How to Reset the Check Engine Light on a 2005 Jeep Grand Cherokee

The check engine light in many cars turns on when the onboard computer receives an error code or detects that something is not running correctly. Depending on the problem it could be something that needs to be replaced very soon or it may be a general maintenance reminder. Many people, however, find this light annoying and want it turned off without having to take it in for service.

Things You'll Need

  • Jeep Grand Cherokee
  • Code scanner
  • Wrench

Using a Code Scanner

  • Locate the code scanner hook-up under the driver's side dashboard. Plug in the scanner and let it read the error code.

  • Use the scanner's reset function to reset the light. Next time you start up the vehicle the light should remain off. The problem is an intermittent one if the light stays off.

  • For further maintenance go to an auto-parts store or contact a service shop to ask what the error code refers to and decide if you want it fixed now or later.