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Service bulletins for the 2023 Chevrolet Silverado

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.

1510 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
N2525155902026-01-27. Service campaign. ELECTRICAL SYSTEM. Certain vehicles listed above, may have a condition in which the body-to-chassis ground strap may be corroded. Dealers will replace the ground strap.
N252494003-022026-01-21. Service campaign. ENGINE. Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine damage and engine failure. This special coverage covers if an engine failure occurs in the vehicle as a result of the condition described above for a period of 10 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 23, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 23, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the engine. The repairs will be made at no charge to the customer.
PIP60982026-01-19. Service bulletin. UNKNOWN OR OTHER. This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.
PIT6400A2026-01-19. Service bulletin. UNKNOWN OR OTHER. This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier listed in the bulletin.
PIT6425C2026-01-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
PIP6023D2026-01-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates the possibility of injector related DTC's with malfunction indicator lamp on and potential rough idle
PIT6344A2026-01-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with blower motor speed changing when air flow is blocked by snow.
PIP5700G2026-01-19. Service bulletin. UNKNOWN OR OTHER. This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering
PIT6457B2026-01-19. 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.
PIT6369B2026-01-14. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealership technicians to perform the reset for the 2 modules noted above.
PIP4902U2026-01-13. Service bulletin. UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIT5828E2026-01-13. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.
PIT6276B2026-01-13. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with a service keyless entry message caused by aftermarket door handle covers and they should be removed.
PIT5689M2026-01-04. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
PIC6540F2026-01-04. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers a procedure to reset the radio.
654.102025-12-25. Over-the-air update. UNKNOWN OR OTHER. • Improvements to audio system performance. • Fixes to help ensure proper functionality for the center display. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
N25-2505522025-12-24. Over-the-air update. UNKNOWN OR OTHER. Improvements to OnStar functionality. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
PIP6092A2025-12-22. Service bulletin. UNKNOWN OR OTHER. This preliminary information advises dealers that Engine Control Module designation E01 is on a ordering restriction through technical assistance.
PIT6457A2025-12-15. 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.
PIC6629B2025-12-15. 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
PIT6224B2025-12-08. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates the Heavy Fuel Usage message in the DIC is normal due to low fuel range and current driving habits, or low fuel range and vehicle is idling.
PIC6602Q2025-12-08. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
PIC6630A2025-12-08. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers steps to follow to recover an IOK radio.
25-NA-1562025-12-04. Service bulletin. WHEELS. This service bulletin provides information on Tire Sidewall Irregularities.
PIT6132D2025-12-03. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issues with the HVAC making a hum buzz noise when the blower is set to a higher speed. Engineering is working on a new HVAC door seal material to correct the noise.

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