Certain Standard Range Model 3 and Model Y vehicles that received the Lithium Iron Phosphate (LFP) HV Battery Retrofit did not receive the 2nd row floor reinforcement plate, which provides additional protection for the LFP HV Battery.
full bulletin at NHTSA ↗2021 Tesla Model 3 body problems
severe 13 complaints filed with NHTSA · avg repair $1,500 · see body across all vehicles →
Complaints
13
Recalls
0
Avg fix
$1,500
2crashes
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering body on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Certain Model 3 and Model Y vehicles may need a different Occupant Classification System (OCS) installed in the front passenger seat before servicing its subcomponents.
full bulletin at NHTSA ↗Certain Model 3 and Model Y vehicles may need a different Occupant Classification System (OCS) installed in the front passenger seat before servicing its subcomponents.
full bulletin at NHTSA ↗Certain Model 3 and Model Y vehicles may need a different Occupant Classification System (OCS) installed in the front passenger seat before servicing its subcomponents.
full bulletin at NHTSA ↗On some Model 3 vehicles, water may have leaked inside the trunk area through the trunk lid.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2021 Tesla Model 3s report eight distinct failure modes affecting body and door systems. Most critical is the rear-door design: both rear doors operate solely by electric button with zero mechanical override. Multiple owners state that if the 12-volt battery dies—particularly in a crash—rear passengers are physically trapped inside the vehicle. Tesla offers no retrofit for this year's model, though newer cars have the mechanical handle added.
Bumper attachment failures appear in multiple narratives. One owner's rear bumper separated from the frame entirely while driving 10-15 mph through standing water; it fell off a block away from the vehicle. Tesla service attributed it to water damage and offered no repair. Another owner reports a wide gap on the left rear side of the trunk that allows water infiltration during rain or car wash.
The frunk (front trunk) latch failed after replacement, opening on its own while parked. One passenger-side door handle is stuck open. Separately, a driver reports complete brake failure at 10 mph during a right turn, resulting in collision.
Most notable is narrative #1: the vehicle's Full Self-Driving beta software (version 10.3, firmware 2021.36.5.2, recall 21V-846) made the car swerve onto a curb unprompted at 35 mph on a city street. Damage came to $2,332. After two months, Tesla's promised investigation yielded no liability ruling, and the owner eventually paid out-of-pocket.
Same Tesla Model 3 body reports on nearby years: 2018 · 2019 · 2020 · 2023
Failure modes owners describe
FSD Self-Driving System Malfunction
Vehicle in self-driving mode made unexpected trajectory change, jumping curb to avoid phantom obstacle. Firmware version 10.3 release 2021.36.5.2 was subject to recall 21V-846.
When: 59,800 miles, during beta testing at 35 mph on city street
Symptoms owners cite: sudden trajectory change while maintaining speed; vehicle jumped curb without driver input; damage to bumper, wheel, flat tire
Repairs/costs cited: Repair bill $2,332.37 (bumper, wheel, tire); owner eventually paid on 12/22/21; Tesla service center completed work 10/27/21
Recalls/TSBs owners mention: Recall 21V-846 issued 10/29/21; Tesla promised investigation into liability but provided no resolution after 2 months
Rear Door Power-Dependent Release
Rear doors lack mechanical release handle; doors operate only via electric buttons. No manual override exists if electrical system fails, trapping rear passengers.
When: Design defect present from manufacture
Symptoms owners cite: rear doors cannot be manually opened without power; rear passengers trapped if battery dies; inability to exit vehicle in crash if electrical system fails
Recalls/TSBs owners mention: Tesla advises no retrofit planned for 2021 Model 3; newer models have mechanical release added
Rear Bumper Separation
Rear bumper detached from frame and fell off vehicle while driving through standing water at low speed.
When: 59,800 miles, during water crossing at 10-15 mph
Symptoms owners cite: abnormal sound from rear; bumper separated from frame; bumper found block away from vehicle
Repairs/costs cited: Tesla service center attributed to water damage; vehicle not repaired; owner referred to collision shop
Recalls/TSBs owners mention: No manufacturer assistance provided
Rear Liftgate/Trunk Safety Concerns
Automatic liftgate lacks audible warning and motion-detection sensors to prevent entrapment of children during opening/closing. Owner alleges risk of crushing injury or amputation.
When: Design defect present from manufacture
Symptoms owners cite: no audible warning during trunk operation; no motion detection to stop movement if obstruction detected
Trunk Lid Gap and Water Ingress
Wide gap remains between left side of trunk and frame when closed. Lid opens and closes normally but does not seal properly.
When: Unknown; gap present during normal use
Symptoms owners cite: visible gap on left rear side of trunk when closed; water leaks into trunk during rain or car wash
Front Frunk Latch Failure
Front trunk latch previously repaired but opened on its own while vehicle was parked.
When: Approximately 1 month after latch replacement
Symptoms owners cite: frunk opens while parked without driver input
Repairs/costs cited: Latch replaced approximately 1 month prior to failure
Passenger Door Handle Malfunction
Passenger door handle stuck in open position and inoperable.
When: Unknown
Symptoms owners cite: door handle stuck open; handle will not operate
Braking System Failure
Vehicle failed to brake when driver pressed pedal during right turn at 10 mph, resulting in collision with vehicle ahead.
When: Unknown mileage, during normal driving
Symptoms owners cite: brake pedal pressed but vehicle did not decelerate; collision resulted
Synthesized from 13 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
There is no manual door release for the rear doors. Thus rear passengers are at risk should the electrical system fail in a crash. Tesla should be required to provide a modification that allows rear passengers to manually open the rear doors.
I want to report an issue I have with Tesla concerning the damage that occurred to my vehicle as a result of a failure of Tesla FSD version 10.3 firmware release 2021.36.5.2 recalled by Tesla on 10/29/21 NHTSA recall number 21V-846. At noon on 10-24-21, I was testing the latest release of FSD as part of the beta program. My Tesla was in self-driving mode on a city street at 35 mph. This was…
Had body trouble with your 2021 Tesla Model 3?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the body problem on the 2021 Tesla Model 3?
It's a meaningful issue. 13 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $1,500.
At what mileage does the body typically fail?
Based on the 13 complaints filed, body issues most often appear around 59,800 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $1,500 for body repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to body?
No active recalls currently cover body issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2021/Tesla/Model 3.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.