2026 Chevrolet Blazer TSBs
57 manufacturer communications for the 2026 Chevrolet Blazer sit in NHTSA's public file. A TSB is factory repair guidance, not a recall — the repair is not automatically free. The 2026 Blazer problem report covers complaints, recalls, and investigations.
What the bulletins cover
Warranty extensions, campaigns & software updates
Worth checking your VIN against — these can mean free or reimbursed work if your vehicle qualifies.
Certain vehicles listed above may have a condition in which the oil filter was not adequately tightened. Dealers are to check and tighten the oil filter if found to be loose.
Most recent service bulletins
The 20 most recent of 57 communications on file. The complete set is searchable on NHTSA's page for this vehicle.
This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating.
PI to help diagnose A/C concern
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
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:…
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.
This PI explains that the T18, Battery charger drive power distribution control modules are on parts restriction thru TAC.
This Preliminary information communicates to dealers a procedure to reset the radio.
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
Pi created to provide GM dealers with information on gathering information for projection issue
PI created to guide technicians through radio restriction process
This Preliminary information communicates to dealers a procedure to reset the radio.
The document makes technicians aware of a valvetrain tick noise that is created by one or more soft hydraulic valve lash adjusters. The soft lash adjuster concern is due to debris from the valve rocker arm, entering into the lash adjuster. The document instructs the technician…
This Preliminary information communicates to dealers a procedure to reset the radio.
This Preliminary information communicates to dealers a procedure to reset the radio.
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:…
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
The document makes technicians aware of a valvetrain tick noise that is created by one or more soft hydraulic valve lash adjusters. The soft lash adjuster concern is due to debris from the valve rocker arm, entering into the lash adjuster. The document instructs the technician…
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.