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.

- Virginia City, NV, USA

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.

- Simpsonville, SC, USA

While driving with the lane departure system on and cruise control on, the vehicle would unexpectedly brake for no reason. This happened several times. With lane departure system on and cruise control off, the vehicle would occasionally give a "brake now" warning for no reason. Dealer claims that the issue has been corrected but it is unknown if this is correct.

- Simpsonville, SC, USA

Severe pulsation of braking system after only 6000 miles. Dealer resurfaced warped rear rotors. At 10080 miles the same problem has come back and car is being repaired again.

- West Palm Beach, FL, USA

I was driving on a highway and I wanted to slow my car down because I was approaching a construction area. When I applied the brakes the break pedal went right down to the floor. This total break failure did not allow me to stop my car.

- Edison, NJ, USA

Brakes locking car would not stop

- Stockron, CA, USA

Brake noise: Brakes make a loud thumping/knocking noise when I step off the brake to start crawling from a complete stop in 'drive' mode (I.e. at a red light or stop sign). Here are videos which demonstrate this. This happens very frequently and is loud. And in rare occasions, the brakes make a squealing noise. Overall, the brakes are working (e.g. I can use them to stop fine) but these issues are frequent enough that it's concerning, irritating and really, just completely embarrassing to drive with such a high-end brand. Please see the videos below which highlight these noises. I noticed it also happens when I'm shifting around from park/reverse/drive when I'm the parking lot (sounds like the car is regurgitating). Again, this is very concerning (I.e. is the brake going to give out some time without me knowing), annoying to hear/feel, and quite embarrassing as my passengers as well as folks outside my car can hear it. I feel it's unacceptable for such a new car. Any suggestions​ on what I should do" has anything come back from service bulletins or the engineers in California" I noticed some tsb's related to the brakes. (1) brake noise - March 5th: Https://goo.gl/photos/cm1Q4bfybjnkbsxu9 (2) brake noise - March 6th: Https://goo.gl/photos/cc5glrdq1vhbtwni7

- Downers Grove, IL, USA

Vehicle shakes at high speed when the break is applied. Cause by rotor warping. The deal had re-surface the rotor and replaced break pad one already. But it still does same thing.

- West Covina, CA, USA