2009 Cadillac CTS Problems

RepairPal has identified the most common problems with the 2009 Cadillac CTS as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

Vehicles with certain V6 engines may illuminate the Check Engine Light one or more of the following codes: P0011, P0014, P0021, P0024, P0341, P0346, P0336, or P0391. Our technicians tell us that some vehicles may require a powertrain control module (PCM) software update to correct this issue. Other vehicles may have excess camshaft end play on one or both cylinder heads which will need to be corrected using special procedures outlined by GM.

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

Failure of brake components can be caused by contaminated brake fluid. To help prevent this the Brake fluid should be flushed at the very least every 60,000 miles.

Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.

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.