why does my Volkswagen Tiguan Second Generation (2018-present) remote start not working

Volkswagen Tiguan 2nd Gen (2018-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

600 words

Problem Statement

Learn how to diagnose and fix remote start issues in Volkswagen Tiguan (2018-present). Step-by-step guide with symptoms, diagnostic steps, and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in a secure location and not running while performing diagnostics or repairs.

Symptoms

•Remote start button does not activate the engine
•No response from the vehicle when attempting to start remotely
•Security light may blink or remain illuminated
•Engine does not crank or start when the remote start is attempted
•Key fob battery may be low or dead

Diagnostic Steps

1
Check the battery level of the key fob to ensure it is not low or dead.
2
Verify if the vehicle is in an environment that allows remote start (e.g., doors closed, hood closed).
3
Scan the vehicle's OBD-II system for any trouble codes that could indicate an issue with the remote start system.
4
Inspect the vehicle's fuse box for any blown fuses related to the remote start system.
5
Ensure that the vehicle's security system is not preventing remote start activation.
6
Check the remote start settings in the vehicle's infotainment system to ensure it 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 screwdriver
•Fuse puller or pliers

Parts Required

•CR2032 key fob battery
•Replacement fuses (if needed)

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Diagnostic Steps

1
Check the battery level of the key fob to ensure it is not low or dead.
2
Verify if the vehicle is in an environment that allows remote start (e.g., doors closed, hood closed).
3
Scan the vehicle's OBD-II system for any trouble codes that could indicate an issue with the remote start system.
4
Inspect the vehicle's fuse box for any blown fuses related to the remote start system.
5
Ensure that the vehicle's security system is not preventing remote start activation.
6
Check the remote start settings in the vehicle's infotainment system to ensure it is enabled.

Solution

1. Preparation

Gather tools such as a multimeter, OBD-II scanner, and a replacement battery for the key fob.
Ensure the vehicle is parked in a safe area with adequate space.

2. Check Key Fob Battery

Step 1: Use a small screwdriver to gently pry open the key fob casing.
Step 2: Remove the old battery and insert a new CR2032 battery, ensuring correct polarity.
Step 3: Reassemble the key fob and test the remote start function.

3. Inspect Fuses

Step 1: Locate the fuse box (usually under the dashboard or in the engine compartment).
Step 2: Refer to the owner’s manual to identify the fuse related to the remote start system.
Step 3: Use a fuse puller or pliers to remove the fuse and check if it is blown.
Step 4: Replace with a new fuse of the same amperage if necessary.

4. OBD-II Code Scanning

Step 1: Connect the OBD-II scanner to the vehicle's diagnostic port.
Step 2: Turn the ignition to the "On" position without starting the engine.
Step 3: Scan for trouble codes and note any relevant codes related to the remote start system.
Step 4: Clear any codes and see if the remote start function begins to operate.

5. Verify Security System

Step 1: Check if any doors or the hood are not closed properly which may trigger the security system.
Step 2: If the security light is illuminated, troubleshoot the vehicle's immobilizer system.
Step 3: Attempt to reset the security system by locking and unlocking the vehicle with the key fob.