how to replace the battery in my Toyota Corolla E170 (2013-2019) key fob?

Toyota Corolla E170 (2013-2019)

Error Codes

15-30 minutes

Time

easy

Difficulty

low

Severity

3 min read

492 words

Problem Statement

Learn how to replace the battery in your Toyota Corolla E170 key fob. Step-by-step guide to restore functionality and prevent issues.

Affected Component

Electrical

Estimated Time

15-30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Be careful when using a screwdriver to avoid damaging the key fob or injuring yourself.

Symptoms

•Key fob not unlocking or locking the doors
•Range of the key fob signal decreased
•Dashboard warning light indicating a key fob issue
•Key fob buttons not responding
•Battery warning icon illuminated on the dashboard

Diagnostic Steps

1
Confirm that the key fob is indeed not functioning by attempting to unlock the doors from various distances.
2
Check for any physical damage to the key fob, including cracks or missing components.
3
Verify the battery type required for the key fob by looking up the specifications in the vehicle manual or on the existing battery.

Solution

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Flathead screwdriver

Parts Required

•CR2032 battery

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Confirm that the key fob is indeed not functioning by attempting to unlock the doors from various distances.
2
Check for any physical damage to the key fob, including cracks or missing components.
3
Verify the battery type required for the key fob by looking up the specifications in the vehicle manual or on the existing battery.

Solution

1. Preparation

Gather necessary tools: flathead screwdriver, new battery (typically CR2032), and a soft cloth to prevent scratches.
Ensure you are in a well-lit area to avoid losing any small components.

2. Open the Key Fob

Locate the Seam: Identify the seam of the key fob where it opens.
Insert the Flathead Screwdriver: Gently insert the flathead screwdriver into the seam.
Twist to Open: Carefully twist the screwdriver to pry open the key fob without damaging the casing.

3. Remove the Old Battery

Identify the Battery: Locate the battery inside the key fob.
Note Battery Orientation: Take note of the battery orientation (positive and negative sides).
Remove the Battery: Using your fingers or the screwdriver’s edge, carefully lift the old battery out of its compartment.

4. Install the New Battery

Insert New Battery: Place the new battery in the same orientation as the old one, ensuring the positive (+) side is facing the correct direction.
Press Down Securely: Make sure the battery fits snugly in its compartment.

5. Reassemble the Key Fob

Align the Halves: Align the two halves of the key fob back together.
Press Together: Firmly press the two halves together until you hear a click, indicating they are securely closed.