What 134 owners told NHTSA about the 2021 Honda Civic Si

Cruise control does not disengage upon electronic parking brake being engaged while moving, causing the car to accelerate aggressively after the brake is released. While it does disengage after enough speed is lost, it should disengage immediately as it does when the brake pedal is tapped

NHTSA ODI 11745360

The contact owns a 2021 Honda Civic. The contact stated that while driving approximately 37 MPH, the vehicle stalled. The check engine, master cylinder, and adaptive cruise control warning lights were illuminated. The vehicle was taken to a dealer, where it was diagnosed and determined that the brake master cylinder, fuel pump, and ignition coils needed to be replaced. The contact researched and was made aware of an unknown recall; however, the VIN was not under recall. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 108,000.

NHTSA ODI 11709926

Driving down the highway about 70 mph and it started to rain so little that I had not even needed the wipers yet. Then out of nowhere with absolutely no warning what so ever the breaks locked up and the car began to slide and was completely unresponsive to any solution possible. The steering wheel was locked in place and the break peddle was so far to the floor I was not able to reach it. After colliding with the propane delivery truck which I was unable to see due to passanger side airbags which inflated unnecessarily with no passanger in the vehicle. After finally coming to a stop I was going to try and catch my breath while I gather my thoughts but unfortunately it was not possible due to the unimaginable amount of smoke that came from the driver airbag in the steering wheel. I jumped out not sure if it was on fire and assessed the situation and learned that the smoke was just coming from the steering wheel so I did my best to get it out. Which took bottles of water poured into the office steering wheel to stop the cap smoking.

NHTSA ODI 11523210

was in reverse backing into parking spot. my foot was on the break; however, the car accelerated rapidly resulting in hitting a post. there were no warnings that registered took it to Honda and reported, they indicated they were not aware of this issue and did not run diagnostics as requested

NHTSA ODI 11464241

MANY times I've pressed the gas after a full stop and had the engine roar in response while the car only moved forward a few feet rather than at full speed. My life is in danger if I'm trying to make a turn across traffic when I have a space to do so and I CAN'T make the turn SAFELY because the car has "stalled" by not moving forward quickly after I let go of the brakes. It's a brand new car, and I took it to Honda. They said they couldn't replicate the incident. Since it happens sporadically, I have no idea what causes it but I DO know that it's VERY dangerous. Another issue happens when I'm driving in cruise control. Another car is in a turning lane, and my car will slow down abruptly. The car is in the NEXT lane, not in my lane, so having my car suddenly slow down is very dangerous as I can get rear ended. Again, this is dangerous.

NHTSA ODI 11454186

The contact owns a 2021 Honda Civic. The contact stated that while driving at 50 MPH, the vehicle inadvertently decelerated. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 200.

NHTSA ODI 11450184