What reliability score does the Chevrolet Blazer get?

5.7 out of 10, scored from the 8 faults we document for this model and how severe each one is.

Is the 2019–2024 Chevrolet Blazer reliable?

Scored from 8 documented faults · reviewed by the VehicleFaults Research Team

Quick answer

5.7/ 10

Mixed

On our documented-fault scoring the Chevrolet Blazer rates 5.7 out of 10 · mixed. We hold 8 known faults for it and 1 are rated high severity, so the risk is real but contained. The weak points cluster around transmission, electrical and brakes. A well-serviced example with evidence for the big-ticket items is usually a safe buy; the score describes the model, not the specific car in front of you.

Verdict · Negotiate · budget for the known faults

What the score is built from

Critical: 0
High: 1
Medium: 5
Low: 2

Weak points cluster around transmission, electrical, brakes, hvac.

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The faults that decide it

Engine (3.6L V6)High

Timing chain stretch causing metallic rattle and rough idle.

Typically appears: 70,000-100,000 miles
What to inspect: Perform a cold start with the bonnet open. Listen closely to the front timing cover for a distinct metallic rattle lasting 2-3 seconds before oil pressure builds.
Typical repair: Timing chain, tensioner & guides · £900–£2,400

TransmissionMedium

9-speed automatic harsh or delayed shifts.

Typically appears: Any
What to inspect: Test-drive through the gears for smoothness.
Typical repair: Routine repair · £180–£700

BrakesMedium

Electronic parking brake and ABS sensor faults.

Typically appears: Any
What to inspect: Check for warning lights and test the parking brake.
Typical repair: Brakes (discs, pads, caliper) · £200–£800

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.
Typical repair: Air-con regas or compressor · £90–£900

SuspensionMedium

Front anti-roll bar drop link wear causing knocking noises.

Typically appears: 50,000-80,000 miles
What to inspect: Push down firmly on the front wings to bounce the suspension, listening for a clunk, or perform a low-speed figure-of-eight lock-to-lock test on the forecourt.
Typical repair: Suspension refresh (per axle) · £250–£1,100

Costs are indicative UK independent-garage bands for budgeting and negotiation · never a quote.

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What the score is built from

The faults that decide it

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