how can I fix the remote start not working on my Volkswagen Tiguan Second Generation (2018-present)?

Volkswagen Tiguan 2nd Gen (2018-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

576 words

Problem Statement

Learn how to diagnose and fix the remote start issue in your Volkswagen Tiguan. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shorts.
•Ensure the vehicle is in a secure area while performing diagnostics and repairs.

Symptoms

•Remote start button on the key fob does not respond
•Check engine light or other warning lights illuminated
•Vehicle does not start after multiple attempts
•Key fob battery is low or dead
•Indicator lights on the dashboard do not activate when remote start is attempted

Diagnostic Steps

1
Check the battery status of the key fob using a multimeter or by replacing it with a new battery.
2
Scan the vehicle's onboard diagnostic system (OBD-II) for any trouble codes related to the starting or electrical system.
3
Verify if the hood is securely closed, as some vehicles disable remote start if the hood is ajar.
4
Inspect the brake pedal switch functionality, ensuring that it operates correctly when pressed.
5
Confirm that the vehicle is in 'Park' mode, as remote start may not engage if the transmission is in any other gear.
6
Examine the vehicle's settings through the infotainment system to ensure that remote start is enabled.

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 flathead screwdriver

Parts Required

•Key fob battery (CR2032 or similar)
•Brake pedal switch (if needed)

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Diagnostic Steps

1
Check the battery status of the key fob using a multimeter or by replacing it with a new battery.
2
Scan the vehicle's onboard diagnostic system (OBD-II) for any trouble codes related to the starting or electrical system.
3
Verify if the hood is securely closed, as some vehicles disable remote start if the hood is ajar.
4
Inspect the brake pedal switch functionality, ensuring that it operates correctly when pressed.
5
Confirm that the vehicle is in 'Park' mode, as remote start may not engage if the transmission is in any other gear.
6
Examine the vehicle's settings through the infotainment system to ensure that remote start is enabled.

Solution

1. Preparation

Gather necessary tools and replacement parts.
Ensure the vehicle is parked safely and the engine is off.
Disconnect the battery to prevent any electrical shorts during repair.

2. Key Fob Battery Replacement

Open the key fob using a small flathead screwdriver.
Remove the old battery (usually a CR2032 or similar).
Insert a new battery, ensuring the positive side faces the correct direction.
Reassemble the key fob and test the remote start function.

3. Addressing Diagnostic Codes

Connect an OBD-II scanner to the vehicle's diagnostic port.
Record any trouble codes displayed and refer to the service manual for specific troubleshooting based on the codes.
Clear the codes and attempt to use the remote start again.

4. Inspecting Brake Pedal Switch

Locate the brake pedal switch under the dashboard.
Check the wiring and connections for any damage or disconnection.
Test the switch with a multimeter to ensure it operates correctly when the brake pedal is pressed.
Replace the brake pedal switch if faulty.

5. Checking Hood Latch

Open the hood and inspect the latch mechanism.
Ensure it is functioning properly and making contact when the hood is closed.
Clean any debris from the latch and lubricate if necessary.