Forward Collision Avoidance Related Problems of the 2020 Chevrolet Blazer

Table 1 shows two common forward collision avoidance related problems of the 2020 Chevrolet Blazer.

Table 1. Forward Collision Avoidance related problems of Chevrolet Blazer

Problem Category Number of Problems
Adaptive Cruise Control problems
1
Automatic Emergency Braking problems
1

Adaptive Cruise Control problem #1

Thermostat is faulty at 55k miles. Purchased 2020 Blazer rs, certified used from chevy in October 2023. Less than 1 yr later, thermostat is stuck on cold, no ax or heat, drivers assist reduced notice. Same issues as previous documented complaints. The frustration is why this known issue is not covered under warranty or recall! I just had my 50k maintenance service done while this issue was occurring- service told me “well we cleared the codes” , 2 days later check engine is on, temp stuck on cold, fan is over worked and no a/c or heat- and driver assist turns off. The safety issues around causing more engine damage by improper cooling and reduction of driving assistance. Additionally, parking issue with vehicle not recognizing it’s in park and having to wiggle or jam the shifter- car drains battery and won’t lock until resolved. Car is took expensive to have a $1200 replacement not covered under warranty!.

Automatic Emergency Braking problem #2

I backed my vehicle out of the garage and put it in park and stepped out of the driver's door. I was going to put my son in his car seat in the rear seat when the vehicle started moving backwards and the opened driver's door knocked us down. I was able to push my son out of the way, but the vehicle continued and the front left tire rolled over both of my legs. The vehicle continued in reverse along the driveway, struck a trash container and went up the incline at the main road. It crossed a busy two lane road and into my neighbors yard. The vehicle came to a stop about 10 feet from our neighbor's house without striking anything else. We purchased this car used with just under 300 mile on it. During the time that we've owned it, it has randomly flashed a "shift to park" warning lamp on the dash when I shift it to park and turn it off. It has never done what happened to me today. A few months ago, my husband and I took the car to the gm dealership to have it checked out before the warranty expired. We told them about the "shift to park" warning lamp and that the car was shifting hard while driving it. They kept the car a few days and told us they were unable to find anything wrong with it.


Forward Collision Avoidance related problems in other Chevrolet Blazer model year vehicles:



Blazer Service Bulletins
Blazer Safety Recalls
Blazer Defect Investigations