my key fob won't unlock my Toyota Corolla E140 (2006-2013), what can I do?

Solution

1. Preparation

• Tools Required: Small flathead screwdriver, new key fob battery (CR2032).
• Safety Warnings: Ensure the vehicle is in park before proceeding.

2. Replace Key Fob Battery

1. Open the Key Fob:

   • Use the small flathead screwdriver to gently pry open the key fob case.
   • Take care not to damage the casing during this process.

2. Remove Old Battery:

   • Note the orientation of the old battery (positive and negative sides).
   • Remove the old battery and dispose of it properly.

3. Install New Battery:

   • Insert the new battery (CR2032) in the same orientation as the old one.
   • Ensure it is seated correctly and securely.

4. Reassemble Key Fob:

   • Align the two halves of the key fob and press them together until they click into place.
   • Verify that the key fob buttons are functioning and the indicator light illuminates when pressed.

3. Reprogram Key Fob (If Necessary)

1. Enter Programming Mode:

   • Sit inside the vehicle with all doors closed.
   • Insert the key into the ignition and turn it from "OFF" to "RUN" five times within 10 seconds, ending in the "RUN" position.

2. Confirm Programming Mode:

   • The door locks will cycle to confirm that the vehicle is in programming mode.

3. Program the Key Fob:

   • Press any button on the key fob. The doors should lock and unlock to confirm successful programming.
   • Repeat for additional key fobs if applicable.

4. Exit Programming Mode:

   • Turn the ignition to the "OFF" position to exit programming mode.