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Home/Cars/Volkswagen/Tiguan/Second Generation (2018-present)/my Volkswagen Tiguan's key fob not working how to fix it

my Volkswagen Tiguan's key fob not working how to fix it

Volkswagen Tiguan Second Generation (2018-present)

Severity: mediumDifficulty: medium30-60 minutes
3 min read
525 words

Problem Statement

Learn how to diagnose and fix a non-working key fob for your Volkswagen Tiguan. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Component
Electrical
Repair Time
30-60 minutes

Safety Warnings

  • ⚠Be careful when using tools to avoid damaging the key fob.

Symptoms

  • •Key fob buttons unresponsive
  • •Vehicle not responding to key fob signals
  • •Warning light on the dashboard indicating a key fob issue
  • •Inability to start the vehicle without using the physical key
  • •Battery in the key fob appears to be dead

Diagnostic Steps

  1. 1Check the battery in the key fob for proper voltage using a multimeter.
  2. 2Inspect the key fob for physical damage or wear.
  3. 3Attempt to reprogram the key fob using the vehicle's on-board programming procedure.
  4. 4Scan the vehicle's OBD-II system for any related error codes.
  5. 5Test the vehicle's receiver unit to ensure it is functioning properly.

Solution

Solution

1. Preparation

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

2. Replace Key Fob Battery

  1. Open the Key Fob:

    • Use a small flathead screwdriver to gently pry apart the key fob casing along the seam.
    • Be cautious to avoid damaging the plastic.
  2. Remove the Old Battery:

    • Take note of the battery orientation (positive and negative sides).
    • Carefully remove the old battery from its compartment.
  3. Install the New Battery:

    • Insert the new battery, ensuring it is placed in the same orientation as the old one.
    • Press down until it clicks into place securely.
  4. Reassemble the Key Fob:

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

3. Reprogram the Key Fob (if necessary)

  1. Enter Programming Mode:

    • Sit in the driver’s seat with all doors closed.
    • Insert the key into the ignition and turn it to the "On" position (do not start the engine) and then back to "Off."
  2. Program the Key Fob:

    • Press the "Unlock" button on the key fob within 30 seconds of turning the ignition back to the "Off" position.
    • Turn the ignition back to the "On" position and repeat the unlock button press.
    • Turn the ignition back to "Off" and remove the key.
  3. Test the Key Fob:

    • Try locking and unlocking the doors with the fob to ensure successful programming.

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
  • Multimeter
  • Replacement battery (CR2032)

Parts Required

  • Key fob battery (CR2032)

Additional Information

Component

Electrical

Repair Time

30-60 minutes

Difficulty

medium

Severity

medium

Tools

3 items

Parts

1 items

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