2017 Tesla Model S acceleration problems

Filed Oct 26, 2026 · Acceleration, Driver assistance · OH

Tesla's Full Self Driving does not allow the operator to choose a maximum, never-exceed speed. If the perceived speed limit is wrong, which happens often, the ADAS becomes very dangerous driving much too fast.

Filed May 4, 2025 · Acceleration, Driver assistance · OH

Software 2025.14.1, Full Self Driving 12.6.4 (FSD). Vehicle when using FSD continuously slows to 10 MPH below the speed limit. You can manually press the accelerator to speed up but FSD will not brake when doing so and warns you of the same. After a minute of being back at the speed limit, FSD again slows down. Repeat this process constantly. Very dangerous.

Filed Apr 16, 2025 · Acceleration, Driver assistance · NC

Stoped at intersection. While trying to engage signal lights, hit the stalk below that engages full self driving. Car immediately jumped into intersection .in front of another car and almost collided. Since the last update, Cars with my configuration wave been acting irradely and it is not safe to use FSD.

Filed Dec 18, 2024 · Acceleration, Driver assistance · NV · crash

Approaching my garage door as it was opening when the car suddenly accelerated smashing through the garage door, through the back wall of the garage, through the laundry room and finally stopped in the main bedroom with the front wheels off the ground as the car rested on top of the washing machine.

Filed Apr 16, 2023 · Acceleration · TX · crash

-I think there is known problem with the Tesla. It autoaccelrates o behaves like someone is taking ove the control fo the car - The inital problem happend on June 24th 2022. I was in the parking lot of my work when It felt like I had lost control of the car to hit 2 parked cars. It cost severe damage to front of the car. Car was in the workshop for 4 months. This was completely unanticipated.I have hisotry of driving in US for over 20 years on major freeways before this without a single accident may have developed muscle memory( reflexes by repeated actions) in controlling the car. I was not distracted at the time. of note however my car had rear damages from being rear ended 10 days prior but Tesla authroized dealer had said it was drivable. The car was not in auto pilot mode - Tesla didnt give me any explanation and the repair workshop generalized saying it's usually driver's fault - Since the return from the repair I have 2 auto accelarations driving in the low speed zone. I had to break immediately to control it. Each time it felt like somthing remotely did this. There hasnt been recurrent damage. --The car was inspected by the Tesla authorized workshop couple of times and they claim nothing is wrong. -There have been no warning except on 04/15/2023 when it happened smewhere between 1.34 to 1.36 I thught I heard sort of noise/ quick warning. Again, each time it happens it feels like car is trying to do its own thing ( even when it's not in auto pilot mode)or someone is remotely doing it. Further info on my car: It was purchased in 2020 as a used from Tesla.This problem of auto accleartion or loss of control feeling did not start until car was rear ended in June 2022. I have security footage from the parking lot on how the car behaved in June of 2022 -

Filed Mar 2, 2023 · Acceleration · MN

Since full self driving, beta has been turned on my car no longer slows down when I reduce the speed or when it encounters a lower speed limit sign, which it will read the speed limit. Prior to this when I decrease the speed or it noticed a decrease speed limit sign. It would use regenerative braking to slow the vehicle down. Now it’ just coasts , and actually sometimes maintains power at a high speed. There are times from going from a 60 and then to a 40 and then to a 30 mile an hour speed zone where it will continue to travel at 50+ miles an hour through the entire speed zone without slowing down which it did not do before FSD beta was active.I have to disengage the full self driving in order to get the car to slow down

Filed Feb 18, 2023 · Acceleration, Brakes · MN

This alert is about "phantom braking", which is well known to Tesla owners, and the subject of much online discussion among owners who seem to all experience this and are furious that it continues to exist. Here's what happens, very, very often yet: with adaptive cruise control engaged (with or without "autopilot", ie 'autosteer' also engaged), the brakes are applied suddenly without any need for braking (no objects in the way of travel, etc). We just completed a trip on I-94 from Billings/Red Lodge, Montana across North Dakota, where phantom braking was experienced probably 50 times, with no other vehicles ahead of us, and on perfectly dry pavement, etc. There had also been very dangerous icy conditions (lots of even "skating rink ice") on the stretch of I-94 in Montana, from Billings into North Dakota. Had the phantom braking occurred on one of the sporadic ice patches further east, it could have easily caused a serious accident, not just been a scary nuisance. In situations with heavy traffic, phantom braking could easily result in rear-end collisions by cars that may be following too close to react before we, the Tesla drivers, override the phantom braking by hitting the accelerator--even that simple maneuver cannot be executed before the car has suddenly decelerated 10-20 mph or more. Some of the phantom braking seems to have been somewhat corrected where we'd first encountered it, on I-394 west of dntn Minneapolis--it doesn't happen as often now as it did a few years ago. There we'd suspected it may have been triggered by the shadows cast on the pavement ahead of us by overhead bridges. But this rash of events across North Dakota this week brought our worst memories and fears back with a vengeance--and with zero theories that could explain it. On a recent online discussion about this issue, there were several pleas for Tesla to give us a "dumb cruise control" option till this gets fixed. Please help foster solutions to this difficult situation! Thank you.

Filed Oct 18, 2022 · Acceleration, Steering · CA

This is aTesla Model S electric car. The battery was 80% charged at the time of the incident. Under normal driving at a speed of around 40 MPH in a city road road, suddenly the car lost power. The steering wheel locked and I had no control over the car. Display screen in the instrument panel and the large central tocuh screen display blacked out. A few seconds later, the car control returned and I was able to safely drive the car. But, the momentary loss of control is dangerous and scary.

Filed Sep 23, 2022 · Acceleration, Driver assistance · FL

The issue occurred twice over the period of the past two months, both times I was driving on highway with Tesla autopilot enabled ( It is Adaptive Cruise Control), for no apparent reason the car hit the brakes, all vehicles driving behind me had to hit brakes or change lanes to avoid Collision. Both times I created service request with tesla and got no clear answer to why its happening, first time I was told it is because the exit on map was about couple miles from car location so car had to hit brake hard and change lane to make it to exit but car never tried to change lane, it just did hard braking. 2nd time I was told it happened due to wheel alignment not being accurate. After wheel alignment was done I reached out to tesla again but so far they can not confirm or deny if tesla autopilot is safe for me to drive. I was told to use autopilot at my own discretion. Are car manufactures allowed to sell hardware or software without taking responsibility for its safety ?

Filed Jun 16, 2022 · Acceleration, Brakes · MD

Vehicle automatically and unexpectedly applies brakes when using Cruise Control when no other cars are in proximity or approaching. Sometimes braking is light but other times it is a jolt that is extremely starling. Often happens multiple times within minutes. Unpredictable when it will occur. I have taken the vehicle to Tesla 3 times and they say that they know about the problem but their Autopilot is still in Beta and are not actively working on a fix. On 4/28/2022, while on a trip, there were 5 incidents between 9:51am and 1:43pm.