Cruise Control problems of the 2016 Honda Civic

When driving the car in certain situations the car will momentarily apply the brakes automatically rather hard for a period of a second or less. This occurs when on a highway and driving with the adaptive cruise control engaged and when passing a tractor trailer truck. It appears to happen only under certain situations such as sunlight angle and the color or reflection from the truck are interfering with the cars sensing brakes can also be automatically applied rather hard when exiting a highway ramp without using a turn signal. This can happen without the adaptive cruise control applied so I suspect it is related to the collision avoidance feature. I have owned this car since new and these events have occurred more then a dozen times. On a trip driving from florida to pennsylvania on rt 95 it happened about 5 times. Very frightening to have the brakes applied spontaneously at 70 miles/hr when passing a truck. I have asked about this during service at a Honda dealer and they reported everything was working properly.

The vehicle cruise control picks up speed when going down hill. The Honda dealership stated that the vehicle is a base model and does not have adaptive cruise control, therefore, according to them, is working as designed. The "design" has a serious safety flaw as the driver must constantly be aware of the terrain and speed of the vehicle which seems to negate the use of a cruise control. I experienced several frightening situations while on a road trip from yellowstone national park to seattle this summer. The car was gaining as much as 20-30 mph on steep, mountainous terrain resulting in dangerous speeds. I discontinued use thinking that this "feature" was malfunctioning. I can not believe the dealer's response that the cruise control was working as designed is in the interest of public safety or the truth. I was left with no other recourse but to file this report.

Adaptive cruise control does not break car when car ahead slows. System throws 'collision braking mitigation system', 'lane keeping assist', and 'adaptive cruise control' warnings. Dealer has attempted to repair without success.

Computer system had a major malfunction, triggering 6 different warnings, and an audible message to immediately pull over and park the vehicle and have a dealer inspect the vehicle. This happened after filling up the vehicle with gas. My family was in the vehicle with the car in accessory mode, listening to the radio. After finishing up fueling, about five minutes later, I returned to the vehicle. I got in, shut the door, put my foot on the brake, pressed the button to start the vehicle, put on my seat belt, and then saw the messages. After a few minutes with the car on and reading the messages, a voice started to talk and tell me, to stop the vehicle, park it, and have a dealer look at it. The 6 messages on the center display said various things. Such as they were titled: adaptive cruise control problem the pressure monitor system cmbs problems anti-lock brake system problem tire pressure low brake system problem the alarming number of problems about the brake system alone, tells me this vehicle should not be driven. Combine that with the audiable message about pulling over and parking the vehicle, no one in their right mind is going to drive it until it is properly looked at. The dealer did look at it, and said it was the vsa modulator, and needed to be replaced. However, there is case after case of this not fixing the problem found online. Yet people and their families, including mine are being sent back onto the road in these vehicles of which Honda has not and cannot provide a fix for because it, itself does not know what the problem is. Any therefore no one knows if their car is crying wolf, and just waiting to kill them. I don't want my car if I can't trust it. I just can"t wager my families lives on that. They are willing to tell us to drive around in the vehicle even before the first repair is tried. The errors are related to brakes.

When the adaptive cruise control (acc) and the vehicle lane keeping assist system (lkas) are engaged simultaneously, the vehicle will react unpredictably under certain conditions. The vehicle may brake suddenly, rapidly decelerate, and quickly depart the highway when approaching exit ramps. The situation occurs during daylight and nighttime hours with clean cameras and radar window. Driver response time is too slow to counteract the event. The vehicle may slow by 10-15 mph and depart the highway before the driver is able to resume control. During 300 miles of highway driving, the vehicle did this twice. A rear end collision was narrowly avoided in one case.