How to Replace a Battery in a Key Fob

Written by david sandoval
  • Share
  • Tweet
  • Share
  • Email

Automotive key fobs are used to lock and unlock doors, set the alarm (if the vehicle is so equipped) and operate accessories (such as remote start). A key fob's battery may eventually run down and require replacement.

Skill level:

Other People Are Reading

Things you need

  • Small Phillips or flathead screwdriver
  • Replacement key fob battery

Show MoreHide


  1. 1

    Remove the retaining screw from the back of the key fob. Open the key fob case and remove the battery cover.

  2. 2

    Remove the old battery from the battery receptacle. Install the new battery in the receptacle, ensuring that the new battery is oriented in the same way as the old battery.

  3. 3

    Replace the battery cover and close the key fob case. Insert the screw and tighten gently. Test the key fob to ensure that the battery replacement was successful.

Tips and warnings

  • Since the key fob is programmed to your vehicle specifically, no further configuration should be needed.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.