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Service bulletins for the 2022 Chevrolet Trailblazer

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
PIC66262026-02-01. Service bulletin. UNKNOWN OR OTHER. PI created to guide technicians through radio restriction process
PIP5929G2026-01-29. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.
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.
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
PIP4902U2026-01-13. Service bulletin. UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIC66322025-12-29. Service bulletin. UNKNOWN OR OTHER. This bulletin communicates to the dealer actions to take when a customer has no or reduced air flow from HVAC vents.
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.
PIP6033A2025-12-22. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to technicians to remove the pulley assembly and inspect the drive chain and pulley surfaces.
PIP6031D2025-12-15. Service bulletin. UNKNOWN OR OTHER. This PI addresses leaks from the case half and provides repair direction to dealer technicians
25-NA-1562025-12-04. Service bulletin. WHEELS. This service bulletin provides information on Tire Sidewall Irregularities.
00-06-01-026R2025-12-03. Service bulletin. ENGINE. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
PIT5214G2025-11-28. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further support. For any vehicles that remains unrepaired after being at the dealer for three days or more and a related bulletin or PI is not found, contact General Motors Technical Assistance Center for further support.
PIP6036C2025-11-03. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates diagnostic aids for a surge or fishbite concern
PIP5975B2025-11-03. Service bulletin. UNKNOWN OR OTHER. This PI advises to get a session log for transmissions with broken chains
23-NA-1532025-10-25. Service bulletin. ENGINE. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
PIT6425B2025-10-24. 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
PIP5929E2025-10-24. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.
PIC6551A2025-10-24. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
PIP5929F2025-10-24. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.
PIT6425A2025-10-24. 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
PIT64402025-10-24. Service bulletin. UNKNOWN OR OTHER. The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
N242484750-012025-10-20. Warranty extension. ENGINE. Special Coverage. Certain 2022 model year Buick Encore GX and Chevrolet Trailblazer vehicles, equipped with a 1.2L engine, may have a condition that could cause the turbocharger to fail. If this condition occurs, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Additionally, a message may be displayed indicating the vehicle’s available engine power is reduced. This special coverage covers the condition described above for a period of 15 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 January 14, 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 January 14, 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 turbocharger as necessary. The repairs will be made at no charge to the customer.
23-NA-1192025-10-16. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.
23-NA-1222025-10-01. Service bulletin. ENGINE. This service bulletin provides a procedure to fix an oil leak from a porous area at the cylinder head and how to fix it so that the engine does not have to be replaced.
135982025-09-10. Other. UNKNOWN OR OTHER. New Vehicle Monitoring Programs Section in IVH

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