How to Use the RST Small Hole?
4 Answers
RST hole is a reset button that can restore the navigation system to factory settings. When the system crashes or needs to be reset to factory settings, use an object similar to a toothpick to reach into the small hole and touch the switch. After restarting, the factory settings will be restored. Below are relevant details about the RST hole: 1. Basic Introduction: RST stands for reset, which is the abbreviation of the English word 'reset'. It is usually not a port but just a small hole with a tiny switch inside; 2. Working Principle: The RST button is mostly located on the front panel of the navigation device, appearing as a small hole. When the device is powered on, gently poke it with a toothpick until you hear a click, then restart the navigation system to restore factory settings. This method is generally used to solve navigation issues except for hardware damage.
I've checked many owner's manuals, and the RST small hole refers to the reset hole, mainly used to reset vehicle system data. I remember last time after maintenance when the dashboard maintenance reminder light came on, the 4S shop technician used a paperclip to poke that small hole, held it for about 10 seconds, and the light went off. This hole is designed to be very concealed, often hidden in the audio area of the center console or under the steering wheel, with locations varying significantly across different models. The key point is that the vehicle needs to be powered on but the engine shouldn't be started. Before poking with a toothpick or pin, remember to check if the steering wheel is in the straight position. If there's no response after pressing, there might be other fault codes stuck in the system. It's best to drive a short distance after each reset to see if the warning light comes back on. This method also works well for resetting tire pressure alarms.
This small RST hole can actually be found near the steering wheel, and I've operated it multiple times. First, check if there's a pinhole-sized hole on the side of the dashboard, then turn the vehicle to the power-on position without starting it. Find a tool about the thickness of a ballpoint pen refill and gently insert it, pressing all the way down. The dashboard might flicker at this point. Maintain the pressure for about 5 seconds before releasing. The most crucial aspect is the timing of the operation—it must be done when the warning light is steadily lit; poking it while the light is flashing won't work. For Japanese cars, you need to wait 15 seconds after poking for the system to self-check, while German cars will emit a beep as a signal. Last time, I fixed a false seatbelt alarm in my car this way, which was much more convenient than going to a repair shop.
The exact location varies by model. I've studied many car series. Volkswagen typically places it at the tip of the wiper stalk, Toyota likes to hide it in the gap at the lower right corner of the dashboard, while Hyundai usually locates it under the steering wheel. Two key points to note during operation: first, the vehicle should be powered on but not started; second, ensure the key is in the ON position for more than 5 seconds before pressing. It's best to disconnect the battery negative terminal for half a minute before pressing, allowing the system to fully reboot. Some older models require stepping on the brake pedal simultaneously to be effective, while newer models may work by turning the steering wheel while holding the reset button.
