Ford Aerostar unable to shift out of park while engine is running on Ford Aerostar

Some Ford Aerostar owners report experiencing difficulty shifting out of park while the engine is running, which may be due to several potential issues. One common cause is a faulty brake light switch or related wiring problems, which can prevent the brake lights from illuminating and inhibit the ability to shift out of park. Additionally, some owners may encounter issues with the automatic transmission shift lock control system, a safety feature that requires pressing the brake pedal before moving the shift lever. In certain situations, such as a discharged battery, the manual shift lock release may be necessary to move the shifter out of park. It is also recommended for owners to check the adjustment of the shift indicator pointer to ensure proper engagement in the Park position. Addressing these concerns promptly is essential for resolving shifting difficulties effectively.