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

509 words

Problem Statement

Learn how to replace the battery in your Toyota Corolla E170 key fob (2013-2019). Step-by-step guide with tools required and safety tips.

Affected Component

Electrical

Estimated Time

15-30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•Key fob not responding to button presses
•Difficulty unlocking or locking the doors remotely
•Warning light on dashboard indicating a key fob issue
•Reduced range for remote operation
•Key fob physically damaged or worn

Diagnostic Steps

1
Confirm that the issue is related to the key fob by testing it in proximity to the vehicle.
2
Check for other potential issues, such as a malfunctioning receiver in the vehicle.
3
Inspect the key fob for physical damage or corrosion at the battery compartment.

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

•Small flathead screwdriver
•Key fob opening tool

Parts Required

•CR2032 battery

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Solution

1. Preparation

Gather necessary tools and materials.
Ensure you are working in a clean, well-lit area.
Wear safety glasses to protect your eyes.

2. Open the Key Fob

Sub-step 1: Use a small flathead screwdriver or a key fob opening tool to gently pry apart the two halves of the key fob. Insert the tool into the seam and twist lightly to avoid damaging the plastic.
Sub-step 2: Carefully separate the halves until they are fully detached. Be cautious not to force them apart as this may cause damage.

3. Remove the Old Battery

Sub-step 1: Locate the battery inside the key fob; it is usually a CR2032 type coin cell.
Sub-step 2: Use the flathead screwdriver to carefully lift and remove the old battery from its compartment.

4. Install the New Battery

Sub-step 1: Take the new CR2032 battery and ensure the positive (+) side is facing up when inserting it into the battery compartment.
Sub-step 2: Press down gently to secure the battery in place.

5. Reassemble the Key Fob

Sub-step 1: Align the two halves of the key fob and press them together until they click into place.
Sub-step 2: Ensure the fob is securely closed and there are no gaps.

6. Test the Key Fob

Sub-step 1: Stand near the vehicle and press the lock and unlock buttons to verify that the key fob is functioning correctly.
Sub-step 2: Check the range to ensure it operates from a reasonable distance.