2023 Chevrolet Blazer problems, complaints & recalls
Most-reported problem areas: Power Train (9) · Service Brakes (6) · Engine (5)
🧭 Reliability snapshot
Compared against other Chevrolet Blazer model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (2)
Power Train:automatic Transmission 2023-03-16 · campaign 23V172000 · 8,744 vehicles
Defect: General Motors, LLC (GM) is recalling certain 2023 Cadillac XT6, GMC Acadia, Chevrolet Blazer, Traverse, and 2022-2023 Cadillac XT5 vehicles. The transmission may have been built with an incorrect sun gear, which can result in the driver-side half-shaft disengaging from the transmission.
Risk: A half-shaft disengaging from the transmission can result in a loss of drive power or vehicle rollaway when the vehicle is placed in park. Either of these scenarios can increase the risk of a crash.
Fix: Dealers will replace the sun gears, free of charge. Owner notification letters were mailed on July 27, 2023. The remedy is expected to become available August 31, 2023. Owners may contact Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GMC's number for this recall is N222389310.
Power Train:driveline:driveshaft 2023-02-02 · campaign 23V042000 · 10 vehicles
Defect: General Motors, LLC (GM) is recalling certain 2023 Chevrolet Blazer and Traverse vehicles. The left-side half-shaft assemblies may be missing a retaining ring.
Risk: A missing retaining ring on the half-shaft can cause half-shaft inner joint separation, resulting in a loss of drive power or vehicle rollaway when the vehicle is placed in park. Either of these scenarios can increase the risk of a crash.
Fix: Dealers will replace the left-side half-shaft assembly, free of charge. Owner notification letters were mailed February 23, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222390180.
Service bulletins (576)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-10-16 · PIC6626B · Service Bulletin/Repair Instructions
pi created to guide technicians through radio restriction process
Unknown Or Other 2026-10-07 · PIT6110L · Service Bulletin/Repair Instructions
this preliminary information communicates an issue with the ses mil and dtc p062b and engineering is currently investigating.
Unknown Or Other 2026-09-28 · PIT6457C · Service Bulletin/Repair Instructions
this preliminary information is for technicians that may see dtcs that are history and should not perform any part replacements. they should follow the notes mentioned prior to anything being replaced.
Unknown Or Other 2026-09-28 · PIC6540K · Service Bulletin/Repair Instructions
this preliminary information communicates to dealers a procedure to reset the radio.
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Showing the 6 most recent of 576 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-15 · Engine And Engine Cooling:cooling System:radiator Assembly · 23,000 mi“the contact owns a 2023 chevrolet blazer. while the vehicle was at a dealer for routine maintenance, the contact was informed that an unknown fluid was leaking from the radiator. the vehicle was less than one year old, and the radiator was replaced under warranty. two years and two months later, while at the dealer for a module repair, the contact …”
2026-09-18 · Unknown Or Other · 💥 crash“2023 chevrolet blazer 42334 miles 9/18/2026 component failed: 2023 blazer rs eboost system. integrated electronic brake booster / master cylinder / brake pedal sensor assembly. component available for inspection. same left front corner had frozen caliper frc13443c at 37,940 miles june 2025 to pass inspection, sold as certified at 38,038 miles. ve…”
2026-08-29 · Service Brakes“multiple warning lights on the vehicle stating the abs brake system was not functioning, the letters brake showed by the gauges but it was not the parking brake because i put that on to check it and it was a different warning light. the lane assist was not functioning. in january i had the brakes looked at because they are squealing anytime you use…”
2026-08-11 · Forward Collision Avoidance: Warnings“i am reporting a recurring safety issue with the forward collision alert/automatic emergency braking system on my 2023 chevrolet blazer 2lt. the vehicle frequently activates the forward collision alert when there is no vehicle, pedestrian, or other obstruction in front of me. the red collision warning will illuminate and the system will beep even …”
2026-08-02 · Engine“the vehicle’s radiator developed a coolant leak that was discovered and confirmed by the dealership during a routine oil change, tire rotation and state inspection. there were no warning lights, warning messages prior to the dealership discovering the leak. the radiator required replacement. the dealership also told me that they had the replacement…”
2026-07-23 · Electrical System:instrument Panel:speedometer/Odometer · 57,705 mi“odometer fraud. the contact purchased a 2023 chevrolet blazer. it was discovered that there was a mileage discrepancy. the vehicle was a dealer sale. at the time of the purchase the vehicle mileage was 57,692. it was discovered using the kelley blue book/experian that in 2022 vehicle was listed for sale with mileage of 57,705, and in 2023 same veh…”
2026-07-16 · Electrical System“"i am the owner of a 2023 chevrolet blazer rs. the digital odometer and speedometer screen intermittently crashes and goes completely black for 15 to 20 seconds while the vehicle is in motion on public roads. this creates an immediate safety hazard as i am left with zero knowledge of my current speed. general motors has acknowledged this specific s…”
2026-06-23 · Power Train · 25,000 mi“the contact owns a 2023 chevrolet blazer. the contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal. there was no warning light illuminated. the vehicle was taken to the dealer on several occasions to be repaired; however, the dealer was unable to duplicate the failure or determine the cau…”
2026-06-23 · Power Train · 107,000 mi“the contact owns a 2023 chevrolet blazer. the contact stated that while driving 10 mph and pulling into a parking lot, the sun gear and the drive shaft fractured. the vehicle became inoperable. the vehicle was pushed to a safe place. the check engine warning light illuminated after the failure. the contact associated the failure with nhtsa campaign…”
2026-05-29 · Steering · 48,000 mi“the contact owns a 2023 chevrolet blazer. the contact stated that while driving, a code appeared on the dashboard p0128. when the vehicle's engine was switched off, the engine cooling fan continued to run. warning light stating the steering would be disable.; however power steering was not lost. the vehicle was taken to a dealer where it was di…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.