2010 Cadillac CTS-V Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2010 Cadillac CTS-V
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2010 Cadillac CTS-V ProblemsCheck Engine Light Due to Gas Cap Issue
A Loose or worn gas cap may cause Check Engine Light to illuminate.
The throttle position sensor (TPS) on the Cadillac CTS-V is notorious for failure which causes:
- Check engine light
- Reduced Power message
- OBD trouble code P2135
This issue is related to the throttle position sensor, and can be caused by faulty wiring to the TPS, bad connection at the TPS, or a failed TPS.
To correct this issue, the wiring harness, connector, and throttle position sensor must be inspected, tested, and/or replaced. The most common cause is a faulty TPS.