TransmissionMedium
9-speed automatic harsh or delayed shifts.
- Typically appears
- Any
- What to inspect
- Test-drive through the gears for smoothness.
2019–2024 Chevrolet Blazer · common problems & known faults
The modern Blazer is a style-led midsize crossover. It's generally solid with some transmission and electronic complaints.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed July 2026
Quick answer
The most commonly reported faults on the 2019–2024 Chevrolet Blazer are 9-speed automatic harsh or delayed shifts, Electronic parking brake and ABS sensor faults and AC compressor and blower issues on some cars. Most reported issues are medium or low severity, but a pre-purchase inspection is still recommended. Full inspection points, onset mileage and what to check are listed below.
Reliability snapshot
Based on the documented faults on this page for the Chevrolet Blazer.
8.1/ 10
- Critical
- 0
- High
- 0
- Medium
- 3
- Low
- 1
Guidance only · reflects reported patterns, not a specific car's condition.
Known faults to check
ElectricalLow
Infotainment reboots and Stop/Start faults.
- Typically appears
- Any
- What to inspect
- Test the touchscreen and auto stop/start behaviour.
BrakesMedium
Electronic parking brake and ABS sensor faults.
- Typically appears
- Any
- What to inspect
- Check for warning lights and test the parking brake.
HVACMedium
AC compressor and blower issues on some cars.
- Typically appears
- 60,000+ miles
- What to inspect
- Confirm the AC blows cold and the fan works on all speeds.
Inspecting a Chevrolet Blazer?
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Check this exact carFrequently asked questions
Is the Chevrolet Blazer reliable?
Average — mostly minor electronic and transmission niggles rather than major failures.
Does the Blazer have transmission problems?
Some owners report rough 9-speed shifts; test-drive carefully.
What should I check on a used Blazer?
Transmission feel, infotainment, brakes and AC.
Sources & further reading
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.