my Toyota Corolla E170 (2013-2019) key fob isn't working how to fix it

Solution

1. Preparation

• Gather necessary tools: a small flathead screwdriver, a new battery (CR2032 for most Toyota key fobs), and a multimeter.
• Ensure the vehicle is parked and in a safe location.

2. Open the Key Fob

• Using the small flathead screwdriver, gently pry open the key fob casing at the seam.
• Take care to avoid damaging the plastic casing.

3. Replace the Battery

• Remove the old battery from the key fob. Note the orientation of the battery for correct replacement.
• Insert the new CR2032 battery, ensuring it is installed in the correct orientation (+ side facing up).

4. Close the Key Fob

• Align the two halves of the key fob casing and press them together until they snap back into place.
• Ensure that there are no gaps and the casing is securely closed.

5. Test the Key Fob

• Stand near the vehicle and press the lock/unlock buttons to check for functionality.
• Ensure the indicator light on the key fob illuminates when a button is pressed.

6. Reprogram the Key Fob (if necessary)

• If the key fob does not work after battery replacement, refer to the owner’s manual for reprogramming instructions or consult a Toyota dealer.