NHTSA lists 3 safety recalls and 224 owner complaints for the 2020 Chevrolet Blazer. Most complaints involve electrical system (78) and power train (75). The EPA rates it 21–24 mpg combined, and NHTSA gives it 5 stars overall.
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.
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.
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.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Complaints for each Blazer model year we’ve synced.
| Model year | NHTSA complaints |
|---|---|
| 1996 | 1,161 |
| 1997 | 774 |
| 1998 | 734 |
| 1999 | 442 |
| 2000 | 600 |
| 2001 | 331 |
| 2002 | 259 |
| 2003 | 104 |
| 2004 | 50 |
| 2005 | 15 |
| 2019 | 190 |
| 2020 | 224 |
| 2021 | 142 |
| 2022 | 55 |
| 2023 | 44 |
| 2024 | 133 |
| 2025 | 56 |
| 2026 | 1 |
“Warning on console “Steering Assist is Reduced Drive with Care” and radiator fan turns on right away at full speed.. this has been reported in similar models and years.. but does not include this particular vehicle year and VIN”
“2020 Chevy Blazer LT 3.6 L V6 I'm filing this complaint regarding multiple concerning mechanical and safety related issues with my 2020 Chevy Blazer LT that I purchased brand new and currently have 54,224 miles . Without warning, My vehicle developed several problems simultaneously. The check engine light came on, The engine cooling fan started running continuously at high speed, the AC stopped blowing cold air and is warm air, the steering assist reduced came on and my chevy app notified me that I have an engine cooling system malfunction and to service now. It's showing a P0128 code when I had it checked. After doing some research, I discovered GM issued a thermostat special coverage program for certain vehicles 2021-and newer models. Mine isn't part of it because of the year and isn't covered by the power train warranty for the same reason even though they all have the same engine. I only have 54,000 miles! I'm very concerned over the steering assist being reduced! What if the steering goes out while I'm driving? I have my grandchildren all the time. I need my car! There are several other complaints on here for the same vehicle and the same problem! Why…”
“The thermostat is malfunctioning along with engine temperature coolant sensor. This causes the temperature gauge on the dashboard to be completely disabled and not moving off cold, it disables the air conditioner, makes the engine cooling fan to run extremely high nonstop, and places the vehicle into an unpredictable limp mode or fail safe mode. This was identified as faulty by GM and they have issued a special service bulletin that they will repair it up to a 150,000 miles or 15 years or reimburse customers up to $1200 on 2021 models. The 2020 models use the same engine and parts but they refuse to include them which is an unfair exclusion since they admitted to a faulty part. 2020 should be included with the same 150,000 miles and 15 year coverage or reimbursement.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Blazer FWD Auto 9-spd, 4 cyl, 2.0 L, Turbo · Front-Wheel Drive | 21 | 28 | 24 | $2,600 | 362 |
| Blazer AWD Auto 9-spd, 4 cyl, 2.0 L, Turbo · All-Wheel Drive | 21 | 27 | 23 | $2,700 | 374 |
| Blazer FWD Auto 9-spd, 4 cyl, 2.5 L · Front-Wheel Drive | 21 | 27 | 23 | $2,700 | 382 |
| Blazer AWD Auto 9-spd, 6 cyl, 3.6 L · All-Wheel Drive | 18 | 25 | 21 | $2,950 | 433 |
| Blazer FWD Auto 9-spd, 6 cyl, 3.6 L · Front-Wheel Drive | 19 | 26 | 21 | $2,950 | 414 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
3 safety recalls as of Nov 10, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 224 complaints with NHTSA. The most-cited components are electrical system (78), power train (75), engine (71). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2020 Chevrolet Blazer at 21–24 mpg combined, depending on engine and drivetrain (5 versions rated).
NHTSA's New Car Assessment Program gives the 2020 Chevrolet Blazer 5 out of 5 stars overall.