Having problems with your 2007 Chevrolet Impala ?
How to reset your computer - 2007 Chevrolet Impala
Answers :
Disconnect the battery for a day or two and the computer will reset back to factory defaults, unless someone has connected a OBDC device and changed settings (OBDC readers cannot change settings, but some devices can, such as laptop computers with the necessary software and physical interface).
Repair Help & Product Troubleshooting for 2007 Chevrolet Impala
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