Should I put the automatic transmission in P or N when waiting at a red light?

1 Answers
OEva
07/30/25 8:12am
When waiting at a red light in an automatic transmission car, you can shift into N gear, or stay in D gear while stepping on the brake, but you must not shift into P gear. Using P gear when waiting at a red light in an automatic transmission car is not recommended. Although both P gear and N gear can basically be used when parking, P gear and N gear are not the same, and their usage scenarios are also different. More details are as follows: 1. After shifting into P gear: There is a locking mechanism inside the automatic transmission to lock the gears, which is equivalent to indirectly locking the wheels. Even without pulling the handbrake, the car cannot move after shifting into P gear. 2. After shifting into N gear: There is no locking mechanism inside the automatic transmission to lock the transmission gears, so the car can move if the handbrake is not pulled. 3. P gear: Used when parking and turning off the engine. 4. N gear: Used when stopping for a short time without turning off the engine.
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