CarRecallWatchThe 2020 Chevrolet Blazer has 3 safety recalls on file with NHTSA.
Owners have filed 224 complaints with NHTSA, including 5 crashes, 1 fire, 7 injuries.
The most-reported problem area is Electrical System (78 reports).
2020 Chevrolet Blazer recalls
Tires May Lose Air or Separate, Risking Loss of Control
Certain tires on these General Motors vehicles were cured for too long during production.
Missing Transmission Bolts Can Cause Oil Leaks, Fire Risk
Some vehicles may have missing bolts on the start/stop transmission accumulator endcap.
Curtain Airbag May Not Deploy Properly in a Crash
The diffuser on the roof-rail curtain airbag inflator may not have been crimped securely to the inflator.
Most common 2020 Chevrolet Blazer problems
Problem areas named in the 224 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Electrical System | 78 |
| Power Train | 75 |
| Engine | 71 |
| Unknown Or Other | 57 |
| Steering | 43 |
| Service Brakes | 10 |
| Lane Departure | 5 |
| Suspension | 4 |
| Vehicle Speed Control | 4 |
| Fuel/Propulsion System | 4 |
What owners report
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 pro
Warning on console âSteering Assist is Reduced Drive with Careâ 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
My 2020 Chevrolet Blazer experienced severe mechanical problems, including stuttering, loss of power, and the engine shutting off unexpectedly while I was driving. The vehicle subsequently would not operate normally. On February 25, 2026, Rick Hendrick Chevrolet Duluth performed a diagnostic inspection and recommended nearly $20,000 in repairs, including transmission-related repairs. However, the dealership did not identify or disclose any alternator fire damage or related electrical safety concerns. In October 2026, an independent mechanic discovered significant burn damage on the alternator. The damage was visible externally, and further inspection of the alternatorâs interior revealed
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 shou
The radiator and thermostat on my 2020 Blazer had to be replaced at less than 35,000 miles. It was out of warranty and the Chevy dealer charged me $3,500 to replace them. Internet sources state that this is a common problem with this car. I complained to Chevy corporate and they refunded $1,000. I do not feel this was a fair settlement due to the fact that it is a common problem.
2020 Chevrolet Blazer questions
Does the 2020 Chevrolet Blazer have any recalls?
Yes. NHTSA lists 3 safety recalls for the 2020 Chevrolet Blazer: Tires May Lose Air or Separate, Risking Loss of Control; Missing Transmission Bolts Can Cause Oil Leaks, Fire Risk; Curtain Airbag May Not Deploy Properly in a Crash. Recall repairs are normally free at an authorized dealer.
What are the most common problems with the 2020 Chevrolet Blazer?
Based on 224 owner complaints filed with NHTSA, the most-reported problem areas are Electrical System (78), Power Train (75), Engine (71).
How do I check if a recall on my 2020 Chevrolet Blazer has been fixed?
Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.