NHTSA Complaint #10839234 — 2015 BMW I3

THE ACC (ACTIVE CRUISE CONTROL) SURPRISINGLY STOPS WORKING WHEN FACING A BRIGHT SUN. THIS HAPPENS OFTEN, BUT IT TOOK ME A WHILE TO UNDERSTAND WHAT WAS HAPPENING. IT IS VERY DANGEROUS AT HIGH SPEEDS IF SOMEONE IS BEHIND ME. WHEN THE SUN HITS THE CAMERA, THE ACC SHUTS DOWN (WITH A WARNING ON THE SCREEN) AND THE REGEN BRAKING SYSTEM KICKS IN CAUSING THE CAR TO SLOW DOWN MUCH MORE THAN COASTING. I HAVE BEEN TOLD THAT THE BRAKE LIGHTS GO ON, BUT IF A CAR IS FOLLOWING AND TRAFFIC CONDITIONS DO NOT SUGGEST THAT OUR CAR SHOULD BE BRAKING, THE CAR COULD REAR END US. THE I3 ONLY HAS A CAMERA TO RUN THE ACC. IN OTHER CARS, THERE ARE BOTH CAMERAS AND RADAR. OUR 2011 MKX HAS AN INTELLIGENT CC AND IT NEVER CUTS OUT BECAUSE, I HAVE BEEN TOLD, IT USES RADAR. I HAVE FOUND SEVERAL POSTS ON THE INTERNET WITH OTHER DRIVERS HAVING SIMILAR SUCH PROBLEMS - HERE IS ONE. HTTP://WWW.MYBMWI3.COM/FORUM/VIEWTOPIC.PHP?F=15&T=3059 OF COURSE, I CAN AVOID THIS PROBLEM BY NOT USING THE ACC, BUT IT IS ONE OF THE OPTIONS I WANTED AND PAID FOR ON THE I3. WE HAVE NOT BEEN IN AN ACCIDENT THANKFULLY, BUT PERHAPS OTHERS HAVE. OTHER THAN THIS VERY DANGEROUS SITUATION, THE I3 IS A SUPERB CAR.