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What Problems Can Occur If You Forget to Shift to P Gear When Turning Off an Automatic Transmission Car?

1 Answers

McHeidi

07/29/25 4:20pm

Forgetting to shift to P gear when turning off an automatic transmission car can cause significant long-term damage to both the transmission and the P gear. Automatic transmissions utilize planetary gear mechanisms to shift gears automatically based on the degree of throttle pedal pressure and changes in vehicle speed. Therefore, if you forget to shift to P gear and release the brake, the car may sometimes shake, potentially leading to accidents or injuries. Below are the issues that can arise from turning off an automatic transmission car without shifting to P gear: 1. If you release the brake without shifting to P gear, the car may still move forward or backward. Even on flat ground, when reversing into a parking space, if the rear wheels are firmly pressed against the positioning copper pipe, only engaging the handbrake and turning off the engine will cause the gears to be under pressure. Starting the car and shifting gears afterward will be difficult, and in severe cases, a clunking sound may occur as the parking pawl presses against the gear, damaging the transmission. 2. When parking, both the handbrake and P gear work together to prevent the car from rolling. Engaging the handbrake before shifting to P gear allows the handbrake to bear most of the impact force, reducing damage to the transmission, especially the P gear. When an automatic transmission is shifted into P gear, the parking gear and parking pawl engage. However, if you release the brake without shifting to P gear, the car may shake, potentially causing accidents or injuries.

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