how to 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

558 words

Problem Statement

Learn how to diagnose and fix remote start issues in a 2018-present Volkswagen Tiguan. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before starting electrical repairs to avoid short circuits.

Symptoms

•Remote start button unresponsive on the key fob
•Check engine light illuminated
•Vehicle does not start when remote start is attempted
•Security system warning light activated
•Engine turns over but does not start

Diagnostic Steps

1
Check the key fob battery to ensure it has sufficient charge.
2
Scan for error codes using an OBD-II scanner to identify any related issues.
3
Verify the vehicle’s battery voltage; low voltage can affect remote start functionality.
4
Inspect the vehicle's security system to ensure it is not preventing the remote start.
5
Check for any blown fuses related to the remote start system.
6
Ensure that all doors and the hood are closed, as the remote start may not engage if these are open.

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
•Small flathead screwdriver
•Fuse puller or pliers

Parts Required

•Key fob battery (CR2032 or equivalent)
•Replacement fuse (if applicable)

Related Faults

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Diagnostic Steps

1
Check the key fob battery to ensure it has sufficient charge.
2
Scan for error codes using an OBD-II scanner to identify any related issues.
3
Verify the vehicle’s battery voltage; low voltage can affect remote start functionality.
4
Inspect the vehicle's security system to ensure it is not preventing the remote start.
5
Check for any blown fuses related to the remote start system.
6
Ensure that all doors and the hood are closed, as the remote start may not engage if these are open.

Solution

1. Preparation

Gather the necessary tools and parts.
Ensure the vehicle is parked in a well-ventilated area.
Disconnect the vehicle battery to ensure safety during electrical work.

2. Replace Key Fob Battery

Remove the key fob casing using a small flathead screwdriver.
Replace the old battery (usually a CR2032 or similar) with a new one.
Reassemble the key fob and test the remote start functionality.

3. Inspect and Replace Fuses

Locate the vehicle's fuse box (usually under the dash or in the engine compartment).
Refer to the owner's manual to identify the fuse for the remote start system.
Remove the fuse using a fuse puller or pliers and inspect it for damage.
Replace with a new fuse of the same amperage if blown.
Reconnect the battery and test the remote start function.

4. Reset Security System

Reconnect the vehicle battery.
Use the key fob to lock and unlock the doors to reset the security system.
Attempt to use the remote start feature again.

5. Reprogram Key Fob (if necessary)

If the fob is still unresponsive, reprogram it using the following steps:
- Insert the key into the ignition and turn to the "On" position (do not start the engine).
- Press the "Unlock" button on the key fob and hold for approximately 10 seconds.
- Turn the ignition off and remove the key to complete the programming.
Test the remote start function again.