Electrical system

Scion TC Electrical problems by year

20 complaints filed with NHTSA about the Scion TC's electrical system. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.

Electrical complaints by model year

2005 2006 2007 42008 2009 2010 2011 2012 2013 2014 2015 2016

Year	Electrical complaints	Crashes	Injuries
2015	2	0	0
2014	4	1	1
2012	1	0	0
2011	1	0	0
2009	2	0	0
2008	4	0	0
2007	3	0	0
2005	3	0	0

Latest TC electrical complaints

2009 Scion TC Electrical system Engine & cooling

sold a AS IS TRADE IN vehicle that had no warning lights on dashboard or window info on safety defective emmisons and ecm and has not been very helpful with my vehicle I have not been able to drive because of safety concerns with recent discovery of codes that showed after getting a new battery for my new way of commuteing to work and live daily activity like most with a car I laid 2,050.15 and was told many times at test drive that it was amazing running sports car and mentioned he only had to replace valve cover...

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gasket before it was able to be sold and at time of payment with test drive only showing signs of low rpm and throttle idle on test drive so trusting that the owner was telling me the truth I purchased and drove car home I needed gas because fuel was empty and when I went to pump into tank I got major clicking of the handle like my new car wouldn't take fuel for some weird reason owner at dealership was called 5 mins after buying on auto lot to express major concern with pumping gas he again said vehicle was inspected with nothing of concern now finding that it is going to cost many thousands to repair emmisons system And fault codes with total programing with abs and to cost more than anyone can honestly afford now I'm drained of my savings and have no hope of finding a solution so my car isn't parked because of failure of hidden defects I would of never invested my whole savings on a car if information was shown for defective vehicle system parts.i want the owner to honor his misleading auto fraud and in anyway help with safety emmisons compromised part replacement so my vehicle I purchased will drive like promised at business or replace it with a vehicle that is safe for the road without hidden errors I am very emotionally distressed over finding a solution for this unexpected misfortune I've been experiencing life gets very difficult without assess to a safe vehicle it has cost me to much I shouldn't have to suffer for his fraudulent actions

2009 Scion TC Electrical system Engine & cooling

I believe my emmisons had malfunctioning part # 77740-21011 called used auto sales agent 5 mins after purchasing on 3/1 because I was at gas station having unusual fuel pumping problems that made it very difficult to put gas in had a constant clicking happen and the dealer on the phone told me there was no issues with my new vehicle and after checking my warning lights to see if any were signaling and had no active warnings for service engine soon or maintenance so I believed him I drove home and within two days...

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tried to replace my battery because cars battery looked old I disconnected the battery and on accident reset my whole car and with rpm being lo I checked with simple scan tool that I after a accidentall reset to better my battery lifespan noticed I had a entire system code read concerning emmisons I am having a Toyota, Lexus,scion technician visit tommrow to get better understanding because I cant afford to pay the 400 for basic test from Toyota.and it has been 4 weeks since it has been parked at my house because of uncertainty about error codes and if it is safe to drive feel like my purchase had dealer take of warning lights to show major emmisons defect and with the cost to have Toyota replace and have scions system reprogram so it relearns it will cost more than I paid for vehicle I have messaged who sold me vehicle at business in Bradenton since day one of purchase 3/1 and was sold to me as is without any window sticker explaining defects have called Toyota dealership at 3 locations including Sarasota to ask for scion specialist assistance to get my vehicle in driving condition and with my battery reset and it being incomplete until I find exactly why my vapor canister is throwing some unusual codes by experience tech .no insurance representative or manufacturer police with situation with vehicle and it's safety.with 34 calls to places that do low cost diagnostic tests I been told only person that can do what is needed to vehicle is Toyota dealer

2011 Scion TC Electrical system

Odometer Fraud. The contact purchased a 2011 Scion TC. The contact stated that the vehicle was advertised on Facebook Market place with 183,000 miles. The contact stated that while purchasing the vehicle, it was discovered that the odometer displayed 118,000. The vehicle was a private sale. At the time of purchase, the seller informed the contact that he had discovered there was a mileage discrepancy upon retrieving the Carfax report after purchasing the vehicle from the previous owner. The contact stated that based on the Carfax report, the mileage was 173,822 on February 6, 2024, but the mileage on the odometer was 118,000.

2014 Scion TC Electrical system

On several occasions the housing around the air conditioner fills with water from condensation, the drainage tube is narrow and clogs, which causes the water to drip out of the housing and into the passenger side interior where it swamps the carpeting from front to back. I know ac normally does not qualify as a safety concern but to my understanding there is electric wiring that runs under the carpet that is certainly not designed to be under an inch of water and then there is the potential for harmful mold to...

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develop from the wet carpet. The dealer will charge to clear the clog but they have since told me there is a permanent fix (an ac casing with better drainage) which costs more than $2000 to install. A simple search on the internet shows toyota has been ignoring this design flaw and this problem since the model redesign in 2011. They had plenty of time to address this issue which can effect the health and safety of the occupants. I know a narrow tube drain line seems like a minor thing but this does not seem to happen in most cars. While it has been a concern for scion tc owners since 2011. I drive a 2014. There was plenty of time for toyota to offer a better casing or a solution to this problem over the years. I have reached out to toyota and they refuse to do anything since my car is now out of warranty despite that my car was in for this temporary repair several times while it was under warranty and they never offered the permanent fix until now.

2015 Scion TC Electrical system Lights Visibility & wipers

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. ...

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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....

2015 Scion TC Transmission & drivetrain Electrical system Acceleration & cruise control

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.

2014 Scion TC Electrical system Wheels & tiresCrash1 injury

Was commuting back to work from lunch break when out of nowhere I lost control of steering and braking of my vehicle crashing into a stone wall before I could pull my emergency break after the vehicle could not slow down on a city street in motion

2005 Scion TC Electrical systemFire

Tl* the contact owned a 2005 scion tc. When the contact entered the vehicle, she noticed a flickering light and smoke coming from the console. The contact stated that the console and roof of the vehicle were melted. The fire department was called and determined that there was an electrical fire. A police report was not filed and there were no injuries. The vehicle was not towed or taken to a dealer to be diagnosed or repaired. The insurance company declared the vehicle a total loss. The manufacturer was not notified of the failure. The failure mileage was 172,000.

2014 Scion TC Electrical system

After having the vehicle for about 6 months, first, the passenger door began to intermittently respond to locking/unlocking commands. Neither the key fob nor the switch in the vehicle would work, and eventually the door lock had to be manually operated. A few weeks later, the driver side door began having the same issues. The vehicle has not been involved in any crashes according to online databases. No damage to either door has occurred that could compromise any electrical mechanism with exposure to the elements. ...

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A friend had the same problem with his 2007 toyota 4runner and was told the door lock actuators are known to fail in certain year vehicles made by toyota. I am pretty sure this is the issue with my 2014 scion tc now. I can understand the part failing on his vehicle since it was about ten years old at the time, however my car is only 4-5 years old. The keyless entry system on my scion currently only operates the rear hatch, for now. I am only able to secure my vehicle if I manually lock both doors, and then press lock on the key fob to arm the anti-theft system. I cannot access the passenger side door with the key as there is no key hole provided on that side. If so many of toyota's door actuators are failing like this, they should recall and replace the poorly manufactured versions they installed on the vehicles since the parts are so expensive not to mention labor. My friend ended up trading his 4runner and left the toyota brand altogether. I have always preferred toyota and actually encouraged him to buy one as well. However, I am having a difficult time convincing myself from taking the same route as him.

2014 Scion TC Electrical system

Tl* the contact owns a 2014 scion tc. While driving various speeds, the "maintenance required" and engine warning indicators illuminated without warning. The vehicle was taken to toyota momentum in fairfield, california where it was determined that rodents had destroyed the wiring harness in the vehicle due to the soy based construction of the wires. The wiring harness was replaced. The manufacturer was made aware of the issue and stated that there was no recall on the vehicle. The failure mileage was approximately 51,000. The vin was not available. *Tt

2008 Scion TC Electrical systemFire

Center console burst into flames causing an internal fire, while stationary.

2008 Scion TC Electrical system Engine & cooling

Tl* the contact owns a 2008 scion tc. While driving 60 mph, the vehicle stalled without warning. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 113,000.

2007 Scion TC Electrical systemFire

Tl* the contact owned a 2007 scion tc. While driving approximately 25 mph, the driver observed flames coming from the front passenger side floorboard. The driver pulled over and exited the vehicle. The fire department extinguished the fire. There were no injuries reported. A fire and a police report were filed. The vehicle was destroyed and towed to a junk yard. The manufacturer was not made aware of the failure. The failure mileage was approximately 117,000. The vin was unavailable. Updated 09/22/16*lj *as

2012 Scion TC Electrical system

To date, I have had my vehicle repaired three times for the same malfunction. I worked with manufacturing and sales organizations and I have failed to receive substantiation beyond your organization's due diligence that my vehicle is safe for my family. These organizations have failed to diagnose the specific malfunction with my vehicle (electrical) and subsequently have been gutting my vehicle piece by piece devaluing it.

2008 Scion TC Electrical system Body, doors & structure

First, the rubber hatch release melted & dripped onto my rear bumper. (I suspect that faulty wiring of some sort kept the release somewhat engaged, which melted the rubber.) Then the hatch latch/lock would only completely release after multiple attempts. Finally, after unlocking the hatch & engaging (i thought) the release, the entire panel pulled off the car, leaving it dangling by the wiring harness. *Js

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data