What does the RST hole mean?
4 Answers
RST hole is a reset button that can restore the navigation system to factory settings. The RST button is mostly located on the front panel of the navigation device. When the power is on, use a toothpick to poke the hole. Upon hearing any movement, restart the navigation, and the factory settings can be restored. This method is usually used to solve navigation problems except for hardware damage. Car navigation has the function of the GPS global satellite positioning system. As long as the driver inputs the destination into the car navigation system, the system will automatically calculate the most suitable route according to the electronic map and remind the driver to follow the calculated route during the driving process (such as before turning).
Many friends ask about this when I'm driving - it's actually the neutral position on the automatic transmission gear lever. The RST hole is commonly known as the N gear. When you shift into this position, the engine and wheel transmission temporarily disconnect, so the car won't move forward or backward. This state is particularly suitable for short stops at red lights or when towing is needed. Once my friend accidentally shifted into N gear on a slope, and the car immediately rolled downhill, almost hitting the guardrail - so remember to engage the parking brake, otherwise the transmission gears will make terrible grinding noises, and repairs won't come cheap. Never suddenly shift into N gear while driving - the impact on the transmission is like hitting precision parts with a hammer, causing significant damage.
When explaining car gears to beginners, I always liken the transmission to a relay race. The N in the PRNDL slot is like the pause point during baton exchange: the engine is running, but power isn't transmitted to the wheels. This neutral position is most commonly used when waiting at traffic lights or during temporary stops, avoiding prolonged braking in D gear which wears out brake pads. However, I've noticed that some older cars may develop unstable idling when left in N gear for too long, possibly due to carbon buildup affecting the RPM sensor. Regular throttle body cleaning can help alleviate this issue.
The RST hole on an automatic transmission indicates the neutral position. Engaging this position when the vehicle is stationary releases transmission pressure and reduces the rise in transmission fluid temperature—this is particularly important for frequent stop-and-go city driving. During one maintenance check, I found that vehicles left in Drive (D) with the brakes applied at red lights had torque converter temperatures nearly 20 degrees higher than those shifted to Neutral (N), highlighting the maintenance benefits of proper N gear usage. However, remember to shift back to D before the light turns green to avoid getting honked at by drivers behind you.
