Cruise Control problems of the 2015 Tesla Model S

The main screen stays blank and the backup camera does not work. All controls that were on the main touch screen do not function include safety features such and adaptive cruise control and emergency breaking.

After we returned from our summer home, I tried to drive the Tesla. The main screen did not light up but I figured that a normal reset would fix the problem. As I drove, I attempted a reset but the screen remained black. I also learned that the turn signals would not work including the cruise control, windsheild wipers and headlight high beams. Worried about other problems, I returned home and have not driven the car since. Over the summer there had been several updates to the cars firmware and I was looking forward to the improvements. Prior to that. We were driving with other members of the family, all with the Tesla app on their phones. The car went into "limp home" mode on I-95 and would not respond to numerous attempts to remedy the problem. The seat heaters would turn on and off, the doors would unlock and the entire car seemed to have a mind of it's own. I asked everyone to turn off their phones and the problem disappeared. Tesla service said they'd never heard of such a thing.

This complaint is about Tesla's first generation media control unit (mcu). The mcu is the brains of the car and control the big center screen that the Tesla Model S is known for. When it failed not only did I lose the ability to use this big screen but I also lost key safety items signals, backup camera, cruise control, automatic breaking, and auto pilot. All the sound features are also disengaged as well and this was evident in the lack of sound for the turn signal as well as the lack of sound for the alert if your seatbelt is undone. Specifically in regards to the turn signal for example if you put the turn signal down to as if you are turning left the nob will lock into the down position leading you to believe your turn signal is working but unless you are outside the car you have no awareness to the fact that the signals are not blinking. In addition to this my car lost its control of the air condition and any millage tracking features were lost. The mcu completely failed on me 3 times. The first two times it came back after a few hours and the third time it never came back (was driven to the service center after 3 days and it still hadn't come back). The failed mcu allows you to continue to drive the car and you have no awareness to the safety features that are disengaged. Also, all the sensors are disengaged to me the user which stops the car from alerting me to objects ahead, behind and to either side of me. There are endless articles about the first generation mcu failures. The chips inside these cars are known to fail after a certain numbers of cycles and Tesla has yet to address this known issues leaving the consumer to fend for themselves. Please investigate these issues and hold Tesla accountable.

On June 9 at approximately 10:30pm, the car accelerated on its own at a high rate of speed. The cruise control was off, as such, so was the driver assist mode. In addition, without prompting, the sunroof opened and the windshield wipers turned on. The only way to stop it was to reboot the computer. The fact that Tesla denies this is a problem is ridiculous. There is clearly a software issue that has been recently introduced. I have had the car for more than 5 years and have never had this type of problem until now.

Mcu failure (March 2020) from emmc memory wear-out resulted in non-functioning car. Car would not "turn off," thereby entirely draining batteries. Since the air conditioner was on during mcu failure, it would remain on, no matter what I did, thereby (a) running down the battery, and (b) potentially creating a maintenance or fire hazard (ac running for 12 hours). Also non-functional was cruise control, radio, rear camera, audible warnings (like turn-signal clicks), inability to control battery charging, loss of navigation, parking warning chimes, energy usage graph, cell features, etc. Significantly, the "creep" feature, which moves the car forward when pedal is lifted, also did not work -- causing me to have to relearn certain drive features, and at one point allowing the car to roll backward when it usually would have creeped forward. It's unknown if certain emergency braking features would have worked. Main vehicle control systems functioned (steering & brakes), but nothing else did, and driving was very concerning. Cost to repair was $1575. However, the same type of computer was installed, which leads to concerns that the same problem may occur in the future. See also NHTSA action number: pe20010.