What is the reason for the car not starting in P gear?

2 Answers
LucilleAnn
07/24/25 8:25am
This situation is caused by a faulty gear switch or a broken related circuit. Here is the relevant introduction: 1. Automatic transmission: As the name suggests, an automatic transmission does not require the driver to manually shift gears. The vehicle will automatically select the appropriate gear based on the driving speed and traffic conditions. Generally, there are six gear positions in an automatic transmission car, from top to bottom: P, R, N, D, S, L. 2. Gear introduction: P——Parking gear. When the car is parked and not in use, the gear is in this position, and the wheels are mechanically locked to prevent rolling. N gear, neutral gear. This gear is used for temporary parking (such as at a red light). Note that this gear indicates neutral, and to prevent the car from rolling on a slope, the brake must be pressed.
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AutumnLee
08/11/25 4:01am
After driving for so many years, I've seen quite a few people encounter situations where the car won't start despite being in P mode, which can be quite unsettling. The most common cause is likely a faulty gear position sensor, which is responsible for telling the car that you're indeed in park mode. Poor contact or wear can prevent the system from receiving the signal. Another frequent issue is insufficient battery power, especially in winter or after prolonged periods of inactivity. Problems with the ignition switch or a faulty relay disrupting the current flow are also possible culprits. The last time I faced a similar situation, I checked the voltage myself and confirmed it was a battery issue—replacing it solved the problem. For safety, if this happens to you, avoid forcing the ignition. First, do a quick check for loose battery terminals. If that's not the issue, head straight to a repair shop to prevent more serious damage or accidents.
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