Assist problems of the 2015 Tesla Model S

Eight problems related to assist have been reported for the 2015 Tesla Model S. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Tesla Model S based on all problems reported for the 2015 Model S.

1 Assist problem

Failure Date: 01/29/2026

Tesla Model S has a notorious back hatch latching failure. It’s a flawed design that every replacement is a “when” and not “if for failure. As an owner its failed be about 4-5 times in 5+ years of ownership. The hatch back latching issue causes cruise control as well as their autopilot steering navigation feature to be disabled when latch starts acting up or failing to fully close, which are helpful safety components to keep your car on the road going at proper speeds and staying in lane. Reporting this in hopes someone pushes Tesla to do something about this flaw that should be a manufacturers defect.

2 Assist problem

Failure Date: 02/14/2024

Unknown.

3 Assist problem

Failure Date: 04/14/2023

The issue began during the week of April 10, 2023. I started to experience significant steering wheel resistance in 90 degree intervals. My initial assumption was the power steering was starting to fail. The amount of force required to turn became progressively worse towards the latter half of the week. However, there were no warning lamps or messages indicating there were issues with the car. On the morning of Friday, April 14th after dropping my kids off at school, I was using the vehicle's autopilot function while turning on an eastbound interstate on-ramp and noticed the car began to veer off course towards the concrete ramp barrier, forcing my to immediately grab the wheel to prevent a collision. It felt as if the wheel was stuck again at one of the 90 degree intervals mentioned above. I've driven this route countless times utilizing the feature and have never had an issue. It's worth noting that the resistance was felt regardless of whether or not the autopilot feature was turned on. That afternoon I took my vehicle to the local Tesla service center and the representative immediately said it sounded as if the u-joint was going bad. They took the car in and had the part replaced within 24-hours. That evening I browsed numerous forums and learned this is a common issue due to the u-joint's lack of protection and exposure to the elements. I have never submitted a safety complaint before but the fear I experienced that morning combined with the lack of any warning lamps or notifications from the vehicle compelled me to share. I do believe this is a broader issue that needs to be reviewed.

4 Assist problem

Failure Date: 09/13/2022

Fatal Tesla accident. Cause unknown. Vehicle suddenly left the highway resulting in fatal collision. Tesla model 2015 s d.

5 Assist problem

Failure Date: 09/10/2022

Tesla sent an “over the air” software update to my car that compromised the original functionality as designed at the date of manufacture. The software includes advancements that when installed on the original mcu1 hardware causes connectivity issues and significant delays in the Tesla autopilot system, making the safety assistance system untrustworthy. Tesla informed me this is expected behavior when using the new software on the mcu1 hardware and that it was on the customer to upgrade to the newer mcu2 hardware at a cost of $2250 even when the car is covered under a full warranty.

6 Assist problem

Failure Date: 04/24/2021

The car thinks the trunk is open but it is not. As a result, the car doesn't stop beeping as a warning to a trunk that is fully closed. In addition, I can't open the trunk at all. When driving the car I can no longer use autopilot and other safety features of the car. I also can't lock the care. All and all, the car in unusable, because of an issue with the trunk, this is definitely a faulty design.

7 Assist problem

Failure Date: 11/17/2020

Tesla Model S 2015 90d. I have a service appointment come November 30th 2020 for this but I have had multiple occurrences of the main panel and side panel display go completely crash and black screen on me. Disabling both the "autopilot" v1 feature in mid use on a highway going 60+ mph, gps and other important assistant information such as vehicle speed etc(because screens are black). Its a very jarring and dangerous experience going fast on the highway and having the car "crash" in such a way that just gas and breaking are all that are suddenly left working in an instance(especially when you have that auto pilot feature engaged on a turn). I strongly recommend NHTSA to continue their investigation towards this as there are likely serious flaws with the emmc system and software these early Model S cars released with. I am afraid Tesla is going to give me the run around and not handle the situation appropriately, which would generally be a consumer recall when events as dangerous as this occur. I would say these full system crashes have occurred at least 5+ times since I have owned the car in 2015 and it seems like a matter of time before a serious crash could be caused by this faulty engineering . Tesla currently is trying to do as much damage control around it offering to look into a replacement part but no guarantees its covered by their warranty. As a software engineer myself it feels very much like when hardware starts to go bad, like a system internals beginning to fail due to corrupt memory and storage. These early Tesla Model S'ES are a ticking time bomb to public roads(I say this as a Tesla fan, when working the cars are incredible to drive, when they dysfunction its a very serious problem because of the nature of these software driven vehicles their hardware/software has to be rock solid).

8 Assist problem

Failure Date: 06/19/2020

8:15 am, 6/19/20, I head a sickening thwack from the street from abt 300 yds away. Eerily, bec something very large was hit with no sound of squealing brakes or cries, I went out front to look left without seeing anything. Then I looked right and saw a man crouched to the ground beside a car. I iooked further rt & saw the back of a man thrown face-first into my trees. I didn't imme register what I was looking at until I recognized the body as my husband, screamed, & ran to him. He was snoring loudly. I was afraid to touch him, so I hovered over him calling his name. He did not respond. I turned to the street, screaming at passers-by to call 911. The crouching man said he had, but I was fearful of him & thought, "how do I know you have? why are you so far away? didn't you even come over to check on him?" I kept screaming as drivers stopped their cars and people gathered. Our 19-yr-old daughter came running out of the house, followed by our 17 and 15-yr-old sons. An ambulance came and took my husband, refusing me because of covid. Then I spoke with 1 of 2 police while the other spoke to the driver of the Tesla. He said the driver admitted to being on his phone as the car drove itself, never seeing my husband and driving 45 mph. When he said I could leave, I went to the er where I was imme told my husband had sustained severe brain damage to both sides of his brain and catastrophic other injuries. A police investigator met me at the er. Investigation of the vehicle & download of the computer were completed at police station. I was told the Tesla had been in 1 prior ax, but had not registered "an event" on 6/19. Lawyer present did say the car was in "autopilot" & sev systems had malfunctioned: airbag, braking, warning sound, veering away, etc. I was later told he was doa, but brought back. 10 mos later, husband is a non-communicating quadriplegic, severe tbi, feeding tube.


Other Lane Departure related problems of the 2015 Tesla Model S



Model S Service Bulletins
Model S Defect Investigations