Adaptive Cruise Control problems of the 2017 Acura RDX

While driving, all adas and emmision system malfunctioned and went offline (errors appear on main control panel and these features were no longer working). Fortunately, the car was otherwise still drivable without these features. It was brought to a local Acura dealer and they performed a software update which fixed the problem (at least so far after a week of driving).

The contact owned a 2017 Acura Rdx. The contact stated that while she was driving, the adaptive cruise control was set to 25 mph, when she depressed on the brake pedal at the stoplight, but the brakes failed to respond, which resulted in her vehicle rear-ending six other vehicles. The air bags deployed. Medical attention was required as the contact and her husband were taken to the hospital for the injuries sustained. The contact believed one of the driver, was also taken to the hospital, but she was uncertain. A police report was filed. The vehicle was towed to a towing lot and the contact deemed the vehicle totaled. The contact stated that after reviewing the vehicle's manual, she learned that the adaptive cruise control has limited braking capabilities and would automatically cancel if the speed drops below 22 mph. The dealer and manufacturer were not made aware of the failure. The failure mileage was 18,000.

While using the cruise control, vehicle will automatically slam on the brakes without reason. This typically occurs on highway where vehicle will automatically brake reducing speed dramatically. Vehicle will go from 70mph to 55 mph in a few seconds causing the vehicles behind to have to brake fast to avoid collision. Acura has worked on vehicle 4 times and claims they cannot fix the system. I was told to hold my foot over the accelerator to increase speed when this happens. They also told me that they are very aware of this problem but offered no correction for this unsafe condition. It has happened at least 100 times. Vehicle is 4 years old with 7,000 miles.