* Mechanical failure: The pawl itself could be broken or jammed, the linkage connecting it to the shifter could be bent or broken, or internal transmission components might be malfunctioning.
* Low transmission fluid: Insufficient fluid can hinder the smooth operation of the mechanism.
* Shift cable issues: The cables that connect the shifter to the transmission can become stretched, broken, or otherwise malfunctioning.
* Binding or frozen components: Rust, debris, or cold temperatures can freeze or bind moving parts within the transmission or shifter mechanism.
* Electrical fault (in automatic transmissions): Problems with the shift solenoid, other electrical components, or the car's computer system can prevent the release of the parking pawl.
* Incorrect shifting procedure (rarely the sole cause): For example, not applying the brake properly or not fully releasing the brake before shifting out of park in some vehicles can make the shift feel difficult. This is usually not why the car is *stuck* though, but rather difficult to shift.
In short, it's usually a mechanical or electrical problem preventing the release of the parking pawl.
