2021 TESLA MODEL Y Complaints

The vehicle randomly applies hard brakes. This makes cruise unusable and presents a safety issue for cars behind. I was almost hit from behind when my Tesla applied brakes on interstate going from 65 to 35MPH.

My vehicle brakes suddenly for no apparent reason. Happens usually on highway, usually when on self driving or auto navigation mode but also in cruise control rarely. It will go from 65 or 70 mph to 35-40 mph all of a sudden without warning without any vehicle close by. I notified Tesla multiple times. They said “it happens”. They asked me for exact date time location, I gave it, it still happens so I gave up and don’t use self driving much I cannot now tell you exact date time but if it happens next time I can keep records

I had the Tesla on autopilot on interstate I-80, it was raining. The car was in the middle lane. It suddenly started to slide to the right and hit a truck in the right lane. I tried to regain control of the vehicle and hit the brake hard, but it did not seem to work. Tesla clipped the truck and continued to slide off into the guard rail.

-Auto pilot (adaptive cruise control). Yes it is available for inspection. -Vehicle unexpectedly slowes down on highways (when using cruise control) at an unsafe rate when there is nothing in the path of the vehicle. This has cause multiple instances of vehicles almost rear-ending me due to the rapid deceleration. -I have asked a Tesla Service Center representative about the phantom breaking and they stated it was a known issue and that was being worked on. -No, the vehicle was not inspected by the manufacturer since we were advised it was a known issue. -There is no warning lights or sounds before the vehicle suddenly brakes. I suspect that hills, shadows, on coming traffic on two lane highways are some of the causes for the phantom braking.

There are 4 issues to report for our Tesla Model Y: 1) On the highway, our Tesla often presses on the brakes and slows down by itself when it should not be doing so. This occurs when we have adaptive cruise control on. We’ve noticed that at the time of the slowdown, the Tesla misreads the highway speed limit. For example, the Tesla will read the speed limit as 70 mph, then all of sudden without warning, the Tesla will suddenly read the speed limit at 40 mph, which then causes the Tesla to break and slow down by itself, when the speed limit is actually still 70 mph. This can happen several times on a single highway trip. Aside from the shock we receive as a driver as our vehicle slows unexpectedly, this could cause a rear end collision if a car is following us too closely from behind. 2) When we use adaptive cruise control and the steering assist feature, the car does not recognize to slow down on highway off ramp curves. I monitor the speed around curves, though if a driver is not aware of the issue and expects for the Tesla to take the curve slowly, this could cause an issue. In particular, if there is a big curve, I’d be concerned of the Tesla losing control and going off the road, due to speed. 3) The car will often provide a frontal collision warning, even if there is no car or object in front of the car, while it's in motion. This can lead to confusion for the driver or possibly hard breaking, which could cause a rear-end collision, if a car is following too close behind the Tesla. Also, the Tesla driver may swerve unnecessarily to avoid an object that isn’t there, which could cause a collision. 4) The Tesla is advertised as being able to travel over 300 miles on a single charge, however, the conditions for this to happen seem incredibly difficult to meet, as mileage is usually far less than this. This can cause drivers to overestimate how far they can drive, which could lead to cars urgently pulling of the road to prevent stalling where traffic is.

This is my sixth complaint to you. I own a 2021Tesla Model Y. I took possession of it on August 7, 2021, in Santa Barbara, Ca. Ever since, I have had several thousand instances of automatic emergency braking (phantom braking) episodes while using cruise control or autopilot. On January 26, 2022, I had 47 episodes, in two hours. This is typical. I was told immediately following my purchase last August that there would soon be a software update to remedy the problem. There hasn't! I have had five appointments with the Tesla service center, and they continually say "we can't fix it, only the software engineers can". The braking episodes are dangerous! I implore you to hold Tesla accountable and demand they fix the problem immediately. PLEASE!

Several instances of emergency braking applied without warning or obvious need during multiple driving sessions. This results in an unexpected rapid vehicle deceleration. Fortunately no other vehicle was following close enough to represent an imminent safety hazard though it is easily plausible this could happen. Typically the issue occurs when traveling uphill or around a bend and encountering traffic in an oncoming lane, structures (bridges) or dark shadows. The unexpected emergency braking has also happened when adaptive cruise control or autopilot is engaged while overtaking large vehicles on the left (tractor trailers in the right lane). I have also noticed several erroneous lane departure warnings despite turning off these notifications on the dashboard. They are more a nuisance than safety hazard so far but would like to completely silence them entirely. These issues have yet to be reproduced or inspected by the dealer, police, insurance or other investigator. No warning lamps or indicators were active at the time the braking or lane departure warnings were observed.

I was traveling early morning before sunrise over the tehachapi pass towards Mojave in California. Someone had lost a camper shell from the top of a pickup truck in the lane. It was still dark outside. I saw the obstruction in the road but the car cameras did not pick it up. I pulled into the left lane to try to get around the camper shell. The lane assist pulled me right back into the camper shell which tore down the side of the car doing 10k in damage. The car never recognized impact or an accident. I have the videos from the cameras of the car. The lane assist, as far as I know, only doesn’t activate when the turn signal is used, which I did not have time for, as I had less than 200 feet between me and the camper shell.

using autopilot adaptive cruise control, the vehicle on several occasions but mostly on non median highways the car for no apparent reason brakes hard. vehicles around me especially behind are put in danger by my sudden, hard braking for no apparent reason

I was driving to and from mammoth lakes California. Middle of the day, clear weather, with no other cars within thousands of feet if me. I put my vehicle into adaptive cruise control (not autopilot) and several times during the drive the brakes would slam to the point of reducing my speed from around 70 mph to roughly 40 mph very quickly. It was extremely happened and was repeatable but with no known reason.