Six problems related to adaptive cruise control have been reported for the 2021 Honda Civic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 Honda Civic based on all problems reported for the 2021 Civic.
Steering wheel sticks once at highway speed, wheel turns but with a glitch.
The front sensor is too sensitive. If there is another car using a turn lane, the Civic will try to brake and will not pass the car. If another car is ahead on a curve, the automatic braking kicks in. This tends to only happen when using cruise control. It is dangerous on the freeway. The sudden braking could cause me to be rearended. I've been lucky, so far, and have only received dirty looks from the drivers that were behind me as they passed. Since it doesn't happen every single time, there seems no way to reproduce it. No one has inspected it for defects. No warning lights, beeps or messages appear before the braking starts. This has been happening since I first bought the car in 2022, but seems to be more frequent now. Probably the reason it was returned. . . In my opinion.
Driving down the road sunny, dry roads, no vehicles around, car starts flashing brake and slams on break has happened 3 or 4 times. Also, diver assist warning lights keep coming on with radar obstructed. Honda please do something about this before someone gets hurt. I am a single mother and loved this car until recently. I don't have the money to pay the dealership to run diagnostics and lie and say they don't know what's wrong because they cant make it happen again.
What is going down the highway and my car almost went into oncoming traffic.
Driving home from work. Cruise set at 73mph. I had just passed another car and was about 600 yrd in front of them on the pkwy, when the car just started breaking and ding, I get multiple warnings on the dash as I'm trying to get out of the way of other vehicles. The car drove normal the next 5 miles under my control but the dash is still lit with a collision mitigation system problem, adaptive cruise control problem, road departure mitigations system problem, drive carefully systems initializing problem, brakes system light. I'll note that there was not bad weather, there was no rain or snow. It was 80f. There was no impact, accident, etc.
Car will randomly hit the brakes when adaptive cruise control is on. It will hit the brakes even though it doesn’t detect anyone in front, it will slow down a good 10-15mph before speeding back up.
| Automatic Emergency Braking problems | |
| Adaptive Cruise Control problems | |
| Warnings problems |