Starting your VW Tiguan with the push of a button is meant to be a convenient feature, but when it doesn’t work correctly, it can quickly become a headache.
From your car not detecting the key fob to the engine cranking without starting, these issues can leave you irritated and stuck. Don’t worry, though—most of these problems have simple fixes.
In this guide, we’ll discuss the common push-button start problems in the Tiguan and show you how to get your vehicle back to starting smoothly. Keep reading to find solutions that can save you time and hassle.
1. Push Button Start Not Responding
A common issue among Tiguan owners, especially those with 2018-2021 models, is the push button start not responding when pressed.
In these cases, the dashboard stays dark, and the engine doesn’t crank. This can be incredibly annoying, especially when you’re in a rush.
The most likely culprit is a weak key fob battery. The vehicle needs a strong signal from the key fob, and if the battery is low, the system may not recognize that the key is inside, rendering the push button unresponsive.
Another possible issue is a faulty brake switch. The car requires you to press the brake pedal to start, and if the switch is defective, the system won’t register that you’re pressing the brake.
Electronic interference from mobile phones or nearby devices can also disrupt the signal between the key fob and the car.
To fix this, try replacing the key fob battery and ensure it’s inserted correctly. If the problem persists, check the brake switch and replace it if necessary. Keep electronic devices away from the start button to minimize interference.
2. Key Not Detected
Another frequent issue, particularly in the 2019 and 2020 Tiguan models, is the push button start system failing to detect the key fob, even inside the car. This can prevent the vehicle from starting and leave you stuck.
The issue often occurs because the key fob signal is blocked, especially if the fob is in a bag or pocket with other items like metal keys or additional fobs.
Moving the key fob closer to the start button or center console can sometimes resolve this. A weak fob battery can also lead to inconsistent detection.
In more severe cases, the vehicle’s receiver module, which communicates with the key fob, could be faulty or have a software glitch.
If repositioning the key doesn’t work, try replacing the battery in the fob. If the problem continues, a visit to the dealership may be necessary to inspect or update the receiver module.
3. Engine Cranks but Doesn’t Start
Some Tiguan models from 2017 to 2019 have experienced problems with the engine cranking but failing to start. This issue is particularly alarming because the car remains non-operational despite the engine turning over.
This is often caused by issues in the fuel system, such as a clogged fuel filter or a failing fuel pump, preventing the engine from getting the fuel it needs. The immobilizer system, which prevents theft, might also be to blame.
If the immobilizer doesn’t recognize the key fob, the engine will crank but won’t start. A weak or failing car battery can also contribute to this issue, as the engine might not receive enough power to start despite cranking.
To fix this, have the fuel system inspected for blockages or malfunctions. If the immobilizer is at fault, reprogramming the key fob or updating the system at a dealership may solve the issue. A weak battery should be replaced to ensure the engine gets the needed power.
4. Intermittent Start Failures
2020 and 2021 Tiguan model owners have reported intermittent issues with the push-button start system. Sometimes, the car starts without a hitch, but other times, it refuses to respond, leaving drivers unsure when the issue will strike again.
This inconsistency can arise from electrical wiring issues connected to the push button system. Loose or corroded connections can cause the system to work sporadically.
Electronic interference from nearby devices can also disrupt the signal between the key fob and the vehicle. Software glitches in the vehicle’s control unit might also be to blame for intermittent problems.
To resolve this, have a professional check the wiring and connections. Keeping electronic devices away from the fob can also reduce interference. If the issue persists, a dealership software update may be required.
5. Push Button Fails to Shut Off the Engine
In some 2018 and 2019 Tiguans, owners have reported an issue where the push button start fails to turn off the engine. Even after pressing the button to stop the car, the engine keeps running, which can be inconvenient and concerning.
This is typically caused by a faulty push button start module, which doesn’t send the shutdown signal to the engine control unit. A software glitch may also prevent the button from delivering the shutdown command.
If this issue arises, replacing the push-button start module usually solves it. Sometimes, a software reset or update at the dealership can also fix the problem.
6. Steering Lock Not Engaging or Disengaging
Some 2016-2018 Tiguan owners have reported problems with the steering lock mechanism, which either fails to engage or disengage properly. The push-button start system won’t function when this happens because the steering lock is still active.
The problem often lies with the steering lock module, which may need replacement. A weak vehicle battery can also prevent the steering lock from disengaging, causing the push button start to malfunction.
Replacing the steering lock module or ensuring the battery is fully charged should resolve the issue.
7. Dashboard Warning Lights at Startup
Some Tiguan owners have noticed multiple dashboard warning lights flashing when they press the push button start, accompanied by weak cranking or a failure to start. This suggests a more significant electrical issue.
Faulty wiring, poor connections, or a significant drop in battery voltage are common causes of this problem. These electrical issues can trigger warning lights and prevent the engine from starting correctly.
A professional inspection of the vehicle’s electrical system is necessary to pinpoint the problem. If the battery is weak, replacing it should stop the warning lights and help the car start smoothly.
Conclusion
While the Volkswagen Tiguan’s push-button start feature offers convenience, it can also present a variety of challenges.
Issues like the car failing to detect the key fob or the engine not starting are common, but they often have simple solutions.
Replacing the key fob battery, inspecting electrical components, and seeking software updates are practical steps to resolving these problems and ensuring your Tiguan’s push button start functions as intended.