Blazer FWD

620 service bulletins filed with NHTSA for this model year

• 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 2, 2026UNKNOWN OR OTHER661.40

  • Fixes to help prevent loss of functionality for OnStar, infotainment apps, and connectivity features.

• May 28, 2026ELECTRICAL SYSTEMN242468490-02

  Certain vehicles may have missing cavity plugs from the rear chassis harness electrical connector. Dealers are to inspect the rear chassis harness and replace missing harness plugs as necessary.

• 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.

• May 27, 2026UNKNOWN OR OTHERN262547330

  Certain vehicles may have a condition in which the Telematic Control Module may enter an unrecoverable state. Dealers are to reprogram the Telematic Control Module. IMPORTANT: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level (The same calibration screen MUST be displayed to validate the module has been programmed to the latest level). Owners who have accepted applicable terms and conditions will have the oppor

• May 26, 2026UNKNOWN OR OTHER661.20

  • Fixes to help ensure successful vehicle software updates.

• May 21, 2026UNKNOWN OR OTHERPIT6215C

  This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.

• May 15, 2026UNKNOWN OR OTHERPIP6103B

  This PI explains that the T18, Battery charger drive power distribution control modules are on parts restriction thru TAC.

• and 612 more

Source: NHTSA manufacturer communications (technical service bulletins).