Is the 2020 Chevrolet Blazer reliable?

Overall reliability is generally competitive for a midsize SUV, but it’s not perfect; the most frequent concerns involve transmission shift feel and occasional infotainment/electrical glitches, so condition and service history matter.

What are the 2020 Chevrolet Blazer common issues?

The most reported 2020 Chevrolet Blazer common issues include harsh or hesitant shifting, infotainment screen or connectivity problems, intermittent check engine lights tied to sensors/EVAP systems, and interior rattles.

Are 2020 Blazer maintenance costs expensive?

Costs are typically moderate for the segment: routine items like oil changes, brakes, and tires are straightforward, while bigger expenses can come from electronics diagnostics or out-of-warranty drivetrain repairs if problems develop.

What are the best years to buy a Chevrolet Blazer?

Many shoppers prefer later production years within the same generation because software updates and running changes may reduce early issues; compare 2020 to newer model years with documented service records and warranty coverage when possible.

What should I check before buying a used 2020 Chevrolet Blazer?

Test drive at low speeds for shift smoothness, confirm all infotainment functions (Bluetooth, camera, CarPlay/Android Auto), scan for stored diagnostic codes, review recall/service history, and inspect tires/brakes plus signs of water leaks or persistent interior rattles. For a deeper look at trims, towing/cargo specs, fluid capacities, and the complete factory maintenance schedule, get a complete owner’s guide for the 2020 Chevrolet Blazer.

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Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2020 Chevrolet Blazer Reliability ReportCommon Problems, Repair Costs & Expert Verdict

78/ 100

KeepScore

MODERATE RISK

Grade: C+

A sharp-looking SUV with solid bones, but prone to a few common GM electrical and accessory frustrations that can impact ownership experience.

Full system breakdown + what I would do

Quick Facts · 2020 Chevrolet Blazer

Has 3 NHTSA recalls on record — the most notable involves the tires.
Scores 5 points below the strongest nearby year — the 2022 Chevrolet Blazer earns a 83.
The system most likely to surface first: electrical / infotainment system (moderate severity).

Should You Buy the 2020 Chevrolet Blazer?

The 2020 Chevrolet Blazer presents a stylish and engaging option in the mid-size SUV segment, but it's crucial to acknowledge its moderate risk profile. While its core mechanicals are generally robust, owners should anticipate potential frustrations with its complex electrical system and a few specific component weaknesses. Approach a purchase with diligence, especially regarding service history, and be prepared for potential minor to moderate repairs down the line.

Biggest Strengths

V6 engine and 9-speed transmission generally reliable
Solid chassis and responsive handling for an SUV
Modern safety features and infotainment technology

Top Risk Areas

The systems that break first on the 2020 Chevrolet Blazer. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Electrical / Infotainment Systemmoderate

HVAC Systemmoderate

AWD System (PTU/Rear Differential)major

Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

NHTSA Recalls

3 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

TIRES

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.

AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR

General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.

What breaks on the 2020 Chevrolet Blazer?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Chevrolet Blazer by Year

Compare KeepScores across nearby years of the Chevrolet Blazer. Click any year for its full report.

All Chevrolet Blazer years ranked →Chevrolet Blazer years to avoid →Chevrolet Blazer common problems →

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Frequently Asked Questions

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