Adaptive Cruise Control problems of the 2023 Honda Civic

Phantom braking when there is no cars or anything on the road. The car would immediately brake out no where. It could cause an accident randomly braking when using cruise control.

I get a random warning that is an issue with the braking system and the brake light comes on. The lane departure and cruise control is shut off while the vehicle is in motion. There is a sudden and unexpected drop in speed when the cruise control is shut off by the vehicle. The vehicle remains operable without the systems activated the warnings go away after restarting.

At around 15k miles I started having an issue where my steering wheel would stick at an angle. Almost like it was stopped and shut off. As I would attempt to turn the wheel from left to right it would get semi stuck and you’d have to force it to break it free. This had happened numerous times and is an issue with the 11th gen si. The power steering rack and pinion were replaced under warranty after taking the car in multiple times and them claiming they never could replicate the issue. However, they replaced it with the same part so the issue will come back. During the time before replacement it got stuck and I had to pull hard to avoid hitting a car, barriers on freeway 99, flying off a cliff, and avoid driving off the road.

Under multiple conditions, both intercity highways and two-lane country highways the cars adaptive cruise control with randomly slowdown/brakes extremely hard. In one specific instance I was driving home in the middle of the night with a vehicle behind me and with no other oncoming traffic or cars in passing lanes and the adaptive cruise "brake checked" the car behind me, I was able to react and cancel the adaptive cruise and avoid an accident. When adaptive cruise is set it will also aggressively approach the car in front, instead of gradually slowing down it will continue at the set speed until the car realizes it's to close and will slam on the brakes to slow down. When adaptive cruise is turned off the car will slam on the brakes if you attempt to accelerate to pass someone and coast back to set speed. In other words, the car will slam on the brakes to resume the set cruise speed. Fortunately, no cars have been behind me when this has happened. Nowhere does it say that this will happen when using normal cruise control? speeds and conditions varied from city traffic going 20 - 40 mph, the highway going 55-65 and the interstate going 70-80 mph. Some instances were at night others were during the day.