1. Low Battery: A weak or dead battery can prevent the key from turning or the steering wheel from unlocking. Verify the battery condition by testing the voltage or starting the vehicle with a jump start.
2. Faulty Ignition Switch: A faulty ignition switch may prevent the key from turning properly. Try using a spare key to see if it resolves the issue. If both keys face difficulties, the ignition switch might be faulty and require replacement.
3. Locked Steering Column: The steering column may be mechanically locked if the vehicle was left in a turned position before removing the key. Verify if the steering wheel is turned slightly left or right while attempting to turn the key.
4. Faulty Key or Lock Cylinder: Over time, the key can become worn or damaged, preventing smooth insertion into the lock cylinder. Ensure the key is free from bends or damage. Conversely, the lock cylinder might have issues that impede key insertion.
5. Anti-Theft System Activation: Some Mustangs have anti-theft systems that engage if the key is removed while the engine is still running. This can disable the key and steering wheel from functioning properly. Wait a few minutes and try again.
6. Electrical Issue: Electrical issues, such as a faulty wiring connection or a problem with the vehicle's computer system, can affect the key and steering wheel functionality.
If simple troubleshooting steps like trying a spare key or jump-starting the vehicle don't resolve the problem, it's recommended to take the Mustang to a qualified mechanic or an authorized Ford dealer for proper diagnostics and repairs.
