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Parking brake is releasing on its own. I would press the clutch in when starting the car and as soon as i release or press down again it will release. Car is also in neutral when I am doing this so it has nothing to with it being in gear and releasing. The parking brake should on release when I pull the button or if i am in gear and want to pull off.

TOYOTA SUPRA 2023 UNKNOWN OR OTHER

Electronic parking brake will intermittently release unintentionally. Replication scenario is to set the parking brake, depress clutch pedal, put transmission in neutral, then release the clutch pedal. This can happen right after starting the car, or after the car has been in operation.   Note that this is the manual transmission version of the car. Other owners have reported similar problems.

TOYOTA SUPRA 2023 SERVICE BRAKES

This vehicle (in particular the new manual transmission equipped one) has a system which automatically disengages the electronic parking brake when you try to drive away with it applied, and that system does not have enough interlocks or "rules" that govern when it activates.  In certain circumstances, the car will automatically disengage the parking brake with as little user input as simply letting the clutch pedal out - even if you've just come to a stop and applied the parking brake immediately before letting the clutch pedal out.  Given that the only safe way to exit the vehicle with the engine running is with the parking brake applied and the car in neutral, this over-active system easily results in a rollaway vehicle hazard.  This happened to me twice and I didn't understand at the time what was going on, but I have mostly isolated the conditions under which it has happened.  The system seems to be looking for recent brake and throttle inputs, and if those inputs have been triggered recently then letting the clutch pedal out will automatically disengage the parking brake.  However, "recently" seems to be very liberal, as you can touch the brake and throttle and then wait at least ten seconds (and potentially longer) then let out on the clutch, and the system will automatically disengage the parking brake.  Additionally, the system does not seem to care if the car is in neutral or in gear.  The car is aware of what gear it's in at all times, as this information is displayed in the instrument cluster with R, 1, 2, 3, 4, 5, or 6 indicating which gear you've selected, or N for neutral.  Obviously if you're in neutral, you're not attempting to drive away, so the system should never activate when the car is in neutral.  I have additionally documented this issue in a video here: https://youtu.be/GXAR1Q-ApUQ

Going west bound on I30 in Arkansas traveling with the flow of traffic.  There was a transition part of the highway where it went from some asphalt repair to concrete roadway and when my car hit this the wheel seperated in a 360 degree pattern and the only thing holding the wheel together was the tire.  I believe the 19" wheel that Toyota used on this 2023 Supra has a factory defect and is very dangerous and needs to be looked into ASAP.  There was no damage to the car at all.

TOYOTA SUPRA 2023 WHEELS

When I start the car and put the transmission in neutral, the parking brake releases on its own. Depending where I am parked, the car will slowly roll. I usually just re engage the parking brake especially if i don't plan to drive at that very moment.  What component or system failed or malfunctioned, and is it available for inspection upon request? Parking brake  How was your safety or the safety of others put at risk? The vehicle can roll back or forward and can put others at risk.  Has the problem been reproduced or confirmed by a dealer or independent service center? No  Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No  Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No

2023 Toyota GR Supra — vehicle data sourced from FuelEconomy.gov.

Experience exhilarating performance with the 2023 Toyota GR Supra, boasting a powerful 382 hp engine and rear-wheel drive for dynamic handling. This two-seater coupe offers a thrilling driving experience with its impressive acceleration and top speed, all while maintaining a certified safety status.

	2020	2021	2022	2023	2024	2025	2026
product.price	—	—	—	$43,990	$44,690–$64,375	—	—
specs.engine_capacity	3 litre2998 cc(182.949 cu in)	2L	3 litre2998 cc(182.949 cu in)	2998 cc	3L	3L	3L
specs.fuel_type	Petrol	Premium	Petrol	Premium	Premium	Premium	Premium
specs.transmission	8 speed automatic	Automatic (S8)	6 speed manual	8 speed automatic	Manual 6-spd	Manual 6-spd	Manual 6-spd
specs.body_type	2 Seater Fixed-Head Coupé	Two Seaters	2 Seater Fixed-Head Coupé	Coupe	Two Seaters	Two Seaters	Two Seaters

Toyota GR Supra (2023) product.specifications