Question about 2011 Chevrolet HHR

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Why do esc, traction, and engine lights turn on?

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Randy Ohler

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Check the engine codes first. Some codes will shut down the ESC and traction. Then Traction codes will shut down ESC. With out codes we just guess.

Posted on Mar 12, 2016


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2 Answers


Take it in to see which wheel is throwing the code. Some auto part stores let you use theirs for free. then check for corroded connectors or broken wires at the wheel bearings and speed sensors.
Clean corroded connections with a cleaner such as contax or acid wheel cleaner, then rinse and dry thoroughly and coat the female end of the connection with dielectric grease before reassembly.

Best of luck. These are GREAT cars!!!

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