Should an automatic transmission car be started in N gear or P gear?
1 Answers
An automatic transmission car can be started in either N gear or P gear. However, many modern vehicles cannot be started unless the gear is in P. When shifted into P gear, a pawl inside the transmission locks the output shaft to prevent the vehicle from moving. Shifting into N gear does not engage this mechanism, so the vehicle can still move under external force. As long as the gear is not left in R, the transmission will not perform a gear shift. Modern automatic transmissions are not directly driven by the gear lever but are controlled by the transmission control system. After receiving the gear position signal, the transmission control system calculates and then makes the gear shift decision.