Problems · NHTSA complaints
2015 Scion TC problems
Owners filed 22 complaints about the 2015 Scion TC with NHTSA between Apr 2015 and Jun 2026. The most-cited component is power train (6).
Complaints
22
Filed with NHTSA
Crashes
4
Reported by owners
Fires
0
Reported by owners
Injuries
3
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Power train6
- Air bags5
- Visibility/wiper3
- Electrical system2
- Visibility2
- Service brakes2
- Structure2
- Exterior lighting1
- Suspension1
- Vehicle speed control1
- Other / unknown2
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Oct 30, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
5
0
2
4
2
5
1
1
0
0
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2015 | 1 |
| 2016 | 5 |
| 2017 | 0 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 0 |
| 2025 | 0 |
| 2026 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Power train
6 reports
“Whining noise is heard when the clutch petal is released. Noise is coming from the input shaft bearing. Common failure on this model. Mechanic confirmed that is the issue. If the bearing completely fails could leave the car stranded and cause more damage to other transmission components. No warning lights but noise is very loud.”
Air bags
5 reports3 crashes
“The contact owns a 2015 Scion TC. The contact stated that the air bag warning light remained continuously illuminated while operating the vehicle. The contact stated that when the air bag warning light was illuminated, the horn was inoperable. The vehicle was not diagnosed or repaired. However, an independent mechanic informed the contact that the failure might be associated with an inoperable clockspring. The manufacturer was not notified of the failure. The approximate failure mileage was 130,000.”
Visibility/wiper
3 reports
“Over the past 4-5 years, 2015 scion tc has had numerous electrical issues. Both driver and passenger electric door locks do not work. Head and tail lamp lights burn out frequently. Seems like a grounding issue? Car failed to start August 2021 due to electrical problems. 3rd party mechanic fixed the issue. Toyota Dealer-installed automatic start fails multiple times before starting car. Basic electrical mechanisms for a car made in 2015 should not be broken/failing. 2019 Air Conditioner wouldn't drain. Had to investigate and personally drain the tubes behind the passenger and driver side-pannels behind center counsel. The entire draining system for the cars air conditioner had clogged. 2015 Exterior Vinyl Pillars on sides of windshield started to fade. Brought it to Westbury Toyota and they said the sun caused it. I didn't even have the car for 6 months yet....”
Electrical system
2 reports
“TRANSMISSION DOES A HARSH/JERK DOWNSHIFT WHEN COMING TO A STOP. IT DOES IT RANDOMLY, USUALLY WHEN COMING TO A STOP SLOWLY. IT'S NOT SAFE, FEELS LIKE THE CAR LURCHES INTO 1ST. TOYOTA RESET THE COMPUTER AND IT WAS OK FOR A BIT BUT CAME BACK. I'M THINKING IT'S THE SOFTWARE OF THE CAR. TOYOTA SAID IT'S A LEARNING TRANSMISSION, BUT SOMETHINGS WRONG. IT'S SCARY TO DRIVE IN TRAFFIC, AND ONLY HAVE 33K MILES. THE TRANSMISSION FLUID WAS CHANGE BY TOYOTA LAST YEAR WITH THE WS AND IT HAS NOT FIXED THIS ISSUE. I'M WORRIED THE CAR MAY STALL IN STOP AND GO OR LURCH SO HARD FIRM THE 2-1 DOWNSHIFT THAT I MIGHT HIT THE CAR IN FRONT OF ME AND CAUSE AN ACCIDENT.”
Visibility
2 reports
“TL* THE CONTACT OWNS A 2015 SCION TC. THE CONTACT STATED THAT WHILE PARKED AND SEATED IN THE VEHICLE, THE CONTACT HEARD AN ABNORMAL SOUND LIKE A SHATTERED GLASS. THE CONTACT EXITED THE VEHICLE AND BECAME AWARE THAT THE CENTER SUN ROOF GLASS HAD SHATTERED. THE CONTACT STATED THAT THE SUN ROOF HAD SHATTERED WITHOUT IMPACT OR INCIDENCE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 85,000.”
Service brakes
2 reports1 crash
“CANT HANDLE A INSTANT BRAKE.”
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.