VehicleVerdict

2020 Chevrolet Blazer problems

Verdict · NHTSA data

One of the years to avoid

With 345 complaints filed to NHTSA — about 8.5 times the median Blazer year — the 2020 model ranks #10 of 46 Blazer years for complaint volume. It lands on the years-to-avoid list. Complainants reported 14 injuries in total across these filings.

No single system dominates the record — complaints spread across electrical system (71), transmission (70), and engine (69), which usually points to general build quality rather than one defect. In government crash testing it earned 5 of 5 NCAP stars overall.

345

NHTSA complaints

3

Recalls

0

Investigations

9

Crash-involved

0

Fires reported

14

Injuries

0

Deaths

5

NCAP overall · of 5 stars

How does 2020 compare to other Blazer years?

Blazer NHTSA complaints by model year, 2020 highlighted1,707 complaints1969: 0 complaints1972: 0 complaints1973: 1 complaints1974: 0 complaints1975: 0 complaints1976: 1 complaints1977: 2 complaints1978: 2 complaints1979: 1 complaints1980: 1 complaints1981: 1 complaints1982: 2 complaints1983: 8 complaints1984: 10 complaints1985: 35 complaints1986: 21 complaints1987: 38 complaints1988: 45 complaints1989: 47 complaints1990: 42 complaints1991: 267 complaints1992: 337 complaints1993: 616 complaints1994: 774 complaints1995: 1,707 complaints1996: 1,579 complaints1997: 1,098 complaints1998: 1,025 complaints1999: 612 complaints2000: 885 complaints2001: 464 complaints2002: 301 complaints2003: 103 complaints2004: 67 complaints2005: 18 complaints2006: 20 complaints2007: 11 complaints2008: 5 complaints2019: 287 complaints2020: 345 complaints2021: 191 complaints2022: 66 complaints2023: 58 complaints2024: 59 complaints2025: 39 complaints2026: 1 complaints
Blazer NHTSA complaints by model year, 2020 highlighted. Red bars are years to avoid.

See all Blazer years to avoid →

What are the most common 2020 Chevrolet Blazer problems?

ComponentComplaintsShare
Electrical System7121%
Transmission7020%
Engine6920%
Other5416%
Steering3911%
Brakes93%
Driver Assistance82%
Tires & Wheels62%
Fuel System51%
Suspension41%
Speed Control41%
Airbags21%
Body & Structure10%
Seats10%
Seat Belts10%
Lighting10%

Does the 2020 Chevrolet Blazer have recalls?

3 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

21V115000Tires & WheelsFebruary 25, 2021 · 33,838 units

Defect

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.

Consequence

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.

20V668000TransmissionOctober 29, 2020 · 194,105 units

Defect

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.

Consequence

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.

20V446000AirbagsJuly 30, 2020 · 769 units

Defect

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.

Consequence

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.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“The service advisor at the Chevrolet dealership denied a repair to my abs control module because it was a “known issue”. He told my wife and I our car is unsafe to drive And still wants to give it back to us. Other Gm vehicles have recalls open for the same issue one needs to be open for this.…”

Complaint filed with NHTSA · Electrical System · February 1, 2022

“Engine temp gauge stops working causing the air to stop working and the cooling fan to rev to highest rpm. Also a warning that the steering assist is reduced. Eng check light comes on with a code P0208. This a known problem with an extended service # (N242484760) but only if your vin is listed. All…”

Complaint filed with NHTSA · Transmission · May 27, 2026

“6/12/2024 In Damon Parking lot in Rochester MN. Going less than 10 miles an hr- cars in front of me and behind me looking for a parking spot. Stop and go at times. Went to turn corner to go from one level to the next and my BLAZER took off "like a bullet". No control over accelerated speed- hit…”

Complaint filed with NHTSA · Engine · June 12, 2024 · crash

“6/12/2024 In Damon Parking lot in Rochester MN. Going less than 10 miles an hr- cars in front of me and behind me looking for a parking spot. Stop and go at times. Went to turn corner to go from one level to the next and my BLAZER took off "like a bullet". No control over accelerated speed- hit…”

Complaint filed with NHTSA · Other · June 12, 2024 · crash

“P0128 code produced when scanned. Cooling fans on high. No ac. Steering Assist Warning. Had to replace the thermostat. ECM also replaced and caused the tire pressure sensors to fail and had to replace the tire sensors. There is a recall on models 2021 to 2025 but none on the 2020 for the…”

Complaint filed with NHTSA · Steering · May 1, 2026

2020 Chevrolet Blazer — common questions

Is the 2020 Chevrolet Blazer reliable?

NHTSA data argues against it: 345 complaints put the 2020 model at #10 of 46 Blazer years. It is one of the Blazer years to avoid.

What are the most common 2020 Blazer problems?

According to NHTSA complaint data, the leading problem areas are electrical system (71 complaints), transmission (70 complaints), engine (69 complaints).

Does the 2020 Chevrolet Blazer have recalls?

Yes — NHTSA lists 3 recall campaigns affecting the 2020 Chevrolet Blazer. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Which Chevrolet Blazer years should you avoid?

Based on complaint rates and open investigations, the Blazer years to avoid are 1995, 1996, 1997, 1998, 2000, 1994, 1993, 1999, 2001, 2020, 1992, 2002, 2019, 1991, 2021, 2003, 2004, 2022. The cleanest record among Blazer years belongs to 1975.

How safe is the 2020 Chevrolet Blazer?

In NHTSA's NCAP crash testing, the 2020 Chevrolet Blazer earned an overall rating of 5 out of 5 stars.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.