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9.3

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
1,391 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2020 Chevrolet Blazer electrical problems

electrical problem

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2020 Chevrolet Blazer Owner Comments

problem #14

Aug 172023

Blazer

  • miles

A D V E R T I S E M E N T S

Esc message on dashboard & all wheel drive disabled & lane assist traction control liggt turns on & parking brake light turns on while driving caused for my electric component to act all crazy including my sunroof I-??ve been in the dealer over over try to fix it and that is concerning reason for my safety while u are driving and all those lights come on And yes I have took it to the dealer multiple times to fix this situation And yes the vehicle has been inspected by the manufacturer And yes it has happen before i have a 1 year with the car the problem first came about couple month after I got the car and been having problem since then I bought the car 5/13/23

- Waterbury, CT, USA

problem #13

Apr 232024

Blazer

  • miles
We have a 2020 Blazer that will occasionally show "Shift to Park" error message and won't allow us to turn off the motor. Searching this issue, we see many people have the same problem and GM makes us pay to repair the problem.The dealer said the shift control module had to be replaced. It cost us almost $300 to repair. GM Service Bulletin No.: 19-NA-206 has been issued but no recall has been issued by NHTSA. There are also several lawsuits filed but we have been unable to see the results of those lawsuits. Please make GM pay and/or reimburse for these repairs. We live in Wiscons

- Rhinelander, WI, USA

problem #12

Jan 242024

Blazer

  • miles
The valve on the thermostat stuck open causing the vehicle to go into a default mode. Ramping the radiator to full high and the thermostat will not come off of C. It has caused an issue with the A/C not blowing cold and also causes a message to pop up upon starting the vehicle stating that steering assistance is reduced, drive with caution. Upon doing research, thousands of people have had this similar issue with different model chevys as well. And the part is on the back side of the engine so injectors and air intakes have to be removed to preform any work to a $100 part.

- Huffman, TX, USA

problem #11

Mar 012023

Blazer

  • miles

A D V E R T I S E M E N T S

Transmission skips while driving, there-??s some sort of glitch with the electrical that causes the steering assist to shut down and the fan to over work, like it would if it were over heating but the temp of normal.

- Ontario, CA, USA

problem #10

Jul 012023

Blazer

  • miles
Unknown car will not shift into park without me having to re-shift to park and then the vehicle will shut off after re-shifting.

- Pheba, MS, USA

problem #9

Jul 132023

Blazer

  • miles
Rearview mirror camera failed causing rearview mirror monitor to fail creating a blind spot while trying to back up. When i went back to visually inspect the camera assembly nothing looked damaged and when i physically touched the camera it was extremely hot to the touch to the point of burning my finger tip.

- Fridley, MN, USA

problem #8

Jan 102023

Blazer

  • miles

A D V E R T I S E M E N T S

Value stem gasket covers need replacing oil spilling out everywhere it-??s a 2020 should not be happening Oil leak Hot and cold temperature not working properly A warning flashing for the power steering being deceased and not use That car get moved every hour just about always in jt working or just taking a break The auto shut of makes transmission slip or sounds like it

- Waynesboro, GA, USA

problem #7

Oct 192022

Blazer

  • miles
My vehicle idiot lights were flashing and the car felt as if it was going to stall on the road. Dealer said it was a faulty P6. Now when driving the car the entertainment unit locked up. Radio could not be changed, volume lowered. Pedals on steering column don't work. Even when car was shut off the radio still played and would cut off. Called my dealership. The earliest my Chevy dealer can look at it is next week.

- West Columbia, SC, USA

problem #6

Aug 082022

Blazer

  • miles
Shift to park displays despite being in park. I cannot turn off the car or lock the doors.

- Orlando, FL, USA

problem #5

Feb 012022

Blazer

  • miles
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. Abs lights and multiple others no brakes or random braking.

- Seffner, FL, USA

problem #4

May 032021

Blazer

  • 8,665 miles

A D V E R T I S E M E N T S

Rearview camera and back up camera constantly not functioning and going black while and motion or backing up. Car acts like there is something in front of it (like a wall) on certain roads and does not want to accelerate to turn/pull out from a stopped position. I have had this vehicle for 2 months. I have had a car prior to this that did this before and stopped and left me stranded on a busy road and caused an accident. I can't believe this car is acting like this!

- Lititz, PA, USA

problem #3

Sep 072020

Blazer

  • 300 miles
The contact owns a 2020 Chevrolet Blazer. The contact stated while driving 20 mph, the vehicle started overheating. The contact then drove the vehicle to the side of the road and noticed that the vehicle was leaking oil. The vehicle was then towed to an unknown dealer. The contact stated that several unknown warning lights were illuminated. The vehicle was taken to Chevrolet of columbus (2825 merchant mile, columbus, in 47201) where it was diagnosed with rodent damage to the wiring harness. The vehicle was not repaired. The manufacturer had been informed of the failure and informed the contact that the expenses would not be covered even though the vehicle was under warranty. The failure mileage was approximately 300.

- Brownstown, IN, USA

problem #2

Feb 012021

Blazer

  • 10,500 miles
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.

- Waycross, GA, USA

problem #1

Jan 042021

Blazer

  • 3 miles
Twice while I have been driving the instrument panel went blank. In motion.

- Davison, MI, USA

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