Trailblazer AWD

223 service bulletins filed with NHTSA for this model year

• Jun 8, 2026UNKNOWN OR OTHERPIP6033B

  This Preliminary information communicates to technicians to remove the pulley assembly and inspect the drive chain and pulley surfaces.

• Jun 5, 2026UNKNOWN OR OTHERPIP6031E

  This PI addresses leaks from the case half and provides repair direction to dealer technicians

• Jun 5, 2026UNKNOWN OR OTHERPIC6548A

  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.

• Jun 3, 2026UNKNOWN OR OTHERPIT6503A

  This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.

• Jun 3, 2026UNKNOWN OR OTHERPIP6116

  This document assists GM Dealer technician's with diagnosing turbocharger concerns to ensure turbocharger replacement is necessary. The turbocharger part number will be placed on order restriction and the technician will have to contact GM Technical Assistance to verify the turbocharge is at fault and needed. GM Technical Assistance will verify the turbocharger is needed and then order it for the dealer.

• Jun 3, 2026UNKNOWN OR OTHERPIP6032C

  PIP6032B provides diagnostic direction for dealers when encountering transmission leaks

• May 29, 2026UNKNOWN OR OTHERPIC6611G

  PI provides information on how to obtain a restricted radio

• May 27, 2026UNKNOWN OR OTHERPIT6519

  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.

• and 215 more

Source: NHTSA manufacturer communications (technical service bulletins).