Will an Automatic Car Roll Without the Handbrake?

1 Answers
SanLincoln
07/29/25 10:34pm
An automatic car will roll without the handbrake. Here is the relevant information: Engaging P gear: An automatic car will not roll after being turned off and shifted into P gear, provided the vehicle is parked on level ground. This is because the P gear in an automatic transmission is a locking gear. P gear is a special neutral position that mechanically locks part of the transmission output shaft to secure the vehicle, functioning as a parking brake to prevent movement. On slopes: If the slope is steep, the force generated by the vehicle's own weight may exceed the locking force, causing the car to roll. Therefore, it is recommended to engage the handbrake in addition to shifting into P gear for automatic cars.
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