That tip is usually referring to long-pressing the key fob (remote) to trigger extra convenience functions in many modern cars.
When you hold the button for about 5 seconds, depending on the car brand and model, it can do things like:
- Roll down all windows remotely (useful for ventilating a hot car)
- Roll up all windows (on some vehicles, when locking)
- Open or close sunroof (in certain models)
- Activate “comfort opening/closing” mode
- Extend the range of the signal slightly in some systems by repeating the command
Why manufacturers include this feature
It’s mainly for comfort and safety:
- Lets trapped hot air escape before you enter the car
- Helps you check that windows are fully closed without getting inside
- Adds convenience when loading/unloading in bad weather
Important notes
- Not all cars support this—it’s most common in brands like Volkswagen, BMW, Mercedes, Toyota, and Hyundai (varies by model year).
- Sometimes it needs to be enabled in the car’s settings menu or dealer software.
- It only works when you’re within normal key fob range.
If you want, tell me your car model and I can tell you exactly what that long-press does on your vehicle.
