One problem related to adaptive cruise control has been reported for the 2020 Chevrolet Blazer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Chevrolet Blazer based on all problems reported for the 2020 Blazer.
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!.