Few things are more frustrating than a feature not working when you need it most, especially one as convenient as remote start on your Volkswagen. If your VW remote start not working is causing you headaches, there are numerous potential issues to investigate before heading to a mechanic or dealership. This guide will help you understand what might be going wrong and offer steps to troubleshoot and fix the problem.
Understanding How VW Remote Start Works
The remote start function allows you to start your car’s engine from outside the vehicle using your key fob or a mobile app. It’s particularly useful for warming up the car on cold mornings or cooling it down on hot days. However, for this feature to work seamlessly, several components, software systems, and conditions must all align. When something disrupts that harmony, you may find your VW remote start not working as expected.
What You Need for Remote Start to Function
- A fully functioning key fob with adequate battery power
- Your VW’s engine and electrical system in good condition
- An active VW Car-Net subscription if using an app
- Proper settings configured in your vehicle
Next, we’ll explore the reasons why this feature might fail and how to address each potential issue.
Top Reasons Why Your VW Remote Start May Not Be Working
1. Dead or Weak Key Fob Battery
A depleted battery in your key fob is one of the most frequent reasons behind a VW remote start not working. Remote start requires a strong and uninterrupted signal from the fob. If the battery is weak or dead, the necessary communication between your key fob and the vehicle won’t occur.
How to Fix It
- Replace the key fob battery. Most VW key fobs use a CR2032 or CR2025 battery, which you can find at your local store or online.
- If the new battery doesn’t resolve the issue, consider syncing or reprogramming the fob to your car.
2. Hood or Door Not Properly Closed
For safety reasons, your Volkswagen’s remote start function won’t activate if the vehicle detects an open hood, door, or trunk. Even a slightly ajar door can trigger this fail-safe mechanism.
How to Fix It
- Ensure all doors, including the trunk, are fully closed and securely latched.
- Double-check the hood. Sometimes the hood may appear closed, but the latch might not be fully engaged.
3. Vehicle in “Valet Mode”
Many modern Volkswagen models include a “Valet Mode,” which disables certain features like remote start for security purposes. If your car is accidentally placed in Valet Mode, it may explain why the VW remote start not working issue is occurring.
How to Fix It
- Check your vehicle’s settings using the infotainment system or your owner’s manual to disable Valet Mode.
- Look for a physical switch or button labeled with a valet lock symbol, particularly in older VW models.
4. Low Engine Oil or Coolant Levels
The remote start system relies on several sensors to ensure the car is safe to start remotely. If your oil or coolant levels are too low, the system may prevent the vehicle from starting to avoid engine damage or overheating.
How to Fix It
- Check your oil and coolant levels and top them up if necessary.
- If you’re unsure how to check these levels, consult your owner’s manual or seek the help of a professional mechanic.
5. Check Engine Light Is On
Your car’s remote start feature automatically disables if the check engine light is on. This safety measure ensures that the vehicle isn’t started remotely when there’s a problem that needs attention.
How to Fix It
- Use a diagnostic tool to determine why the check engine light is on. Many auto parts stores offer free diagnostic scans.
- Repair the underlying issue causing the warning light before attempting to use the remote start feature again.
6. Software Bugs or Glitches
Like all modern vehicles, Volkswagens rely heavily on software for many key features, including remote start. A software glitch or an outdated control module can prevent your remote start from functioning properly.
How to Fix It
- Check for software updates on your vehicle’s infotainment system.
- If the problem persists, have a certified VW technician reset or update the control modules.
7. Signal Interference
If you’re trying to use remote start in a location with a lot of signal interference, such as near power lines or in a dense urban area, the key fob’s signal may not reach the vehicle effectively.
How to Fix It
- Move closer to the vehicle and try again.
- Avoid locations where signal interference is common whenever possible.
When to Consult a Professional
If you’ve tried all the troubleshooting steps above and your VW remote start not working issue still persists, it may be time to consult a professional. Some problems, such as wiring issues or malfunctioning sensors, require specialized tools and expertise to diagnose and repair.
What to Expect at a Dealership or Mechanic
At the dealership or repair shop, a technician will likely perform a series of tests, including:
- Running a full diagnostic scan to identify fault codes
- Checking the key fob signal strength and programming
- Inspecting the car’s sensors, electrical systems, and control modules
Repair costs will depend on the underlying issue. While some fixes, like key fob reprogramming, are relatively inexpensive, more complex repairs could cost hundreds of dollars.
Preventing Future Remote Start Issues
To avoid running into the VW remote start not working problem again, here are some maintenance tips:
- Replace your key fob battery regularly—typically once a year or as needed.
- Keep your vehicle in top condition by scheduling routine maintenance, including oil changes and coolant checks.
- Ensure your Volkswagen’s software is always up to date.
- Keep the hood, doors, and trunk securely closed whenever you use the remote start function.
Final Thoughts
Dealing with a VW remote start not working can be frustrating, but the good news is that many issues are easy to diagnose and fix yourself. By following the troubleshooting steps outlined above, you can often get your remote start working again without a trip to the dealership. If all else fails, don’t hesitate to seek professional help to ensure your vehicle remains in optimal condition. Keeping up with routine maintenance and staying vigilant about system updates can also go a long way in preventing future problems with your remote start. Good luck!
