20 problems related to adaptive cruise control have been reported for the 2016 Tesla Model S. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Tesla Model S based on all problems reported for the 2016 Model S.
Multitude of electrical problems: fuel/propulsion system, lighting, and body controls along with all adas: adaptive cruise control, automatic emergency braking, blind spot warning, forward collision warning, lane departure warning, lane keeping assistance systems are impacted by random intermittent glitching as computer screen bubbling progressed with goo leaking out of the bottom of the main computer. Most recent symptom was disabling of all adas systems along with automatic high beam headlight switching. Long ago as screen began to bubble and express fluid the low windshield washer alert came on and remains even when the tank is full. Then the charge port responsiveness degraded and stopped automatically functioning requiring user to bypass by clicking the "open charge port", then waiting 3 seconds, then tapping "unlock charge port". User must perform this as remote manual operation from a nacs charging handle button push will fail. Long ago the computer controlled 'home link' module would have excessive time delays on the order of hours or days from when the user would program and or operate the function. I even had a "phanthom" car appear by the computer calculations with e-braking before the adas system failed fully, a 1. 0 Tesla system should not have that. . . Windows have randomly rolled down and the driver side rear door will unlock and open on its own as the door handles present themselves. The safety risk class is unknown unknown; if the root problem is the screen filling leaking on electronics any number of unknown, unplanned, unstudied risk failure modes exist that can not be predicted. Schematically the homelink is on connector x429 sharing canbus connections impacting safety: driver "instrument cluster", das systems connected to "power steering ecu", "ibooster ecu", "abs / stability ecu", "passive restraints controller". . . See can network - chassis drawing page 11 , "energy system - charger logic connections" "instrument cluster / lin" pg35.
My car is equipped with full self driving. When I use that mode the car drives over , on, or dangerously close to the middle yellow line. Basically it drives you into oncoming traffic every single time I use it. It also has erratic fluctuations in throttle control that would confuse other drivers and possibly cause an accident. It’s constantly increasing and decreasing the throttle and feels jerky going down the road. I took the car to the Tesla service center yesterday and they confirmed the issue and checked the hardware associated with the system. They indicated that the hardware was all working and adjusted properly and that the issue is a software issue. They told me to not use it and that eventually maybe Tesla will put out an update that may fix the problem. Tesla has sold thousands of cars with fsd and continues to call the system in beta. They have since moved on to 2 more versions of the software and not offered an upgrade to the thousands of early adopters with the original hardware and software. The system is dangerous to drivers and everyone on or near the roadways when these are activated. Tesla said that can upgrade these “older” 2015 and newer models but haven’t because it will cost too much for them. They charged over $8000 for the system and it has yet to work. They need to be forced recall the system and fix these cars for everyone’s safety. The service manager told me he has a similar issue with car and he just opts to not use it. So even the employees at Tesla know of the issue.
My car slams on the brakes consistently at green lights when fsd is activated. This is version 12. 5. 4. 2 of fsd. Tesla is not responding to my inquiries.
You guys have ruined auto-pilot and made it 10x more dangerous and will cause more accidents in this format. It needs to be reversed back to what it was. Now when looking at the screen to change the temperature or change a song, or looking at the mirror, it asks you to touch the wheel immediately and causes unnecessary stress and potential mistakes, I've already oversteered the wheel several times swerving after it warns me to touch the wheel because I'm trying to look at a mirror quickly to not have the alert come on. In addition, it has 3 marks against me, and will be suspended from using it soon. Never before have I even had a mark against me on the system. I believe your approach to fixing the situation is fundamentally flawed. People get into accidents with autopilot because of their negligence, not because of autopilot. That is on the end user who has insurance and a driving record. Do not punish all of those who are good drivers, you are making us worse drivers now with the new autopilot to save a few accidents from bad drivers, but it will now cause many more in this format. This is a terrible decision on the regulatory part, and a sign of over regulation.
Driving 75mph on cruise control. Car sensed a vehicle in front of me (which there were no vehicles in sight) my Tesla started flashing the red car light and making the alert noise. My vehicle automatically slammed on the brakes dropping me to about 40mph instantly. My greatest fear continuing to drive this vehicle is if I use cruise control, and it senses a vehicle in front of me without their actually being a vehicle and slams on the brakes again myself or someone is going to get hurt. This has the potential to cause death or cause severe injury.
The car was on enhanced auto pilot and was moving at about 50 mph, the traffic in front of me slowed down. The car failed to give an alert, it failed to slow down and stop. I applied the breaks, but by then the car crashed into the pick-up truck in front of me. The car came to a complete stop after the crash and the computer system in the car completely shut down. The car had to be towed to the garage. My safety and the safety of the driver in front of me were at risk due to malfunction of the enhanced auto pilot system we immediately filed a service ticket with Tesla and upon repeated requests we were told that car could not be inspected and the breaks or auto pilot system could not be tested as the car was not drivable. Police and car insurance company were notified. Tesla was able to provide us with a edr there were no warning signs or messages prior to the malfunction.
With full self driving mode engaged the automatic braking feature comes on even though no cars or obstacles are present. This has been very dangerous on the highway.
The car was in autopilot mode 3 days ago on highway 41 in CA at a speed of about 65 mph when the brakes were suddenly activated, dramatically slowing the speed. There was no obstruction in the road to warrant braking. I pressed the accelerator to resume my speed and to avoid stopping in the middle of the highway. The same thing happened to me few months ago while in autopilot mode.
I’ve been complaining about my mcu1 glitching, freezing and my rear view camera not working since June 2022. I also filing a complaint because I have the fsd package on my 2016 mcu1 car and that has not been delivered after a 6 year wait. They released fsd to the mcu1 platform. But less than 50 cars got it and that very software got recalled. They have fixed every other platform but mcu1 since. I truly believe there is a issue with mcu1 hw3. I’ve complained several times about my mcu under warranty about these issues and they said the only fix is mcu2 . Which means they couldn’t fix it under warrranty. That’s a breach of warranty. I almost hit a elderly gentleman a few weeks ago because I was backing up and my screen went black. This has been happening and Tesla knows all about it. But Tesla says the only fix is the paid mcu2 upgrade for 2500 dollars. Tesla has been really deceptive and is trying to force it customers to their upgrade. This has been a ongoing issue with many loyal customers. Pretty much anyone that has a 2016-17 Tesla s or x with mcu1. Losing basic functionality shouldn’t be a issue but here we are. Please look into this I’m sure you find several others just like me. Thanks for your help.
A newer Tesla will come to a complete stop with the one pedal operation, however my older car does not. It will roll through a stop sign or red light. This has been fixed on full self driving cars but should be fixed on single pedal operation cars.
When using the cruise control, vehicle will break hard, almost to a stop. This happens mostly on a curve 1 or 2 lanes when going highway speeds for no apparent reason.
Hundreds of times, usually on interstate highways, our car would suddenly brake for no apparent reason. Often there are no vehicles or obstacles or bridges nearby. The car will brake from 75 mph down to 25 mph if we don't hit the accelerator. This is scary every time.
During placing the car in highway autopilot mode by clicking the stalk twice the car made a hard right turn that I had to correct manually until the auto drive dropped out. On a separate occasion, in autopilot, the braking system was applied when there was no reason. On another occasion, in autopilot, the car went out of the lane over the yellow line. I took the car to a Tesla service center where I was told that my mcu1 needed to be replaced with a mcu2 at my expense at $1610. There currently is no recall for the failure of the mcu1 that controls the autopilot functions. Other symptoms are screen blackout. Seat loss of position sync, slow navigation commands.
Touch screen stops working, removes backup camera feed and all audio alerts are silenced. This is a direct result of the emmc failure in the mcu touch screen.
While driving the touchscreen became unresponsive and all functions associated with the touchscreen including traffic adaptive cruise control on the highway and the rear view camera while in reverse were inoperable.
Car's central console locks up or goes blank while driving. This creates a driving hazard as drive must take his eyes off the road and try to restart the console. Tesla sent out a notice by mail in March that a recall was issued and that Tesla would replace the defective parts. Tesla sent a secondary notice in April. They will not take calls concerning this issue and have not provided an estimated repair date. No communication on this recall has been made by Tesla for 90 days.
2 weeks ago I was driving down the freeway at night. My infotainment unit turned black, I lost: 1. . Auto pilot 2. Hvac 3. Exterior lights 4. Radio 5. Maps, blinkers when I contacted Tesla, they said nothing was wrong with my car. We could have easily got into an accident losing these vital things. How do you get Tesla to fix this and what is the right fix?.
Prior to 10/2/2020 numerous reboots usually after being parked. Had to wait excessive time since I had pin to drive enabled. Disabled pin to drive since I was getting stuck. It is embarrassing and not a good reflection on Tesla products to have to wait 5 minutes to move your car. Something is wrong. 10/2/2020 while driving on I 40 noted there was a lack of turn signal sounds. Noted navigation did not seem to be updating to current position. While on autopilot the car started to drift toward an exit. The autopilot had disengaged with no warning sound' nothing. Continued to steer manually. Screen went black. Ac stopped. After several minutes the screen rebooted. Had to re-input destination. 10/3/2020. Went to ashland nc supercharger to top off before getting on the blue ridge parkway. Was only getting 4 kw to start finally giving up after 30 minutes achieving a maximum of 10kw. When I unplugged I got a warning "reduced power, systems shutting down. Service required. Vehicle may not start". The screen went black and after time finally restarted and I was able to continue. Later in cherokee nc the screen again rebooted after charging at a j1772 station. 10/4/2020. While driving with on i95 near st augustine I noted the loss of turn signal sound again. The navigation was frozen again. Again there was no sound or warning disengaging or engaging autopilot. The screen went black. The ac went off. I observed the Tesla t come up then the screen went black again. Then the Tesla t came up a second time and after several minutes the controls started working again. Again at Nov 19@ 7:03 driving west in I-4 stanford, FL. Same as on 10/2. Loss of autopilot, loss of turn signal sound, loss of climate control, loss of music. Took 6 minutes to reboot. Took an additional 5 minutes for navigation to restore. There are more instances but I am out of characters.
Tesla Model S center touchscreen and associated assistance &infortainment features have become unstable and perform correctly only intermittently. Would have checked more boxes above in terms of systems affected but only allowed 3. Backup camera slow to come up (when working). System shutdowns and reboots occur while driving and parked. Backup camera, climate control, defogging systems, head light control, vehicle lock/unlock, turn signal indicator noice, and all driver assistance such as automatic breaking, adaptive cruise control, navigation etc are affected when this occurs. Variety of errors with entire touchscreen system including lack of response to voice commands, phone connections and audio controls occur nearly every day whether connected to wifi, lte, driving or stationary. Audio system will sometimes change volume when these errors occur or will be unavailable to change to a safer volume. Issues have been occurring for the past year at least but have become much worse over time. Have repeatedly brought up these concerns with manufacturer who states system is performing according to manufacturer standards and/or "known firmware issue". These issues absolutely affect driving safety.
Main control unit (mcu)has shut down several times. The screen has gone black and navigation functions and maps disappeared. Inconvenience more than anything there. I have lost the backup camera and defrost functions. The car has remained pretty much drivable though I don't think I had turn signals (or at least the indication on dash). The car has been both stationary and moving when these things happened.
| Adaptive Cruise Control problems | |
| Automatic Emergency Braking problems | |
| Warnings problems | |
| Forward Collision Avoidance problems |