Tesla Model Y Complaints (2021)

1,061 consumer complaints on file.

#11708542January 3, 2026
SUSPENSION
Both front half shafts failed and had to be replaced by Tesla. I did research and this part is known to be substandard, was recalled in China, and remains a problem in the US.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708424January 2, 2026
ELECTRICAL SYSTEM
The contact owns a 2021 Tesla Model Y. The contact stated that while the vehicle was parked, the contact observed the code BMSA079 on the computer, and messages "Vehicle Unable to Charge to Maximum Charge Level" and “Maximum Charge Level Reached - Reduced Maximum Charge Levels" were displayed. The vehicle was taken to a dealer, and it was determined that one coil in the battery was inoperative, and the dealer reduced the charge and refused to increase the battery charging level. The manufacturer was notified of the failure. The failure mileage was 155,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708085December 31, 2025
SERVICE BRAKES, UNKNOWN OR OTHER
Picked up car from tesla service on 12/30/2025. On [XXX] at around [XXX] I had pressed the car break and suddenly accelerated and lead to crashing into the pole. I am concerned about the safety and if it is drivable. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11708023December 31, 2025
ELECTRICAL SYSTEM
The vehicle’s high-voltage battery and charging system experienced repeated failures, preventing charging while the vehicle was parked. This issue occurred three times: January 2024: Charging error “BMS_a079. Unable to charge” appeared. Vehicle was stranded and required service intervention. Mileage ~28,125. November 2024: Same charging error during winter travel, vehicle stranded mid-trip, creating safety risk for passengers. Mileage ~38,744. September 2025: Charging error recurred mid-trip, vehicle had to be left at a service location. Mileage ~48,918. All incidents were reported to Tesla under battery warranty. Repairs were attempted each time, but the problem recurred. A repurchase request was submitted after the third incident and was denied, with only a goodwill service credit offered. Safety concerns include the risk of being stranded, particularly during long trips or in winter conditions, which could affect passengers and other road users. The battery and charging system were inspected by Tesla service personnel after each incident, and the failure was confirmed each time.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11705202December 15, 2025
VISIBILITY/WIPER, UNKNOWN OR OTHER, ELECTRICAL SYSTEM
In May 2025, Tesla pushed an over-the-air (OTA) software update overnight while the vehicle was parked. When the vehicle was started the following morning, the update had failed mid-process and stalled at approximately 50%. Immediately upon startup, the backup camera and navigation/maps stopped functioning. The vehicle has been unable to complete subsequent software updates since. Tesla service later inspected the vehicle and indicated that the main computer/ECU was stuck in a loop and required replacement. The backup camera and navigation loss occurred immediately following the OTA update and persisted for several months despite multiple service attempts. Due to the vehicle’s rear design and limited rear window visibility, operating the vehicle in reverse without a functioning backup camera significantly impairs visibility. Even when using mirrors or physically turning to look backward, rearward visibility is restricted. As a result, the loss of backup camera functionality presents an ongoing, daily safety hazard during normal vehicle operation.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704381December 11, 2025
POWER TRAIN, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, SEAT BELTS
In early Nov 2025 my Tesla Model Y began intermittently showing warnings about the forward collision warning system and multiple sensors being offline. Tesla service replaced a faulty connector on Nov 3. On Nov 15, 2025, about two weeks later, the car had a sudden drivetrain failure while I was parking on a steep hill. I heard a loud bang from the front of the car and the vehicle immediately lost drive power and had to be towed. Tesla diagnosed a failed front motor inverter that blew the high-voltage pyrofuse and damaged the 12V battery; they replaced those parts. The vehicle is available for inspection and the repaired components and records are with Tesla. After that repair the car needed another visit for alignment and has continued to show worrying behavior: “VCFRONT offline/unable to contact VCFRONT” in the service menu, repeated “autopilot computer overheating” messages, intermittent loss or reduction of regenerative braking (braking feel changes unpredictably), a rear right seatbelt malfunction warning (later inspected and cleared by Tesla), and what appears to be significantly increased battery drain compared to before the inverter failure. This has now resulted in four service visits within about a month, all at Tesla service centers (no police, insurance, or independent shops involved). Tesla has confirmed the inverter/pyrofuse/12V failure and says the overheating was due to an air pocket in the cooling system, but the VCFRONT messages, inconsistent regen braking, and increased drain have not been fully resolved or clearly explained. I am concerned that a sudden loss of power, loss of regen, or failure of VCFRONT/autopilot systems could recur at speed or in traffic, creating a serious safety risk. Please note that I'm only able to view partially-complete paperwork from the latest service appointment in the Tesla app. I have requested this documentation from Tesla and will be able to provide all the service reports and communication as a follow-up.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704000December 9, 2025
ENGINE, ELECTRICAL SYSTEM
I am filing this complaint regarding a high-voltage battery defect in my 2021 Tesla Model Y. The vehicle has been diagnosed by Tesla Service, and both the technician and service advisor confirmed that the high-voltage battery has an internal short. This is a critical failure involving the primary energy/storage system of the vehicle. Despite acknowledging the internal failure, Tesla is denying warranty coverage for the battery replacement. They have stated that failure is internal, and is not caused by anything external The failure was not caused by an accident, environmental exposure, or improper use. This appears to be a component-level defect within the 2021 Tesla Model Y battery packs Considering Tesla has issued prior service bulletins for Model Y high-voltage battery quality issues in adjacent model years, this may indicate a broader pattern of battery defects. They are trying to charge people over $12,000 for battery replacements that should be covered by tesla due to poor workmanship and materials used. Many have had to have multiple battery packs replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703701December 8, 2025
STRUCTURE:BODY
Frunk (Hood) has been randomly opening at times when the car is parked. Today it opened after being parked at my office parking lot for 3 hours. I am concerned that this can occur while driving, especially on the highway, potentially causing a deadly accident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703481December 6, 2025
UNKNOWN OR OTHER
Tesla's Full Self Driving (FSD) stopped my car on trolley tracks today, and would have stayed on the tracks for a minute if I hadn't taken control and driven off the tracks. This occurred in downtown San Diego, where the trolley (light rail) has many level street crossings. They are well marked. You are not supposed to enter the zone around the tracks until the vehicle ahead of you has moved far enough for you to be able to cross the tracks and get safely past them. I was using FSD. It drove my Tesla onto the tracks before the car ahead of me had given me room to get off the tracks. The line of traffic was stopped for a red light. I would not have been able to drive forward until the light changed, perhaps over a minute. So, I took over and manually drove the car into the adjacent lane, which luckily was empty, and off the tracks. If a train had come while FSD was still in control, this would have killed me, and perhaps other nearby people. There was no warning message or other indicator.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701878November 28, 2025
SEAT BELTS
Left rear passenger seatbelt stopped working. There are no visible issues with the belt, metal plug or receptacle, but for some reason the seatbelt will not engage nor click in to secure the belt onto the passenger. This is a safety issue as my daughter typically sits in this seat and she cannot safely sit there now without a functioning seat belt.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11700791November 21, 2025
SERVICE BRAKES, STEERING, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
The car has a feature called "curvature assist" that takes control of braking and steering at times when using cruise control. The incidents are at times surprising as there is no curvature present but the braking is suddenly applied. This is a surprise for both the driver and any following traffic. The car would be safer if this feature could be disabled but that is not possible.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11700389November 19, 2025
SUSPENSION
The front suspension on my 2021 Tesla Model Y developed progressive creaking and groaning noises during low-speed turning, especially in parking lots or when maneuvering. The noise began intermittently around 45,000 miles and became much louder by around 86,000 miles, which made me concerned about a potential safety issue before a long family trip. The sound comes from the front lower suspension area and indicates that something may be loose or failing. I am worried about the possibility of losing steering control if the suspension components separate or shift while driving, especially with my children in the car. The Tesla Service Center in Lisle, Illinois inspected the vehicle and informed me that both front lower lateral links and both front lower compliance links must be replaced (all four front suspension links). The repair estimate is about $1,600. This problem appears identical to the condition described in Tesla’s campaign/recall SB-21-31-003 / NHTSA 21V835, which involves improperly torqued front lower lateral link fasteners on 2020–2021 Model Y vehicles. My vehicle shows identical symptoms and identical components, but my VIN does not appear in the recall. I contacted Tesla corporate support by email requesting a safety/goodwill review, but I have not received any response. I believe this issue is safety-related and may indicate that more vehicles should be included in the existing recall. I am attaching the Tesla service diagnosis confirming the required replacement of all four front suspension links.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11700358November 19, 2025
ELECTRICAL SYSTEM, POWER TRAIN, VEHICLE SPEED CONTROL
Detailed Description of the Defect: Friday Incident: While picking up my son from school, the vehicle abruptly disabled multiple safety and driver-assist features. The car rolled backward on a slight incline, failed to display any surrounding vehicles on the FSD visualization, and retained accelerator input even after I removed my foot from the pedal. The vehicle continued to speed up slightly in Drive and Reverse without my input. Soft resets did not resolve the issue. Monday Incident (Collision Caused by Malfunction): On Monday morning, the same malfunction occurred. As I reversed into my garage with the door opening, the car again held the accelerator input after I lifted my foot, causing the vehicle to continue moving backward unexpectedly. The vehicle struck my garage door, causing property damage and a dent to the trunk. This was not driver error. It was unexpected propulsion after pedal release — an extremely dangerous condition.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11699553November 15, 2025
UNKNOWN OR OTHER
I dropped my kids to school and started reversing the car without seatbelts. Thinking that I will get out of the parking lot and then put the seatbelt on. Car will stop and goes into park mode. Somehow I came out of the parking lot and about to put and drive again same thing. Car will go into park mode. Somehow I started coming out of the parking lot and took a pause. Same thing again car stops and goes into park mode. It was almost the car behind me about to hit. I guess this is a bug of the “Hold” mode.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698390November 9, 2025
SUSPENSION
My 2021 Model Y at 49,865 miles had a safety-critical failure of the "front lower compliance and lateral links." The Tesla technician confirmed it was a "safety issue."
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697715November 5, 2025
LATCHES/LOCKS/LINKAGES, ELECTRICAL SYSTEM
The contact owns a 2021 Tesla Model Y. The contact stated that while driving uphill at an undisclosed speed, there was an abnormally loud pop coming from the vehicle. No warning light was illuminated. In addition, the contact stated that the vehicle lost automotive power and rolled away in reverse downhill towards oncoming traffic. The contact was able to avoid oncoming traffic and reverse onto the shoulder of the road; however, the driver’s side rear driver’s door failed to unlatch or open as intended while using the interior door handles. A local tow truck arrived on scene, and the passenger’s side door failed to open as intended with the exterior door handle. The vehicle was towed to a local dealer, where it was diagnosed, and determined that the 12-Volt battery needed to be replaced. The vehicle was repaired but remained at the local dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 60,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697124November 3, 2025
SEAT BELTS
Both rear seat belt buckles (driver-side rear and center) fail to latch securely. The metal tongue inserts fully into the buckle but does not lock with an audible click and releases immediately upon light tension. This prevents the seat belts from restraining passengers in a crash. - No visible debris, damage, or contamination in either buckle. - Issue occurs consistently on multiple attempts and with different seat belt tongues. - Vehicle is 2021 Model Y Long Range with 83,610 miles. - **Problem first noticed yesterday (November 2, 2025)**. - Tesla Service has refused repair under warranty, stating the vehicle is out of warranty, despite this being a critical safety component governed by FMVSS 209. This is a **safety defect**, not normal wear. The rear seat belts are **inoperable**, rendering the rear seating positions **unsafe and non-compliant with federal safety standards**. Similar failures are widely reported by other Model Y owners on NHTSA and Tesla forums. REQUEST: Please investigate this recurring seat belt buckle latching failure in Tesla Model Y vehicles. A recall or safety improvement campaign may be warranted.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697086November 3, 2025
ELECTRICAL SYSTEM:12V/24V/48V BATTERY, STRUCTURE:BODY:DOOR:HANDLE:EXTERIOR
This incident appears to relate to NHTSA ongoing investigation at Tesla's low voltage battery system failure causing door handle malfunction. (September 26, 2025) 2021 Model Y front and rear doors (all four) was locked down with a seven years old child inside the car at home garage driveway. Mom unable to open up doors from exterior. A few hours later, left driver door was able to open but other passengers door remained locked down. (October 2, 2025) Sent Model Y to Tesla service center and identified low voltage battery and vehicle controller failure. Tesla technician replaced those electrical components with service fee charged.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697063November 2, 2025
SERVICE BRAKES, ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
On October 2, my Model Y battery was replaced with a defective cell. Tesla service center replaced the battery. The vehicle could not charge or operate, making it unable to be driven. Today, November 2, while driving my car, my Tesla ABS system and other battery components experienced total failure while driving. For a brief period of time, I was unable to brake completely and my vehicle felt like it was skidding. At the time this occurred, my 1 year old daughter and pregnant wife were in the vehicle. This could have been much worse.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11696758October 31, 2025
SUSPENSION
The contact owns a 2021 Tesla Model Y. The contact stated that while driving at an undisclosed speed, there was a loud clunking sound coming from the rear driver’s side of the vehicle. There was no warning light illuminated. After the failure had occurred, the mechanic who towed the vehicle informed the contact that the failure could be related to a detached axle. The vehicle was towed to the dealer, where it was diagnosed and determined that the front suspension lateral link had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. After researching, the contact discovered NHTSA Campaign Number: 21V835000 (Suspension). The contact expressed concerns that the vehicle should be included in the recall due to the similarities between the reported failure and the recall summary. The approximate failure mileage was 45,483.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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