2021 Tesla Model 3 problems & reliability
662 owner complaints filed with NHTSA for the 2021 Tesla Model 3, alongside 22 safety recall campaigns. Last verified Sep 21, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several components.
16 complaints report injuries (19 injured, 8 deaths reported).
Federal crash records (FARS 2020–2023): 2021 Tesla Model 3 vehicles were involved in 30 fatal crashes with 18 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Forward Collision Avoidance → | 407 | 61% |
| Service Brakes → | 125 | 19% |
| Vehicle Speed Control → | 123 | 19% |
| Unknown / Other | 93 | 14% |
| Electrical System → | 78 | 12% |
| Lane Departure → | 32 | 5% |
| Visibility/wiper → | 30 | 5% |
| Steering → | 26 | 4% |
| Power Train → | 17 | 3% |
| Structure → | 16 | 2% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 25 reported components →Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Among the 41 complaints that included a usable odometer reading, the median reported incident mileage was 10,445 miles (middle 50% between 2,000 and 33,000 miles).
Complaints by incident year
What owners report
“The front suspension became loose and produced a clunk while driving. The vehicle was taken in the same day. Two independent shops examined it and neither could perform the repair. One reported that a nut for the lower suspension link fasteners was still loose inside the vehicle structure and could be heard moving…”
Suspension · filed Sep 17, 2026
“After a Tesla-delivered over-the-air software update, my 2021 Tesla Model 3 equipped with Hardware 3 experienced loss of the rear-view camera along with other camera and Autopilot-related functions. The exact date the condition first appeared is unknown, but it occurred after the software update. Camera calibration…”
Lane Departure · filed Sep 16, 2026
“Interior camera circuit failed in the main computer as diagnosed by Tesla, it disables most safety features of the car, no collision warning or avoidance, no automatic emergency breaking, no lane departure warning or correction, no reverse cam, no cruise control or self driving, and probably more. Only Tesla can…”
Forward Collision Avoidance · filed Sep 10, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- FSD Collisions in Reduced Roadway Visibility Conditions
Engineering Analysis EA26002 · opened Mar 18, 2026 · open
- Traffic safety violations while Full Self Driving ("FSD") is engaged
Preliminary Evaluation PE25012 · opened Oct 7, 2025 · open
- Compliance with Standing General Order 2021-01 Reporting Requirements
Audit Query AQ25002 · opened Aug 20, 2025 · open
- Actually Smart Summon sessions resulting in low-speed impacts.
Preliminary Evaluation PE24033 · opened Jan 6, 2025 · closed Apr 3, 2026
- FSD Collisions in Reduced Roadway Visibility Conditions
Preliminary Evaluation PE24031 · opened Oct 17, 2024 · closed Mar 18, 2026
- Recall 23V838 Remedy Effectiveness
Recall Query RQ24009 · opened Apr 25, 2024 · open
- Sudden Unintended Acceleration
Defect Petition DP23002 · opened Jun 29, 2023 · open
- Defect Petition Interlock Request
Defect Petition DP23001 · opened Apr 7, 2023 · closed Mar 18, 2026
Technical service bulletins
85 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2021 Tesla Model 3. The 10 most recent:
On certain Model 3 vehicles, brake lines may be corroded beyond acceptable limits, which may result in loss of brake fluid. Loss of brake fluid will result in a customer facing alert if the fluid reaches the…
SB-26-33-001 · Service Bulletin/Repair Instructions · issued May 8, 2026
On certain Model 3 vehicles, brake lines may be corroded beyond acceptable limits, which may result in loss of brake fluid. Loss of brake fluid will result in a customer facing alert if the fluid reaches the…
SB-26-33-001 · Service Bulletin/Repair Instructions · issued Feb 11, 2026
A firmware diagnosis feature is being introduced on Model 3 and Model Y vehicles that monitors wheel alignment over time. This feature detects changes in wheel alignment that may be related to incorrect tire pressures…
SB-25-31-004 · Service Bulletin/Repair Instructions · issued Jun 24, 2025
Tesla does not provide physical owner's manual copies. Instead, all available owner’s manual content is integrated into the vehicle software, and only the content relevant for a given vehicle, based on vehicle…
fsd-12-5-4-1_s3xy.pdf · Over The Air · issued Sep 30, 2024
Tesla does not provide physical owner's manual copies. Instead, all available owner’s manual content is integrated into the vehicle software, and only the content relevant for a given vehicle, based on vehicle…
fsd-12-5-4_s3xy.pdf · Over The Air · issued Sep 30, 2024
Tesla does not provide physical owner's manual copies. Instead, all available owner’s manual content is integrated into the vehicle software, and only the content relevant for a given vehicle, based on vehicle…
fsd-12-5-3_s3xy.pdf · Over The Air · issued Sep 30, 2024
Tesla does not provide physical owner's manual copies. Instead, all available owner’s manual content is integrated into the vehicle software, and only the content relevant for a given vehicle, based on vehicle…
2024.38_s3xy.pdf · Over The Air · issued Sep 30, 2024
Tesla does not provide physical owner's manual copies. Instead, all available owner’s manual content is integrated into the vehicle software, and only the content relevant for a given vehicle, based on vehicle…
2024.26.9_s3xy.pdf · Over The Air · issued Sep 30, 2024
Tesla does not provide physical owner's manual copies. Instead, all available owner’s manual content is integrated into the vehicle software, and only the content relevant for a given vehicle, based on vehicle…
fsd-12-5-4-1_s3xy.pdf · Over The Air · issued Sep 30, 2024
Tesla does not provide physical owner's manual copies. Instead, all available owner’s manual content is integrated into the vehicle software, and only the content relevant for a given vehicle, based on vehicle…
fsd-12-5-4_s3xy.pdf · Over The Air · issued Sep 30, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2021 Tesla Model 3 has 22 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2021 Tesla Model 3?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Among complaints with usable mileage, the median reported incident mileage was 10,445 miles. This does not predict when a particular vehicle will develop a problem.