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
01 —By component

Complaints by component

One complaint can cite several components
  1. Power train6
  2. Air bags5
  3. Visibility/wiper3
  4. Electrical system2
  5. Visibility2
  6. Service brakes2
  7. Structure2
  8. Exterior lighting1
  9. Suspension1
  10. Vehicle speed control1
  11. 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
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20151
20165
20170
20182
20194
20202
20215
20221
20231
20240
20250
20261

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.

03 —Owner reports

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.”
Owner complaint to NHTSAFiled May 31, 2023Power trainODI 11524604

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.”
Owner complaint to NHTSAFiled Jun 24, 2026Air bagsODI 11746288

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....”
Owner complaint to NHTSAFiled Apr 13, 2022Electrical system, Exterior lighting, Visibility/wiperODI 11460618

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.”
Owner complaint to NHTSAFiled Mar 5, 2021Power train, Electrical system, Vehicle speed controlODI 11399316

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.”
Owner complaint to NHTSAFiled Apr 16, 2021VisibilityODI 11408420

Service brakes

2 reports1 crash
“CANT HANDLE A INSTANT BRAKE.”
Owner complaint to NHTSAFiled Apr 9, 2019Service brakesCrash reportedODI 11194978
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.