2020 Chevrolet Blazer: Recalls, Problems & MPG
Here are the deets on the 2020 Chevrolet Blazer: 3 recalls, 221 owner complaints and up to 24 mpg combined.
Recalls
3 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Airbags Vehicle recall #20V446000 · 2020 · 769 vehicles
What's wrong: 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.
Why it matters: If the diffuser separates from the inflator during deployment, rrab performance May be degraded, increasing the risk of injury in a crash.
The fix: Gm will notify owners, and dealers will replace the suspect rrab modules, free of charge. The recall began September 3, 2020.
Transmission & drivetrain Vehicle recall #20V668000 · 2020 · 194,105 vehicles
What's wrong: The start/stop accumulator endcap May have missing bolts.
Why it matters: Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and May progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source May increase the risk of fire.
The fix: Gm will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020.
Tires Vehicle recall #21V115000 · 2021 · 33,838 vehicles
What's wrong: The affected tires were cured for too long during production.
Why it matters: Over cured tires May develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.
The fix: Gm will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 7 injuries and 0 deaths were reported.
What owners describe
- Electrical (76): the most common themes are electrical failure (20).
- Transmission & drivetrain (74): the most common themes are hard / delayed shifting (39), warning light on (17).
- Engine (70): the most common themes are warning light on (24), electrical failure (11).
- Other / unknown (57): the most common themes are stalls / loses power (8).
The 2020 Chevrolet Blazer has 221 owner complaints, ranking #13 of 27 Blazer model years for complaints (about average; the typical year has 297). Complaints peaked in 2025 (84 filed that year). The typical problem showed up when the car was about 5 years old, at a median of 49,500 miles. Neighboring years: 2019 (186 complaints, 2 recalls), 2021 (136 complaints, 1 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 2.0 L 4-cyl turbo | Automatic 9-spd | Front-Wheel Drive | 21 | 28 | 24 | Regular |
| 2.5 L 4-cyl | Automatic 9-spd | Front-Wheel Drive | 21 | 27 | 23 | Regular |
| 2.0 L 4-cyl turbo | Automatic 9-spd | All-Wheel Drive | 21 | 27 | 23 | Regular |
| 3.6 L 6-cyl | Automatic 9-spd | Front-Wheel Drive | 19 | 26 | 21 | Regular |
| 3.6 L 6-cyl | Automatic 9-spd | All-Wheel Drive | 18 | 25 | 21 | Regular |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2020 Chevrolet Blazer.
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Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
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FAQ
Does the 2020 Chevrolet Blazer have any recalls?
Yes. NHTSA lists 3 vehicle recalls for the 2020 Chevrolet Blazer. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 2020 Chevrolet Blazer problems?
Owners have filed 221 complaints with NHTSA. The most-reported areas are electrical (76), transmission & drivetrain (74), engine (70).
What gas mileage does the 2020 Chevrolet Blazer get?
EPA ratings run up to 24 mpg combined (2.0 L, Automatic 9-spd), across 5 engine and transmission combos.
Where can I get a 2020 Chevrolet Blazer repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.