As per many similar complaints, my Model Y while on cruise control will suddenly brake for absolutely no reason. I have almost been rear ended on the highway while traveling at 74 miles per hour. The car drops 20-40 MPH seemingly for absolutely no reason. I believe that this has been dubbed "Phantom Braking". Add me to the list!
2022 Tesla Model Y driver assistance complaints
Page 17 of 19: complaints 461 to 490 of 531, newest first, as owners wrote them.
At highway speeds using adaptive cruise or autopilot, vehicle suddenly brakes and veers towards the shoulder of the road. This occurs when a large vehicle such as a bus or semi is approaching from the opposite direction. Emergency break came close to causing a rear end collision today 2/17/22. Contacted Tesla service for investigation and repair.
While operating the cruise control on two-lane roads, the Tesla Model Y will frequently engage the emergency stop/warning function. NOTE: no autopilot has been used. There is no lane swerving or concern of the car approaching in the opposite lane or is the Model Y in any unsafe operating situation. This occurs in almost every driving situation with the cruise control engaged (two-lane roads) and has been documented with other passengers in the automobile. Obviously, this creates a panic situation for the driver and passengers while also creating a very unsafe operation for following cars. Multiple dates/times and weather conditions were mostly clear, i.e. no rain. As a note, we have owned a 2016 and 2018 Tesla Model S that did not have this problem.
Phantom Braking While using Autopilot (cruise control), my Tesla Model Y without warning slows the car from the speed limit (ex: 60mpg) down to half the speed or less. This usually occurs when the is a large approaching vehicle (semi or box truck) or when going around corners with a solid background (trees or large rocks). I assume this is because the car believes a collision is imminent and is trying to avoid it. Once the vehicle is past the car continues as if nothing occurred. The first time this happened was very scary and I ad no idea why it happened. Now I keep my foot resting above the gas pedal which keeps the car from severe braking action if you depress pedal right away. I mostly do not use cruise control on two lanes roads with lots of traffic for safety reasons, especially if there's someone following too close. My last trip of 60+ miles this probably occurred half a dozen times until I turned it off.
While using the Autopilot feature, the car applied the brakes many times for no reason. One incident was so severe that I decided to disable the autopilot feature for the rest of the trip so as not to put the drivers behind me in a dangerous situation.
The vehicle, while in Autopilot, has demonstrated "phantom breaking" on three occasions, two of which occurred on the same trip. The first was at night traveling on a highway with no vehicles in front of the car while the car was traveling 70 mph (the posted speed limit). (details on speed and mileage included below) This almost caused the car behind us to rear end our car. The second occurred during the day as we were traveling over a bridge on an off ramp at approximately 50 mph and both my children, who were sleeping, were unprepared for a sudden stop and complained about pain from the safety restraint system. The third was on a highway at 70 mph, and there was less of an effect as I was holding my foot above the throttle in the event this happened again. My wife asked that I no longer use this system while she or the children are in the car. There is no indication that the system recognizes an issue as the automatic dashcam did not activate, but it has activated in other situations where vehicles have made sudden movements in our lane in front of the vehicle. It is available for inspection. It has not been inspected by service yet. They are scheduled for February 22. No other inspections have occurred. There was no warning of this or messages of any kind to indicate the system was not functioning properly.
The car applies brakes for no apparent reason while using adaptive cruise control. This occurs frequently and without warning. I have become afraid to use cruise control because I fear it will cause an accident.
While using adaptive cruise control, this vehicle intermittently breaks dramatically and swerves on its own without any indication of a possible collision. In fact, most of the time there are no vehicles even within sight of the vehicle. Occurs even on straight roads with no vehicles seen and no one in the area. Friday 02-11-2022 2300hrs - Sat 02-12-2022 0300 hrs. While driving in traffic any vehicles on the right or left are perceived as a threat and the vehicle breaks wildly.
Autopilot feature hard braked twice suddenly while driving on highway . I was next to another car .I was shocked Auto lane departure with over taking slow traffic . While overtaking the car gives left signal option to lane change and then while crossing the vehicle in the right it gives another signal to turn right or tries to turn while the vehicle is still there in the blind spot . This happen nee few times which is scary .
Vehicle experiences "phantom braking" where during use of TACC or "Autopilot" it will suddenly and drastically slow down without warning. This seems to occur when it falsely detects another vehicle is about to enter the same lane either with oncoming or merging traffic. Seems to be more severe with poor lighting conditions (dawn, dusk, nighttime) and on two-lane undivided roads.
Phantom braking.
When using traffic aware cruise control or Autopilot, the car will slam on the brakes when it sees a large vehicle, like a semi truck or bus, in the oncoming lane. It happens about 50% of the time when there is a truck in the oncoming lane. Recently, on a drive up highway 88 near Jackson, this happened 8 times over a 40 mile stretch. It doesn’t just slow down— it tries to come to a full stop, snapping my head forward. I nearly lost control several times. I no longer feel safe using cruise control at all, under any circumstances.
When using the traffic aware cruise control the vehicle brakes hard suddenly for no reason. I have only had this model Y for 11 days and only have 280 miles on the car and it has braked for no reason over 20 times. I have had to stop using the cruise control and haven’t tried the auto pilot. I am concerned about being rear ended and hope Tesla finds a fix to this quickly. I know there are others having this same issue and wanted to report my experience on a newly purchased Model Y. I have also made Tesla aware of my concern but have not heard anything back from them.
When using autopilot, the car brakes at all sorts of non-events incl curvy roads, shiny puddles, undulations, trucks going the other way without incident, and more.
Phantom breaking happens consistently when cruise control is engaged. The phantom breaking happens every day and multiple times a day. Whether it be on a multi lane freeway or a two lane highway, serious breaking occurs and often can be quite dangerous when cars are following behind our vehicle.
I was driving on a snowy narrow two lane road at 9:45am. There was no one in front of me and no oncoming traffic. The car suddenly applied the brakes, hard (along with an alarm and notice on screen that the emergency breaking system had been applied). It was only for a moment and the car dropped about 10 mph. What made the situation particularly troubling is that the road was very slippery in many areas as it was snowing and I was in a reduced salt area near a reservoir. If this had happened 500 yards earlier or later I would likely have gone off the road. This Tesla has the latest software update 2022.4.5. The dealer will be looking at the car in a week.
Car breaks hard suddenly when in cruise control- multiple times ands every time it’s in CC.
Car phantom braked when in a 2 lane highway when there was an approaching car in the opposite lane. No danger of the other car colliding but Tesla braked for no reason. Happened multiple times while using Autopilot.
I was driving on left lane of divided interstate highway in daytime with great visibility. There were no cars in front of me. I was using Tesla Autopilot with speed limit set to 75mph. Suddenly car applied brakes hard and within second of my reaction time dropped speed to 40mph, before I was able to press accelerator to override braking. Two cars behind me had to slam on the brakes and one had to swerve to avoid rear end collision. This phantom braking in very good conditions was totally unexpected and nearly ended up in high speed rear end collision with my wife and kids in the car.
Several times during our first long trip in our new Model Y, it slammed the brakes on for no reason with cruise control enabled. We were traveling on interstate 80, with speed limits typically 75-80mph. In some cases, we slowed from 80mph to 55mph due to these unexplained braking events and were in serious danger of being rear ended more than one time. Conditions were sunny, clear, and there was absolutely no reason the vehicle should have braked when it did. No objects on the road, no other vehicles next to or in front of ours. It was completely unexpected and dangerous!
Multiple Occurrences - I use cruise control only - not Autopilot. Vehicle randomly applies the brakes with no traffic or obstructions. Most times it is momentary where the car drops 1 or 2 mph and then returns to set speed. Yesterday (2/11/2022) it twice initiated a hard brake and dropped the speed 10 mph before I could intercede. This is a very dangerous situation! Last week, another Model Y passed me on the highway and I counted 10 brake flashes in a mile. I then experienced 3 myself. Seems to happen more when the sun is low.
driving southbound on hwy 101 coming from Atascadero going to Buellton. section of highway had 2 lanes in each direction. center divider was narrow - no trees. there were no cars in front of me. car suddenly braked. i looked and saw a large truck traveling north bound. that was the only other vehicle on the road. the first time this happened (a couple of weeks ago) I swerved onto the shoulder so i wouldn't get hit. This time, knowing what was happening, i hit the gas and got back to my traveling speed. no collision or damage. but you have to tell Tesla to fix this
The contact owns a 2022 Tesla Model Y. The contact stated while driving 60 MPH with the cruise control feature activated, the vehicle independently decelerated. The contact stated that while on a two-way street with another vehicle approaching, the vehicle abruptly stopped. The contact stated that the Forward Collision-Avoidance Adaptive Cruise Control feature was not operating as designed. The contact stated that the safety scope feature of the vehicle was too close causing the vehicle to erroneously brake whenever another vehicle was nearby. There was no warning light illuminated. The vehicle was taken to the local dealer and the contact was informed that the failure was a common failure. The contact was also informed that the manufacturer was aware of the failure and was in the process of implementing a software update to fix the issue. The vehicle was not repaired. The manufacturer was not contacted. The approximate failure mileage was 700.
Phantom breaking. While on traffic aware cruise control, we have experienced several episodes of sudden hard breaking for no reason. Fortunately, no one was following closely. The car is available for inspection. Hard sudden unexplained breaking increases risk of rear end collision. No inspections have been performed. But I did discuss it with a Tesla mechanic. He was familiar with the problem and stated that even tho my vehicle does not have radar, it has the bracket and the wiring so it can be installed later. Supply chain issues was mentioned as a possible reason for its absence. No warnings prior to breaking. Simultaneous with phantom breaking is audible alarm. This last occurred yesterday Feb 10, 2022 mid morning. Good road conditions.
Adaptive Cruise Control Random hard braking while in use. Vehicles directly behind need to take corrective action to avoid collision. Not an isolated incident. 75% time I use cruise control, I have a random braking event. No / Maybe. It appears to be a common problem. No No
Multiple occurrences of phantom braking phenomenon with cruise control engaged. Happened while driving into setting sun or at night. The car seemed to confuse shinny spots in the road (ice patches and tar repairs particularly at the crest of a hill or bridge) as a vehicle and apply the brakes. The braking was usually very aggressive and in one case almost resulted in a high speed rear end. Adjusting control parameters as available form the software did not have any effect. Have not had the car inspected at this point. No warning was given by the system but you can see a phantom image appear on the virtual display during the episode.
While driving on a single lane road in Bismarck, ND in low light conditions the car did what we call phantom braking anytime a oncoming car would be approaching.
When cruise control (called autopilot) is engaged, the car will slam on the brakes for no apparent reason, endangering everyone around us. Sometimes it happens as frequently as several times a minute. It is particularly bad on 2 lane roads when cresting hills and when trucks are in the opposite lane, but it’s not limited to those situations. When we took the car to the Tesla repair shop, they closed the ticket after informing us that it is a “known software issue” with no resolution currently. So the problem was not fixed, but the ticket was closed anyway.
I do not have full self driving on my car. However, the cameras installed are active when I use just normal cruise control. Trying to drive between the Minneapolis area to Pipestone, MN on Christmas day the car several times hit the brakes for me unexpectedly while in cruise control. We were on various roads, mostly at night, and with many times no seeable vehicles nearby. Other times it would be a vehicle coming at us in the proper lane next to us. I cannot use cruise control on this car for fear that a car will rear end me.
Car consistently brakes unexpectedly when another large car is passing going the opposite direction. There have also been times they shadows cause the same result. I believe this is referred to as phantom braking and it makes the adaptive cruise control unusable and dangerous.
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