1. Steering Wheel Lock Engaged: The steering wheel lock may be engaged, preventing the key from turning. Try jiggling the steering wheel gently while turning the key.
2. Worn Key or Ignition Cylinder: Check if the key is worn or damaged. Examine the ignition cylinder for signs of wear or damage as well. If the key or ignition cylinder is worn out, it may need to be replaced.
3. Dirty or Obstructed Ignition Cylinder: Dirt, debris, or other obstructions may prevent the key from turning smoothly in the ignition cylinder. Use compressed air or a soft cloth to clean the cylinder and remove any obstacles.
4. Faulty Ignition Switch: The ignition switch may be faulty or malfunctioning, causing the key to be stuck. Diagnose the ignition switch to determine if it requires repair or replacement.
5. Broken or Dislodged Shift Interlock: The shift interlock mechanism ensures the car is in "Park" before the key can be turned. If the interlock is damaged or dislodged, it can prevent the key from turning.
6. Damaged Housing: Inspect the housing around the ignition for any damage or deformation. If the housing is damaged, it might hinder the key's movement.
7. Mechanical Malfunction: There may be an underlying mechanical issue within the steering column or ignition system. This could require a professional inspection by a mechanic or locksmith.
8. Transponder Key Issue: If your Grand Am GT has a transponder key, it might not be communicating properly with the immobilizer system. Try using a spare key or consult a dealership or automotive locksmith to diagnose the issue.
Note: If the key still won't turn after attempting these solutions, seek assistance from a trained automotive professional to ensure proper diagnosis and repair.
