Illumination of the check engine light may be the result of a loose or worn gas cap .
The front and rear light bulbs are prone to premature failure. Our technicians tell us that the front bulbs can be very difficult to replace.
The throttle position sensor (TPS) on the Cadillac CTS-V is notorious for failure which causes:
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.
related to exterior-light, reverse-light, stay-on