I recently traded up from a 2007 LS 460 to a 2016 LS 460. This new car has the radar controlled cruise control on it. I use it primarily while driving in town because of all the dumb drivers. It has worked great. However, yesterday I was behind a car that kept breaking in front of me and the radar cruise did exactly as it had been designed to do. However, on the last occurance the car in front of me was turning. Normally it takes way too long for the car to accelerate back to the cruising speed so I help it out a little by pressing the accelerator manually (without cancelling the cruise control). When I did this yesterday the vehicle accelerated just fine, but when I got to about 6-7mph from the set cruise speed I let up on the accelerator to allow the car to achieve the set cruise speed on its own. However, once the cruise speed was achieved the car continued to accelerate on its own. I had the cruise set to 48mph in a 40mph speed zone. I finally had to cancel the cruise setting manually when the car reached 60mph. When I resumed the setting the car began slowing down and resumed the 48mph set cruising speed with no further issue.
Has anyone else experienced this? The car barely has 18,000 miles on it and is still under factory warranty. Should I be taking this to a dealership, or is it just a fluke?
