2021 TESLA MODEL Y Complaints

Reporting numerous instances of ghost braking while Adaptive Cruise Control is enabled. These are instances of sudden deceleration of the car when no other vehicles or obstructions present while traveling on 4 lane highways at freeway speeds. Requires overriding ACC feature by engaging the accelerator to maintain speed and avoid a possible rear end collision. Rear end collision is the most of the highest risk when this sudden deceleration occurs. No warnings were given before the deceleration. These episodes are most noticeable when traveling at freeway speeds of 65+ mph in open terrain with no curves. One instance could be attributed to a shadow across the roadway, however, more times than not shadows across the roadway didn't cause ghost braking. The point being that there often is no rhyme or reason that can be identified or repeated. This problem is a known problem that Tesla is aware of as well as the NHSTA.

While driving at highway speeds the adaptive cruise control suddenly slams on the brakes for no reason. It is more frequent when there is little to no traffic. This happens regularly, it is not an isolated incident.

On multiple occasions the vehicle in question exhibited dangerous behavior while the "Autopilot" cruise control system was engaged. This is not "fully automated cruise control FSD" but the standard "Autopilot" system. Each of the incidents listed below occurred on multiple dates, multiple times and in various times of day, speeds and weather conditions. 1. While driving at speed, the vehicle, upon detecting the cars in an adjacent lane separated by pole dividers were stopped, suddenly slammed on the brakes in an attempt to stop the car, risking a collision from behind, even with my own lane completely clear of other cars 2. While driving at speed, the vehicle, upon detecting a higher or lower posted speed limit sign alongside the road, suddenly braked or accelerated without warning, risking a collision in front, or behind 3. While driving at speed, the vehicle, upon detecting emergency flashing lights from a passing police, ambulance or fire vehicle, regardless of that vehicle's location or direction, suddenly decelerated without warning, risking a collision from behind 4. While driving at speed, the vehicle, upon detecting a change in lane width, the loss of a lane marker, or the presence of a concrete barrier in place of a lane marker, suddenly swerved to attempt to remain in the center of the changed lane width, and on more than one occasion, almost swerved into a barrier or another vehicle

On October 12th, 2021 my vehicle had multiple instances of phantom braking that occurred on highway 10 in California while traveling Eastbound with autopilot engaged. This was a trip in excess of 400 miles. Two of these instances occurred as my vehicle approached rainwater washes where metal barriers appear on both sides of the road ( see 33°38'10.5"N 115°05'01.6"W for an example ). The third instance occurred when a truck in the slow lane began drifting towards my lane slightly. In each of these three instances the car did a heavy braking at which time I quickly disengaged the autopilot by tapping the brake and speeding back up. Thankfully no accident but these three occurrence were scary. I reported phantom braking into the voice command database of the vehicle after each occurrence. According to a tesla representative these are saved.

A. 3 or 4 times while I was driving on the highway with cruise control the car very suddenly de-accelerated even though the road ahead was completely clear. This happened before. B. Also later on the same trip the car hit a part of a tire tread left on the road. The underside of the car was apparently damaged. The screen message was "okay to drive. power reduced". Over next several hours the power, and later other functions like air conditioning, and maximum speed was reduced from 69 to 67 to 65 to 62 mph and message "okay to drive" was repeated. Suddenly while car had message of 62 mph maximum speed it suddenly wouldn't go over 37 mph. Seconds later it dropped to maximum 13 mph while still showing "okay to drive - 62 mph max speed". I pulled over on shoulder and car wouldn't go into drive function.

While in cruise control, which is adaptive, vehicle will abruptly slow down for no know reason. Usually there are no other vehicles, no highway obstructions, nothing that I can see. Tesla finally told me that this is a "known issue", after making a service appointment, and them calling me to cancel the appointment.

Car regularly brakes for no reason causing near accidents constantly and posing a huge safety risk. Additionally, the full self driving option is totally unusable. Both these issues have been reported to Tesla multiple times. We have been told the only way we can have an actual working cruise control is to disable the full set aware driving without refund for that Bert expensive option

The contact owns a 2021 Tesla Model Y. The contact stated that the vehicle had received a software update through the Wi-Fi from Tesla. The contact stated that the camera for the autonomous self-drive feature had become excessively sensitive sounding the alarm for the Occupant Detection and Lane Assist at the slightest movement. The contact stated that the issue caused multiple distractions while driving. The contact had not taken the vehicle to the dealer. The contact had informed the manufacturer of the failure. The manufacturer referred the contact to the dealer. The approximate failure mileage was 36,314.

The driver infotainment system locks up randomly. Which makes all safety features, turn signal indicators, backup camera, reverse mode (mirrors drop), speedometer, collision sensors, etc NON-FUNCTIONAL. Until either the system crashes or finally unfreezes. This also removes one-pedal driving as well when frozen. Version is 2022.16.3

Airbag is OFF for a 123 lb front seat passenger (adult female). This is an intermittent fault -- the passenger airbag status changes during the drive. Possibly half the time the airbag is OFF, when it needs to be ON. Two Tesla Service Center visits were made. The first Tesla Service Center visit reproduced the fault but did not correct it. The second Tesla Service Center visit did not reproduce the fault and did nothing. The passenger airbag status OFF is displayed on the touchscreen. The faulty component(s) could be the seat occupancy sensor(s). This has been an issue since vehicle delivery. The vehicle is available for inspection upon request.