how to fix the remote start not working on Volkswagen Tiguan

Volkswagen Tiguan Second Generation (2018-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

534 words

Problem Statement

Learn how to diagnose and fix the remote start issue on your Volkswagen Tiguan. 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

•Disconnect the battery before working on electrical systems to prevent shocks or shorts

Symptoms

•Remote start button does not respond when pressed
•Indicator lights on the key fob do not illuminate
•Engine does not crank or start when attempting remote start
•Check engine light may be illuminated on the dashboard
•Vehicle does not lock/unlock with the key fob
•Possible battery drain in the key fob

Diagnostic Steps

1
Check the battery level of the key fob using a multimeter or by replacing it with a known good battery
2
Verify that the vehicle is within the remote start range (typically 200-300 feet)
3
Inspect the vehicle’s security system to ensure it is functioning properly
4
Scan for any error codes in the vehicle's OBD-II system using an OBD-II scanner
5
Check the remote start system fuse for continuity and replace if blown
6
Ensure that all doors, the hood, and the trunk are properly closed, as the remote start may not function if any are ajar

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

•Multimeter
•OBD-II scanner
•Small flathead screwdriver
•Fuse puller

Parts Required

•Key fob battery (CR2032)
•Replacement fuse (if necessary)

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Symptoms

•Remote start button does not respond when pressed

•Indicator lights on the key fob do not illuminate

•Engine does not crank or start when attempting remote start

•Check engine light may be illuminated on the dashboard

•Vehicle does not lock/unlock with the key fob

•Possible battery drain in the key fob

Diagnostic Steps

1
Check the battery level of the key fob using a multimeter or by replacing it with a known good battery
2
Verify that the vehicle is within the remote start range (typically 200-300 feet)
3
Inspect the vehicle’s security system to ensure it is functioning properly
4
Scan for any error codes in the vehicle's OBD-II system using an OBD-II scanner
5
Check the remote start system fuse for continuity and replace if blown
6
Ensure that all doors, the hood, and the trunk are properly closed, as the remote start may not function if any are ajar

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked safely and on a flat surface.
Disconnect the negative terminal of the battery to prevent electrical shorts.

2. Replace Key Fob Battery

Remove the key fob casing using a small flathead screwdriver.
Take out the old battery and replace it with a new one (typically a CR2032).
Reassemble the key fob and test the remote start functionality.

3. Check and Replace Fuses

Locate the fuse box (usually under the dashboard or in the engine compartment).
Identify the fuse related to the remote start system using the fuse diagram.
Pull the fuse out using a fuse puller and check for continuity.
If blown, replace it with a new fuse of the same amperage.

4. Inspect Security System

Open the hood and check the hood latch sensor for proper operation.
Ensure the vehicle's security system is not triggered; reset if necessary according to the owner's manual.
Reconnect the negative battery terminal.

5. Reprogramming Remote Start (if needed)

Follow the vehicle's manual to enter programming mode for the remote start feature.
Use the key fob to reprogram the remote start function if applicable.