Volkswagen Golf Seventh Generation (2013-2020) key fob not working how to fix it

Volkswagen Golf Eighth Generation (2020-present)

Error Codes

1 hour

Time

medium

Difficulty

medium

Severity

3 min read

477 words

Problem Statement

Learn how to diagnose and fix a non-working key fob for Volkswagen Golf (2013-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in the 'OFF' position while working on the key fob.

Symptoms

•Key fob buttons do not respond when pressed
•Vehicle does not unlock or lock with key fob
•Warning light on the dashboard for key or immobilizer
•Inability to start the engine with the key fob present
•Reduced range for key fob operation

Diagnostic Steps

1
Check the battery in the key fob for voltage using a multimeter.
2
Inspect the key fob for physical damage, such as cracks or water exposure.
3
Attempt to reprogram the key fob by following the vehicle's manual instructions.
4
Check for any error codes using an OBD-II scanner related to the key or immobilizer system.
5
Verify the vehicle's central locking system operation using the manual key.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

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

•OBD-II scanner
•Multimeter
•Small screwdriver

Parts Required

•Replacement key fob battery (CR2032)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the battery in the key fob for voltage using a multimeter.
2
Inspect the key fob for physical damage, such as cracks or water exposure.
3
Attempt to reprogram the key fob by following the vehicle's manual instructions.
4
Check for any error codes using an OBD-II scanner related to the key or immobilizer system.
5
Verify the vehicle's central locking system operation using the manual key.

Solution

1. Preparation

Gather necessary tools: OBD-II scanner, multimeter, small screwdriver, replacement battery (CR2032).
Ensure the vehicle is in a safe location with the engine off.

2. Battery Replacement

Use a small screwdriver to carefully open the key fob casing.
Remove the old battery (typically a CR2032) and dispose of it properly.
Insert the new battery, ensuring proper polarity (+ and -).
Reassemble the key fob casing securely.

3. Reprogramming the Key Fob

Sit in the driver’s seat with all doors closed.
Insert the key into the ignition and turn it to the "ON" position without starting the engine.
Press the lock button on the key fob for approximately 15 seconds.
Turn the key to the "OFF" position and then remove it from the ignition.
Test the key fob by attempting to lock and unlock the vehicle.

4. Key Fob Functionality Test

With the key fob reprogrammed, check the functionality by standing at a reasonable distance from the vehicle and pressing the lock/unlock buttons.
If the key fob still does not work, further inspection of the vehicle’s central locking system may be necessary.