin are shown. Show all
| PIT6110L | 2026-10-14. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating. |
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| PIT6477D | 2026-10-06. Service bulletin. UNKNOWN OR OTHER. This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool |
| PIT6457C | 2026-10-05. Service bulletin. UNKNOWN OR OTHER. This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced. |
| PIC6540K | 2026-10-05. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers a procedure to reset the radio. |
| PIT5698F | 2026-09-30. Service bulletin. UNKNOWN OR OTHER. This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it. |
| PIP5700H | 2026-09-29. Service bulletin. UNKNOWN OR OTHER. This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering |
| PIT6545A | 2026-09-22. Service bulletin. UNKNOWN OR OTHER. This PI is created to inform GM dealers that some vehicles may intermittently fail to connect wireless Apple CarPlay or Android Auto after Bluetooth pairing during the first key cycle. The condition is caused by a software anomaly. |
| PIC6629F | 2026-09-16. Service bulletin. UNKNOWN OR OTHER. This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display |
| PIT6545 | 2026-09-10. Service bulletin. UNKNOWN OR OTHER. This PI is created to inform GM dealers that some vehicles may intermittently fail to connect wireless Apple CarPlay or Android Auto after Bluetooth pairing during the first key cycle. The condition is caused by a software anomaly. Do not replace parts. Engineering is investigating the root cause; customers may continue to drive the vehicle. This PI will be updated or replaced by a TSB once a resolution is determined. |
| PIT6543 | 2026-09-10. Service bulletin. UNKNOWN OR OTHER. This preliminary information communicates a diagnostic tip for the tailgate release system and tailgate ajar message. |
| PIP4902W | 2026-09-10. Service bulletin. UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. |
| PIT6529B | 2026-09-02. Service bulletin. UNKNOWN OR OTHER. This PI was created to address an Intermittent Loss of Connectivity, GPS, or Wi-Fi Due to OnStar Module concern. |
| PIC6551C | 2026-08-27. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues |
| PIT6031B | 2026-08-14. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue where an aftermarket autostop device or rear taillights is causing a dead battery. |
| PIT6110K | 2026-08-04. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating. |
| PIP6060A | 2026-07-30. Service bulletin. UNKNOWN OR OTHER. This PI communicates diagnostic information to assist Technicians with a possible transmission shudder |
| PIT6300C | 2026-07-30. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the technician on the a potential cause for Buzz/rattle/vibration/ from the passenger side when the vehicle is under light load, with a 3.0L LZ0 Engine. It also addresses the potential for a slow/no crank or not charging. |
| PIT6446A | 2026-07-30. Service bulletin. UNKNOWN OR OTHER. This PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used. |
| PIT5680B | 2026-07-30. Service bulletin. UNKNOWN OR OTHER. This PI provides information to repair the door water deflector which is not sealed properly allows water into the door jam/sill area. |
| PIT5099J | 2026-07-29. Service bulletin. UNKNOWN OR OTHER. PI to help diagnose A/C concern |
| PIT5509N | 2026-07-29. Service bulletin. UNKNOWN OR OTHER. This PI provides diagnostic tips for diagnosing electric trailer brakes issues. |
| PIT6473F | 2026-07-21. Service bulletin. UNKNOWN OR OTHER. This PI was created to help avoid unnecessary front camera module replacements |
| PIT5767B | 2026-07-21. Service bulletin. UNKNOWN OR OTHER. This PI provides a diagnostic tip on poor a/c performance due to a condenser issue and instructions to replace the ac condenser. |
| PIT6529A | 2026-07-21. Service bulletin. UNKNOWN OR OTHER. This PI was created to address an Intermittent Loss of Connectivity, GPS, or Wi-Fi Due to OnStar Module concern. |
| PIT6532 | 2026-07-13. Service bulletin. UNKNOWN OR OTHER. The purpose of this PI is to inform dealer technicians of a normal cab pressure relief valve noise to avoid unnecessary part replacement |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.