2009 Scion TC Electrical system Problems
- Complaints
- 2about this part
- Share
- 3%of 60 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the electrical system of the 2009 Scion TC, 3% of the 60 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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 tried to replace my battery because cars battery looked old I disconnected the…”
NHTSA complaint #11727625, filed 2026-03Related service bulletins
- 10111474Nov 12, 2015DD: In limited cases vehicles being serviced for ZE7 will require a replacement short block. Dealers will need to install the dowel pins between the short block and lower…
- 10111395Apr 10, 2015SSB: When servicing interior electrical switches and components, please note the precautions in this bulletin to avoid damaging electrical components and switches. Many…
- 10111202Apr 10, 2015SSB: When servicing interior electrical switches and components, please note the precautions in this bulletin to avoid damaging electrical components and switches. Many…
- 10200379Jul 7, 2014Immobilizer and Smart Key Reset
- 10132773Jun 6, 2014TSB: Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix…
- 10133905Jan 23, 2013Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix…
- 10133902Jan 16, 2013When servicing interior electrical switches and components, please note the precautions in this bulletin to avoid damaging electrical components and switches. Many lubricants…
- 10041144Jun 1, 2011Toyota: 2005-2009 scion tc. The airbag light is on with a stored trouble code. There is a wire harness problem.
- 10034471Feb 4, 2010Scion: techstream ecu flash reprogramming procedure. Flash reprogramming allows the ecu software to be updated without replacing the ecu. Flash calibration updates for specific…
- 10028734Jan 19, 2009Toyota: multiple warning lights illuminated, vehicle not shifting from park to drive, and other accessories becoming inoperative after the vehicle has cold soaked in sub freezing…
Electrical system: other model years
Other parts of the 2009 Scion TC
15 complaintsAir bags
9 complaintsBody and structure
8 complaintsVehicle speed control
8 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsOther or unknown
5 complaintsBrakes
4 complaintsLatches, locks and linkages
3 complaintsTires
3 complaintsTransmission and drivetrain
3 complaintsElectronic stability control
2 complaintsEquipment
2 complaints
← All problems reported for the 2009 Scion TC
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology