Scion tC Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Scion tC
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Scion tC ProblemsCEL - Error Code 420: Catalytic Converter
Check Engine Light Illuminated
Problem: Diagnostic Showed Error Code 420: "Catalytic Converter Efficiency Below Threshold (Bank 1)
Solution: Free Replacement by Dealer Under California 7yr/70k or Federal 8yr/80k Warranty Covering Emissions Parts
An illuminated Check Engine Light could be caused by a defective VVT-i controller, which changes cam timing for optimal power. Updated parts are available and the repair may be covered under the powertrain warranty.
Some vehicles may develop a condition where they cannot be shifted from "Park" to "Drive" and/or multiple warning lights illuminate when exposed to extreme cold conditions (-14 degrees F) or lower. Our technicians tell us the ignition (IG) relay should be replaced with an updated part to correct this concern.
Scion tC QuestionsWill adding a cold air intake affect my warrenty? (1 answer)
I want to enhance the performance of my vehicle. I am currently under a 3 yr warranty. Would swapping my stock intake with a after market intake void my warranty?
Scion has been discontinued now. Does this mean they wont be supporting the car anymore? What happens once my warrenty runs out?
My car rollsback a lot worse than any other automatic car i've seen. It's like it's a manual. How do I help prevent this?
Scion tC RecallsLoad Rating Label Inaccurate After Accessory Installation
The vehicle certification label may have the incorrect load carrying capacity listed on it. Toyota will provide owners with a corrected label, and dealers will aid in installation if necessary free of charge to resolve the concern.
The vehicle certification label may indicate the improper load carrying capacity rating for the vehicle. This is because accessories were added to them after the vehicle was built, changing the available load that the vehicle can handle carrying. Vehicle owners will be provided a corrected label and dealers will aid in installing them free of charge to resolve the concern.
Specific parts of the rear suspension may not have been torqued properly when installing the rear coil springs. As a result, the rear suspension arms may detach, increasing risk of a crash. The dealership will replace the bolts, nuts, rear suspension arms and rear suspension member sub-assembly free of charge to resolve the concern.