2020 Chevrolet Blazer Reliability Data: Problems & Recalls
Avoid The 2020 Chevrolet Blazer has 219 NHTSA complaints, a complaint index of 100, and ranks worst of all 11 model years, earning an Avoid verdict. Electrical System issues lead at 35% of complaints, with Engine and Transmission close behind, plus 3 recalls.
Based on NHTSA complaints per model-year, not a reliability rating. Methodology
YearToAvoid Scorecard
- Complaint Index
- 100/100
- #1 of 11 Blazer years
- Verdict
- Avoid
- vs. other years of this model
- Complaints
- 219
- unique NHTSA reports
- Recalls
- 3
- distinct NHTSA campaigns
- Crashes
- 5
- reported in complaints
- Fires
- 0
- Injuries
- 7
- Top issue
- Electrical System
- NHTSA overall rating
- 5 / 5 ★
- EPA combined MPG
- 23
- 21 city / 27 hwy
- Injuries / deaths
- 7 / 0
Top 2020 Chevy Blazer problems
Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.
- Electrical System76 (35%)
- Engine74 (34%)
- Transmission & Powertrain73 (33%)
- Other57 (26%)
- Steering41 (19%)
- Brakes11 (5%)
- Suspension, Wheels & Tires8 (4%)
- Fuel System5 (2%)
- Lane Departure5 (2%)
- Airbags3 (1%)
A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.
What owners report
- Automatic transmission suddenly jolts forward with an RPM spike and check engine light during normal acceleration from a stop.
- Tire pressure monitoring sensors falsely alarm for each tire in turn, showing dashes on the dashboard before resetting on their own.
- Vehicle overheats and leaks oil while driving at low speed, triggering multiple warning lights and requiring a tow.
- Rearview and backup cameras go black intermittently, and the vehicle hesitates or refuses to accelerate out of a stopped position.
- Engine makes an abnormal noise, illuminates the check engine light, and the vehicle stops operating while driving around 30 mph.
- A front wheel locks up and suspension is damaged after something comes loose internally while driving around 35 mph.
2020 Chevrolet Blazer recalls
3 NHTSA recall campaigns list this model year.
- NHTSA 21V115000Feb 25, 2021Suspension, Wheels & Tires33,838 vehicles
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.
Risk: 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.
Remedy: GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.
- NHTSA 20V668000Oct 29, 2020Transmission & Powertrain194,105 vehicles
Power train:automatic transmission
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.
Risk: 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.
Remedy: 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. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313440.
- NHTSA 20V446000Jul 30, 2020Airbags769 vehicles
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.
Risk: If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.
Remedy: GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.
2020 Chevrolet Blazer fuel economy and fuel cost
- City
- 21 MPG
- Highway
- 27 MPG
- Combined
- 23 MPG
- Annual fuel cost (EPA)
- $2,800
- 15,000 mi/yr
- Fuel
- Regular
- Current regular gas
- $4.32/gal
- national avg.
EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.
2020 compared with other Blazer years
Frequently asked questions
- Is the 2020 Chevrolet Blazer reliable?
- Compared with other Blazer model years, the 2020 ranks worst, with 219 complaints and a complaint index of 100, giving it an Avoid verdict.
- What are the most common problems with the 2020 Chevrolet Blazer?
- NHTSA complaints show Electrical System issues lead at 35% of complaints, followed by Engine at 34% and Transmission & Powertrain at 33%.
- Does the 2020 Chevrolet Blazer have any recalls?
- NHTSA lists 3 recalls for the 2020 Blazer, covering suspension/tires, transmission start-stop accumulator bolts, and airbag inflator modules. None are do-not-drive recalls.
- What year Chevrolet Blazer should I avoid?
- The 2020, 2019, and 2021 model years all carry an Avoid verdict, with 2020 ranking worst among all 11 years covered by the data.
- At what mileage do 2020 Blazer problems typically appear?
- Median mileage at failure varies by system: Electrical System issues appear around 38,000 miles, Transmission & Powertrain around 50,000 miles, and Engine issues around 70,000 miles.