How to Turn Off the Battery Light on a Lincoln Town Car

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The battery light on your Lincoln Town Car is designed to alert the driver to an issue with the vehicle’s charging system. If your battery light comes on, you either have a bad battery, bad alternator or poor connection somewhere in the charging system. While a Town Car can drive for a brief period without proper operation from the charging system components, odds are the car will not start once it has been shut off without the assistance of a jump.

Things You'll Need

  • Gloves
  • Battery terminal wrench
  • Battery terminal cleaner
  • Battery terminal brush
  • Flashlight
  • Put on your gloves and remove the battery cables from the battery, using the battery terminal wrench. Remove the negative cable first.

  • Clean any corrosion from the battery terminals and cable ends with the battery terminal cleaner and brush. Clean the inside of the cable ends to ensure a solid metal-on-metal contact once you reconnect the cable to the battery terminal. Visually inspect the battery cables; if there is any significant corrosion buildup on the cables, replace them.

  • Reconnect the battery cables, positive side first.

  • Check to see if the light is still coming on. If not, monitor it for the next week or so while driving. If it is still coming on, move to Step 5.

  • Take the flashlight and visually follow the battery cables away from the battery. At each connection, make sure the cables are making proper contact and do not have any corrosion built up at the connection. If there is corrosion, disconnect the negative battery cable from the battery, then disconnect the cable from the site of the corrosion and clean the area with the cleaner and brush. Reconnect the cables, connecting the negative to the battery last, once you have it cleaned. Continue to clean and inspect the cables until you have inspected them all. Recheck the battery light when you are done. If the light stays off, monitor it for the next few days. If it is still on, move to Step 6.

  • Drive your Town Car to a repair facility and have the alternator and battery tested. In the event you cannot drive it, you can either have it towed to the repair shop or remove the alternator and battery and take them to a parts store to have them tested.

Tips & Warnings

  • If you have performed all these steps and the light is still coming on, take the Town Car to a Lincoln service department for further diagnosis.
  • Photo Credit Paul Tearle/Stockbyte/Getty Images
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