The car suddenly brakes when the accommodative cruise control or full automatic driving is engaged. This happens at random times when driving on the highway. The braking is sudden and severe requiring driver intervention. Only happens with cruise control or full auto. Has happened several times since the car was purchased.
2020 Tesla Model 3 driver assistance complaints
Page 6 of 8: complaints 131 to 160 of 194, newest first, as owners wrote them.
My car when passing under signs or on two lane undivided roads will hit the brakes very aggressively. It’s difficult to reproduce and catches me and other drivers by surprise. The car didn’t do this during my first year of ownership, but now it happens several times a week. This will happen when using cruise control and autopilot. To me it’s rendered both features unusable.
While traveling on highway with Full self driving engaged car would occasionally brake and had to quickly press on the gas pedal for fear a car would hit me from behind. This seemed to happen when I approach an overpass but not most overpasses and typically happens once or twice during highway trips of about 80 miles on NJ garden state parkway. I had not reported this to Tesla or had the car checked for this issue and report it now seeing that there were formal reports filed on this issue to the federal safety agency. I do not recall whether any warning lights or audible alerts occurred during these incidents. First occurred after I took possession of car a couple of years back.
In moderate city traffic, the emergency braking system sounded and engaged prematurely and harshly. I was not using any automatic driving features and was driving “manually.” A vehicle in front of me stopped, and I intended to slow then stop in a reasonable fashion. I have 25 years’ driving experience, and am well-experienced to do this safely. The emergency braking system suddenly engaged at about 25 mph, grinding my car to a halt. The driver behind me was not expecting such a short stop, and rear-ended my vehicle. No one was injured in this crash. My seatbelt trigger deployed, which tripped the pyro fuse, rendering my car undriveable. I could not move my car off the roadway and caused traffic clogs. The repair bill was roughly $9000 for my vehicle. The weather was clear, the street was dry and the sun was near high noon.
I was driving on highway 205 near Tracy CA. I was in the left lane approaching a left curve in the road. The right lane to me was occupied by a semi with "wide load" on the back. It was in its lane and just ahead of me. As we both approached the curve in the road, my car experienced a "phantom brake" episode thinking it was going to hit the truck. Again both our vehicles were in their respective land and the truck was not crossing over the line.
I have reported multiple times that the car suddenly brakes in the middle of the express way with no apparent reason. This issue is known as phantom braking. Tesla postponed the diagnosis of the car multiple times and I was told by the service department that the problem was going to be fixed by replacing the radars when I left the car on May 16, which they did not do. The last events of phantom braking occurred multiple times and even I continued stepping on the accelerator, the car continued to engaging with the emergency braking. This is a safety issue and the company has failed to fix it
"Phantom braking" issue is very real and very dangerous on my vehicle. Problem occurs while operating the car with Autopilot engaged such that the adaptive cruise control is in operation. Problem happens with or without also having the auto-steer function engaged. Problem is that the vehicle will suddenly, very unexpectedly slam on the brakes. This can cause the driver of the vehicle to go into panic mode and for obvious reasons is also very dangerous for vehicles that are following the malfunctioning Tesla. Sometimes, this sudden, hard braking occurs when a vehicle coming toward the Tesla makes a left turn in front of the Tesla at a VERY far away and VERY safe distance - so safe that the driver of the Tesla is caught completely off guard when the Tesla decides to slam on the brakes. And cars behind the Tesla are also caught off guard. Other times, this "phantom braking" happens for no apparent reason at all - totally out of the blue. I am now very leery to use the autopilot feature, even though that was one of the vehicles biggest selling points. I am positive that only reason I have not been rear-ended is I have quick enough reflexes that I have been able to push my foot on the accelerator quickly enough to over-ride the sudden braking before the car behind me hit me. I have called Tesla's service department about this issue. They do acknowledge the issue, although in a vague manner as if they are reluctant to fully admit how prevalent and serious the issue is. I've asked if there are any adjustments I can make to the various settings that might reduce this problem. The representatives that I spoke with had only anecdotal experiences from conversations with other customers complaining about this problem. My Tesla has several control settings which could be related to this problem. They are not well explained in the owner's manual, plus some settings appear to overlap or conflict with similarly named settings. Confusing! Many incidents, so is date is not specific.
The contact owns a 2020 Tesla Model 3. The contact stated while driving approximately 20 MPH, there was a loud sound coming from the vehicle. There was a warning message to take control of the vehicle displayed. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The contact related the failure to the federal safety agency Campaign Number: 22V063000 (Electrical System, Forward Collision Avoidance). The approximate failure mileage was 9,800.
When using the adaptive cruise control phantom breaking occurs. This is extremely dangerous because at times cruise is set to 60-75 mph and car will randomly hard brake. If someone was following me this could definitely cause an accident. It’s also so abrupt that it jolts your body forward. I have not taken the car to any service center to reproduce. There are no warnings, no indications of anything visually on the screen that the car would see to cause the breaking. There is also one spot on my route it consistently does this on. This issue has been occurring since early 2021. I take the same route daily for school drop off purposes. It’s a 45mi trip one way. The issue will consistently occur at least twice one way on the trip if I’m using the adaptive cruise system. I do not use auto pilot only the cruise.
The car exceeds the speed limit with adaptive cruise control/autopilot, despite all the available settings being set to strictly obey the speed limit. Driving on the highway in a 60mph zone enabling autopilot will set the speed to 60mph, as expected. If the speed limit increases, the car will change to the new speed limit, e.g. 70mph. Now, if the speed limit drops back down to 60, the car will NOT slow to 60, although the correct speed limit is displayed. Also happens on streets.
We were pulling our car from 5th floor of a parking garage and as the car was coming down the ramp into the 4th floor, it accelerated itself to a high speed, hit another parked car, and came to a stop hitting concrete pillar in the garage. Our car was damaged severely and all the airbags got deployed, smoke came out it. We are still in shock from the incident and it was a traumatic experience for all 4 members of our family including two of our children. It would have been catastrophic had there been another person around or if something more had happened. Our car unexpectedly accelerated and none of the warnings worked. Tesla car usually gives us warning (a shrilling beeping noise) when an unexpected obstacle, be it another car or a trash can or a human, is within a short distance of the vehicle. This warning sound comes up even when no automatic driving feature is used. But on that day, the warning sound did not come and we think the vehicle may have malfunctioned. When we searched in the internet, we found many incidents of unexpected acceleration with Tesla Model 3.When we brought our concern to the insurance, we were asked to report to the federal safety agency. The car is now with insurance and the manufacturer has not looked into it as we haven’t informed them yet. The car was in excellent condition and there were no warning or failure lamps on before the incident. This warrants your attention and hence we are writing this to you. Please advise us the next steps and if we need to preserve the car to retrieve any data recorded in the vehicle. For the safety of other drivers and pedestrians, this needs to be thoroughly investigated. Kindly do the needful.
The blind spot warning is non-functional, plus the camera image system is defective in low light conditions as the image displayed is obscured by the glare of the turn signals
When I signal to change lanes the side cameras show the blind spot. At night the camera is blinded by the light from the turn signal due to a fault in the camera, Tesla has a fix but want hundreds of dollars to repair.
Vehicle at least once per day automatically brakes. Phantom emergency brakes for no reason randomly when going straight on the road no objects come into obstruction for the cameras. Common Tesla problem. This needs to be fixed. It has almost caused a few accidents for me now.
The contact's granddaughter owns a 2020 Tesla Model 3. The contact stated while her granddaughter was reversing, the rearview camera failed to turn on, causing the rear end of the vehicle to crash into a cement post. The contact was unsure whether there was a warning light illuminated. There were no injuries sustained. A police report was filed. The vehicle was towed to a Tesla-certified autobody mechanic but was not diagnosed or repaired. The vehicle was then towed to the contact's residence. The contact later received notification of the federal safety agency Campaign Number: 21V00D000 (Electrical System, Visibility, Back Over Prevention) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure but did not provide any assistance. The vehicle was not diagnosed or repaired. The failure mileage was approximately 400. VIN tool confirms parts not available.
Sporadically when driving at highway speeds, car will experience an error. Steering assist IMMEDIATELY decreases (wheel harder to turn), cruise control (if enabled) will disengage, and following Error codes appear on flatscreen : - Vehicle Hold Feature Unavailable - Tire Pressure Monitor System Fault - Automatic Emergency Braking Disabled - ABS (Anti-lock brakes) disabled - Regenerative Brakes Disabled - Steering assist reduced - Traction control disabled Unsure of which component is at fault. Tesla Service center (Norfolk VA) has pushed off appointment for more than 30 days but has acknowledged that there is an issue. SAFETY: Loss of ABS is a major safety risk to occupants. Loss of steering assist also puts driver and others at risk due to increased steering effort. Loss loss of regenerative braking also a safety risk due to the instantaneous change of vehicle braking behavior when regenerative braking switches off.
Shift stalk also serves as fsd disengagement- to Shift into reverse with a regular car, it’s a very explicit mechanical shift with either the manual or automatic gear box. So consider this scenario where I nearly back crashed into the car behind me. In fsd, it can be disengaged either by 1) braking, (2) breaking torque with the steering wheel or (3) lifting the gear selector stick. So, I arrive at a stop light, I brake because fsd driving is producing an alarm that it came too close to the car in front of me (not me, fsd too close). Being human and not realizing that fsd disengaged when I hit the brake, a then lifted the shift stalk to disengage fsd to get it to shut up with the alarm. Actually what this did was shift me into reverse. Light turns green, I step on the accelerator and I go backwards. This event would be impossible with a conventional shifter. the other major issue is in a school zone. I acknowledge that the software appears to have placeholders where it recognizes a school zone, brakes and proceeds. The issue however is, when on the zone, in fsd and having manually set to the zone speed, the crosswalk guard flags the lane to stop, fsd instead, proceeds to snap to the left and attempt to pass the car in front of me, breaching all zone protocol.
The emergency automatic brake, cruise control and auto pilot feature gets disabled frequently. All 3 features gets disabled at same time. Contacted tesla service center in decatur-GA. They are saying they cannot find the problem and hence cannot solve it. They say the engineers are looking into it, and my car needs a firmware update. No estimated time to fix these issues is given. The service center advised that the car is safe to drive! Please help. Thanks.
Car engages self breaking while on autopilot without any particular reason. Repeated brhavior happened and almost caused rear end collision.
I was traveling on the 91 freeway headed west in corona, ca. I was in the fastrak lane approaching an overpass. I was using the cruise control option and going about 73 mph when out of nowhere my vehicle acted as if someone slammed on the brakes. We were moving with the flow of traffic and luckily I had my foot resting over the gas pedal so I immediately pushed down to override the system. The car behind us had to change lanes to avoid hitting us.
Vehicle was at a stop with brake engaged and then it proceeded to go full speed into a vehicle two meters away without acceleration pedal engaged. Emergency brake did not activate during or slightly before the collision. The brakes had to be engaged manually, but vehicle was already past a certain velocity on its own accord to be able to stop properly without damaging property or harming pedestrians.
The contact owns a 2020 Tesla Model 3. The contact stated while driving at various speeds and using Self Driving feature, the vehicle experienced phantom braking. There were no warning lights illuminated. The contact depressed the accelerator pedal and continued to drive the vehicle. Additionally, the contact stated while reversing, the vehicle inadvertently moved forward and slightly bumped into a guardrail. There was no further information provided. The contact depressed the brake pedal and was able to successfully reverse after several attempts. The contact also stated that the vehicle would fail to make normal beeping sounds and alerts while reversing. The manufacturer was notified of the failure and informed the contact that unless he provided the specific time and date of the failure, they could not assist. The vehicle was not diagnosed or repaired. The failure mileage was approximately 10,000.
While driving at highway speed, the vehicle's automatic emergency braking unexpectedly activated, without cause or warning, which caused a very rapid deceleration of the vehicle. Fortunately, the traffic on the highway was light and no other vehicles were around, but this "phantom braking" had the potential for a major collision. This is the first time this has happened on this vehicle. The vehicle has not been inspected by the manufacturer and there were no prior warnings.
The contact owns a 2020 Tesla Model 3. The contact stated that while the vehicle was in reverse, the rear camera would intermittently fail to operate as needed. The contact had previously received notification of the federal safety agency Campaign Number: 21V00D000 (Electrical System, Visibility, Back Over Prevention) but stated that the vehicle was not included in the recall. Neither the dealer nor the manufacturer had been notified of the failure. The approximate failure mileage was 20,000.
My Tesla Model 3 is equipped with standard auto pilot (no full-self driving) and traffic aware cruise control (TACC or otherwise known as adaptive cruise control). While engaged, I experience, on average, per 60-mile trip a minimum of 1 phantom braking event. Note this is not on residential, county or state roads, this is on divided highways. The vehicle will slam on the brakes for no reason and will at times activate the forward collision warning system. It's so bad I've disabled many of the safety systems for fear I will cause an accident. Traffic aware cruise control on a two lane road (this does not steer or lane center the vehicle), is unusable because it constantly brakes for oncoming traffic in other lanes, or aggressively brakes for vehicles turning in front of you, even with plenty of distance to clear. The system will even continue to brake, after the turning vehicle has fully cleared the road. This requires the driver to slam the accelerator to cancel the braking action. When I first purchased the vehicle in February of 2020, there were no issues with Phantom braking. This issue has become worse with over-the-air updates. I canceled my full-self driving subscription because the phantom braking was even worse with that software. Additionally, Tesla uses a driver safety score to determine insurance rates if you are using their branded insurance program. When these phantom braking events occur it sometimes registers as an emergency braking event which deducts from your overall score and can ultimately cause your rates to increase. When I enrolled in FSD, before Tesla would release the software, they required a certain safety score over a week's time. During that time the system falsely reported running red lights, emergency braking events, and aggressive stopping, while only using the regenerative braking system. They system will also flag you for tailgating with auto pilot engaged.
There is a complete failure of the Autopilot (cruise control) feature and sudden braking when using. There is an extreme risk to personal safety when using this feature. On several occasions, I have been using this feature on the highway while going the posted speed limit of 65 or 70 mph. Suddenly, the vehicle will decelerate aggressively and violently causing any vehicles behind me to slam on their brakes to avoid a collision. This feature of the vehicle is not recognizing road signs, or other inanimate objects, correctly and mistakes them for some hazard that requires braking. Very dangerous.
The Tesla rear facing repeater cameras show the driver's blind spot when changing lanes. The cameras are also used during automatic lane changes when the car is in drive-assisted (FSD) mode on the highway and in city (FSD Beta). The cameras have a manufacturer defect. At night, light from the turn signal led is blinding a large part of the vision field of these cameras. This renders the blind spot vision for the driver but also the computer assisted automatic lane changes for the car partially obstructed. Tesla has acknowledged this defect by redesigning the rear facing cameras so the blinding is remedied. Tesla is refusing to fix this issue under warranty and requires owners to pay for this safety fix. Tesla's statement on this issue: "Hi Stephan! The blind spot camera performance on your vehicle is neither a defect of materials nor workmanship. It is a characteristic of the product. And it's a characteristic that has been design enhanced in newer vehicle production. If you wish to upgrade to newer camera technology, you have an option to purchase the upgraded cameras and have them installed." I am having my cameras replaced, and will pay for it. I believe Tesla should, however, seeing how this is driver safety related even if they are unwilling to acknowledge this.
During regular driving at highway speeds, and using Adaptive Cruise control and auto steer feature, The car would suddenly brake substantially for no reason. There was no object or anything that In the road. If there was a car traveling behind me closely a sever accident could have happened. This has happened on more than 10 occasions since owning the car in 2020 new from Manufacturer.
Phantom breaking on my car, just like everyone else. In autopilot on the highway my car will break pretty hard when there is nothing in front of it. Seems to occur when approaching bridges and large signs. If I drive on the highway every day, it will happen to some degree at least once a drive. At least once this nearly caused an accident (I was almost rear ended because my car braked for no reason)
In numerous instances since the vehicle was purchased in December 2019 and with all software versions to date, the vehicle has suddenly and with no warning or reason rapidly and forcefully applied the brakes while adaptive cruise control was set. This has happened on four lane interstates at speeds between 65 and 78mph and on two lane highways in both day and night. The "phantom braking" is worst on two lane highways and makes the use of cruise control at night on a two lane highway nearly impossible to use due to the frequency of occurrences. This braking has nearly caused accidents and has resulted in my wife's neck aching due to the unexpected and forceful application of the brakes.
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