NHTSA (USA)Critical
At a glance
What can fail
The engine starter may overheat and catch fire due to wear on an internal component.
This page covers 6 recalls and 19 owner complaints for the 2021 Toyota Supra.
Electrical system complaints make up the largest share of what 2021 Supra owners report, with several describing concerns serious enough that they disconnected the battery or parked the vehicle outdoors as a precaution against fire risk. A smaller but notable group of owners report engine-related issues, though the specifics vary across those complaints. One recurring electrical symptom involves brake system warning messages appearing intermittently, including critical stop-driving alerts, with owners describing multiple dealership visits without a resolution. On the HVAC side, at least one owner reports a blend door actuator problem causing the driver's side to blow cold air while the passenger side stays warm, with heat only functioning properly at the highest temperature setting.
19
Total Complaints
1
Crash-Related
By System
The 2021 Toyota Supra has 6 recalls, the most serious being multiple fire risks: a fuel tank weld that can fail and leak gasoline, and a starter relay that can corrode, short circuit, and ignite a fire even while the car is parked and off.
The starter relay fire risk appears across several filings covering different model year ranges, but the underlying problem is the same: water intrudes into the relay, causes corrosion, and can lead to a short circuit and overheating. One filing specifically notes this only affects vehicles with the 2.0-liter engine. Prior repair attempts did not fully resolve the issue for all affected vehicles, which is why multiple campaigns exist for the same defect.
On the engine side, a software issue in the engine management system can cause a loss of brake assist during startup. Full mechanical braking still works, but the pedal requires noticeably more force than normal, which can reduce stopping confidence in a sudden situation. This recall only affects vehicles with the 3.0-liter engine based on the model lineup described in the filing.
There is also a seatbelt concern: the retractor in one or both front seatbelts can fail to lock and pull the belt tight in a crash, reducing the restraint the belt provides at the moment it matters most.
At a glance
What can fail
The engine starter may overheat and catch fire due to wear on an internal component.
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Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
What the fix does
Dealers will replace the engine starter at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Water can leak into the starter relay, causing corrosion. This may lead to the relay short-circuiting and the starter overheating.
What the fix does
The engine starter will be replaced at a Toyota dealership to prevent the relay from failing.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The engine starter relay can corrode, causing it to overheat and short circuit.
What the fix does
Dealers will replace the engine starter at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
During engine startup, the engine management software may disable the power braking system. You can still brake manually, but without power assist.
What the fix does
Dealers will update your engine management software at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The passenger seat belt retractor may unlock too early before the belt fully retracts, reducing crash protection.
What the fix does
Dealers will inspect and replace the seat belt retractors if needed, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The weld joining the two halves of the fuel tank may not have been properly completed, which could cause the weld to break.
What the fix does
Dealers will replace the entire fuel tank at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
