# 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 bulletins from NHTSA, as of 2026-10-19.

- [PIT5698F](/bulletins/11037555.md), 2026-09-30, Service bulletin: UNKNOWN OR OTHER. This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- [PIP4902W](/bulletins/11037253.md), 2026-09-10, Service bulletin: UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- [PIT5995B](/bulletins/11037252.md), 2026-09-10, Service bulletin: UNKNOWN OR OTHER. This Preliminary Information provides the dealer information of the location of the rear seat child anchors.
- [PIT6196A](/bulletins/11036693.md), 2026-09-02, Service bulletin: UNKNOWN OR OTHER. This Preliminary Information provides a diagnostic tip for diagnosing an issue with Cruise Control, Adaptive Cruise and Lane Keep Assist Turns Off or Inoperative.
- [N242484750\-02](/bulletins/11036594.md), 2026-09-01, 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.
- [PIC6551C](/bulletins/11036392.md), 2026-08-27, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
- [PIC6589B](/bulletins/11035696.md), 2026-08-04, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates to the techicians a diagnostic tip if a customer has a complaint of a whistle/wind noise at highway speeds.
- [PIC6548B](/bulletins/11035349.md), 2026-07-30, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates to the technician the direction needed when encountering an issue with switching between adaptive cruise control and regular cruise control or an issue with automatic high beam feature after the front camera was replaced.
- [PIT5099J](/bulletins/11035340.md), 2026-07-29, Service bulletin: UNKNOWN OR OTHER. PI to help diagnose A/C concern
- [PIT5966F](/bulletins/11034769.md), 2026-07-07, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
- [PIP6031E](/bulletins/11033725.md), 2026-06-08, Service bulletin: UNKNOWN OR OTHER. This PI addresses leaks from the case half and provides repair direction to dealer technicians
- [PIP6032C](/bulletins/11033723.md), 2026-06-08, Service bulletin: UNKNOWN OR OTHER. PIP6032B provides diagnostic direction for dealers when encountering transmission leaks
- [PIP6033B](/bulletins/11033719.md), 2026-06-08, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates to technicians to remove the pulley assembly and inspect the drive chain and pulley surfaces.
- [PIT6519](/bulletins/11033150.md), 2026-06-02, Service bulletin: UNKNOWN OR OTHER. This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications. Engineering is investigating and this PI will be converted to a bulletin when a repair is available.
- [PIC6626A](/bulletins/11032766.md), 2026-05-19, Service bulletin: UNKNOWN OR OTHER. PI created to guide technicians through radio restriction process
- [PIC6423A](/bulletins/11032764.md), 2026-05-19, Service bulletin: UNKNOWN OR OTHER. Pi created to provide GM dealers with information on gathering information for projection issue
- [PIC6551B](/bulletins/11032763.md), 2026-05-19, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
- [PIP6029A](/bulletins/11031713.md), 2026-04-29, Service bulletin: UNKNOWN OR OTHER. This PI instructs dealers to install foam around the shifter cable to stop rattling
- [PIT3271Q](/bulletins/11030974.md), 2026-04-07, Service bulletin: UNKNOWN OR OTHER. This preliminary information communicates information about how to determine if a wheel and tires size change is available.
- [PIC6553B](/bulletins/11030970.md), 2026-04-07, Service bulletin: UNKNOWN OR OTHER. This bulletin communicates to a dealer the repair direction that should be taken if they encounter a vibration from the engine when the vehicle is parked facing downhill.
- [N25\-250552](/bulletins/11030532.md), 2026-04-02, Over\-the\-air update: UNKNOWN OR OTHER. Improvements to OnStar functionality.
- [PIP6104](/bulletins/11030092.md), 2026-03-17, Service bulletin: UNKNOWN OR OTHER. This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
- [PIP4902V](/bulletins/11030091.md), 2026-03-17, Service bulletin: UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- [PIT6425D](/bulletins/11029950.md), 2026-03-11, 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'ss
- [N25\-250552](/bulletins/11028977.md), 2026-02-24, 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.

More: [the next page](/v1/vehicles/2022_chevrolet_trailblazer/bulletins?cursor=2026-02-24_11028977) (JSON)

JSON: [/v1/vehicles/2022_chevrolet_trailblazer/bulletins](/v1/vehicles/2022_chevrolet_trailblazer/bulletins)

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