Seat Belt Related Problems of the 2026 Tesla Model Y

Table 1 shows one common seat belt related problems of the 2026 Tesla Model Y.

Table 1. Seat Belt related problems of Tesla Model Y

Problem Category Number of Problems
Seat Belt problems
5

Seat Belt problem #1

I am reporting a safety issue with my 2026 Tesla Model Y. The rear seatbelt system has experienced three separate mechanical failures, each requiring service and replacement. The vehicle was purchased new from Tesla, inc. . Due to these repeated failures, I have had to adjust seating arrangements for my two children in booster seats, including temporarily relocating one child to the middle seat when a side seatbelt became inoperable. The issue has since recurred on the opposite side. This pattern represents a significant and ongoing safety concern.

Seat Belt problem #2

New vehicle was delivered from the factory with an inoperable seat belt. After removing a trim piece, I found the seatbelt wrapped around several trim clips inside the pillar.

Seat Belt problem #3

Right rear passenger seat belt malfunctioned after owning the vehicle for one month. When I called the service department to discuss the issue, they said the part would take 5 days to come in. They denied me a loaner car to drive while I waiting for the part. The malfunction was confirmed by the dealership the following week and required replacement. I still cannot believe that a company who values safety, expected me to continue to drive my children in a car that had a malfunctioning seatbelt, until the part came in.

Seat Belt problem #4

1) full supervised drivingd entered 3 lanes of on coming traffic. A truck avoided broad siding the drivers door of my vehicle by entering on coming traffic driving in the opposite direction. Luckily the on coming traffic stopped for the truck. The navagation system seemed to be lost as well. 2) the driver's seat belt alert alarm began to continually go on stating that the seat belt was not fastened. It was brought into the shop twice for repair. The seat was replaced. A few weeks later the front passenger seat belt alert started doing the same thing with no one or objects on the seat. It was brought to the shop. 3) upon delivery of the vehicle the low windshield washer fluid warning came on. I supplied more fluid twice with no resolution. The shop replaced a faulty hose and reservoir. The windshield washer control could hardly and barely spray any fluid omto the windshield. The shop adjusted the pressure which has quicky failed. A technician determined it is a new design and is working fine. A technician verified to me that the windshield washer fluid does clean the camera's for supervised driving. I do not use the fsd due to the flaw in this supposed new design. The shop stated that they had difficulty reproducing the seat belt issue and kept the car for a few days twice in order to reproduce the random occurances. The vehicle has been inspected at 2 service shop locations. No police or insurance representatives have inspected the vehicle. In regard to the seat belt issues there were messages, warning lamps and siren alerts in some cases for more than an hour every few seconds while driving. In regard to the windshield washer fluid the warning light was on as soon as I picked up the brand new car on August 27, 2025 the seat belt issues seem to be resolved thus far, the windsield washer fluid is ongoing.

Seat Belt problem #5

I leased this brand new but demo car with 1850 miles, 2 months old from Tesla seattle. This is a brand new total redesign-2026 Model Y. I was assured that they do multiple point testing before delivery and I had to trust their process. Unlike any other car dealers, I was not allowed to test drive this car before I sign the lease. The car was not in great condition (in addition to the expected wear and tear as a demo car). A) it's charged to only 60% battery rather than the full 80%. B) the stains all over suggest that apparently no one did any finish work as expected. I have pic proofs available upon request. The delivery manager jill manually wiped off some stains when I pointed them out. C) there was a dent of 2-3 inches on the hood which indicates a possible past accident. After driving the car home, serious issues were identified (because no test drive was allowed before I take the lease of the car). 1) the driver's car seatbelt does not lock upon a sudden pull, mimicking the situation in a crash. This is a completely recall issue as it could cause ppl to die, and myself as a mom of a small child included. It locks about 3 out of 10 times. My previous cars- mercedes, Toyota, Hyundai and BMW all lock on each sudden pull! 2) the passenger seatbelt has the same problem. 3) the backseat seatbelts are much better, and locks much more often than driver's and passenger's. It locks about 8 out of 10 times. I went to Tesla lynnwood wa on Jun 6 and the service manager cayla and tech said there is no issues despite that my seatbelt performs so much worse than (1) other two 2026 Model Y, one of which is a newer demo (2) older Model Y, 2025 and prior, locks on each sudden pull as well! (3) all 3 new 2026 Model Ys all have much less reactive seatbelts! another issue I had which makes me needing to have this car replaced under lemon law is, (a)my phone key gets disconnected randomly and I had to use card key all the time (b)my 2nd card key can't open the car at all!.


Seat Belt related problems in other Tesla Model Y model year vehicles:



Model Y Service Bulletins
Model Y Defect Investigations