how to reset check engine light

Asked by May 25, 2011 at 08:10 AM about the 2007 Chevrolet HHR LS

Question type: Maintenance & Repair

4 Answers

1,745

Either use a scan tool from your local parts store, or just disconnect you negative battery terminal for about 5 minutes.

11 out of 11 people think this is helpful.

Do you have to disconnect the battery to replace number one coil

51,695

Disconnecting the battery is not the best idea as you may wipe out settings that you want. It is better to use a scan tool to delete the old codes. Auto parts stores can do it for free.

51,695

Replacing a coil can be done with the battery connected.

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