2009 Cadillac STS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2009 Cadillac STS

2009 Cadillac STS Problems

The Check Engine Light With Code: P0011, P0014, P0021, P0024, P0341, P0346, P0336, and/or P0391

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.

Check Engine Light Due to Loose or Worn Gas Cap

A loose or worn gas cap could be cause the Check Engine Light to illuminate.

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

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2009 Cadillac STS Reviews

Stay on top of the maintenance. Don't treat it like a comaro when its a Cadillac. Don't complain about the small things.. Can't speak for the other sts owners, but mine is fun to drive and looks "saf" (black on mat black) :) peace.
car drive tran roars bad not suspenison system rough and sounds like a rattle trap will not let inbody ride in car $40,.00 ans i am asamed of it dealer not helpful se no evil hear no evil speake no evill you sould be assamed of a car like this 12,000 miles and sould be in junk yard car run good. sick

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