my Ford Mustang S550 (2015-2023) won't go into reverse what do I check

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a level surface and the parking brake is engaged.
• Disconnect the battery to prevent electrical shorts.

2. Check Transmission Fluid

• Remove the transmission dipstick and wipe it clean.
• Reinsert the dipstick and check the fluid level; top up with the appropriate Ford-approved transmission fluid if low.
• Inspect the fluid condition; if it appears burnt or contaminated, a fluid change is needed.

3. Inspect Gear Selector Linkage

• Locate the gear selector linkage on the transmission.
• Visually inspect for any loose or damaged components.
• Adjust or replace the linkage if necessary, ensuring proper alignment.

4. Brake Light Switch Check

• Locate the brake light switch near the brake pedal.
• Disconnect the connector and check for continuity with a multimeter.
• Replace the brake light switch if it is faulty.

5. Electrical System Check

• Reconnect the battery and check the voltage using a multimeter; it should read between 12.4V to 12.8V.
• Inspect battery connections for corrosion or looseness.

6. Test Drive

• After completing repairs, take the vehicle for a test drive.
• Shift through all gears, including reverse, to ensure proper operation.