2005 Jeep Grand Cherokee Laredo Reset Warning Light

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A warning light can be reset and turned off in your 2005 Jeep Grand Cherokee Laredo. The on-board diagnostics computer receives error codes from sensors positioned throughout the vehicle. There are various types of warning lights in the Laredo, including ones for the anti-lock braking system, the engine and the supplemental restraint system. Whatever the warning light, you can quickly and easily reset the light yourself right from your home garage using a tool that can be purchased from your local auto parts retailer.

Tools Used[edit]

Code scanner
Ignition key

Reset Warning Light[edit]

  • Find a port under the dashboard on the driver's side. Examine the port to make sure it's the same size and shape as the code scanner connector. Plug the code scanner into the port. The Laredo's battery will automatically power on the scanner.
  • Examine the menu on the code scanner. It will display the error codes corresponding to the warning lights on your instrument panel. Unplug the code scanner.
  • Fix the problem or perform the maintenance that generated the code.
  • Reinsert the scanner in the port. Look for the "Delete" or "Erase" button on the faceplate of the scanner. If there isn't one, scroll through the menu using the arrow keys. Select the "Erase Codes" function. Wait for the main menu to return.
  • Put the key in the ignition and start the engine. Examine the instrument panel to make sure the warning light has gone off.

Tips & Warnings[edit]

  • You can go to your local auto parts retailer and borrow a code scanner to read your vehicle's codes and reset the warning lights for free.
  • You can disconnect the battery to reset the warning light, but this isn't recommended. Doing that erases other data in the computer, such as the clock, radio and alarm settings.