Vehicle Data Hub

2020 Chevrolet Blazer problems

NHTSA has received 372 complaints about the 2020 Chevrolet Blazer, and 21% of them involve electrical system. After that come drivetrain & axles (20%) and engine (20%).

At a glance

Complaints
372 filed with NHTSA
Most reported
Electrical system 21% of complaints
Crashes and fires
9 and 1
Injuries and deaths
14 and 0
Typical mileage
49,000 miles 49 complaints with mileage

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

When problems show up

Complaints by mileage, 2020 Chevrolet Blazer Complaints by odometer reading in 20,000-mile steps. The median is about 49,000 miles. 0k to 20k miles: 18 complaints 20k to 40k miles: 4 complaints 40k to 60k miles: 9 complaints 60k to 80k miles: 10 complaints 80k to 100k miles: 5 complaints 100k to 120k miles: 1 complaints 120k to 140k miles: 1 complaints 140k to 160k miles: 1 complaints 160k to 180k miles: 0 complaints 180k to 200k miles: 0 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 49,000 miles
Based on 49 complaints that include mileage. 63% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles18
20k to 40k miles4
40k to 60k miles9
60k to 80k miles10
80k to 100k miles5
100k to 120k miles1
120k to 140k miles1
140k to 160k miles1
160k to 180k miles0
180k to 200k miles0
200k+ miles0

What the data shows

Among the 49 complaints that report mileage, the typical (median) problem appeared at about 49,000 miles.

Safety-related details: 9 complaints mention a crash; 1 complaint mentions a fire; 14 injuries reported. Its complaints are less severe on average than those of 80% of model years in our database.

Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2020 ranks 10th most-complained-about out of 22 model years of the Chevrolet Blazer with enough data (281 complaints in that window). It is also covered by 3 safety recall campaigns.

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

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 outer cement wall and slammed into 2 parked empty SUVS. Could not go any farther. The 2 SUVs slammed into cement wall in front of them. Injuries to both my passenger and myself.

June 2024 CrashInjury

After driving the vehicle for random periods of time and at random speeds, all the TPMS sensors will give alarms and then register as dashes on the dashboard. It gives alarms for each tire as each tire goes out until all of them go out. They will reset after a random period of time and start to show the pressure again.

Reported at 10,500 miles, February 2021

In 2 occasions my vehicle came to a complete stop and turned off on me. I was thinking it was a safety feature but after the 2nd time I was concerned. Took it to dealership and they found nothing wrong with it. On another occasion I was leaving my house when my steering wheel got super hard and made it very difficult for me to turn the wheel. Took it to dealership and they found nothing wrong, according to them truck was perfectly fine.

Reported at 6,000 miles, December 2020

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