* Steering Wheel Lock Mechanism: This is the most likely culprit. The key may be partially inserted or not fully aligned, preventing the locking mechanism from disengaging. Try gently jiggling the steering wheel while turning the key. Sometimes a little back-and-forth movement can free it up.
* Shift Lever Not in Park (Automatic Transmission): Make absolutely certain your automatic transmission is fully in Park (P). Even a slight misalignment can prevent the key from turning.
* Faulty Ignition Switch: This is a more serious issue. The ignition switch itself might be worn, damaged, or failing. This requires professional repair or replacement.
* Broken or Damaged Key: While less likely if the key *appears* to fit, a worn or damaged key can prevent proper insertion or turning. Try a known good key if possible.
* Steering Column Issues: In rare cases, there could be a problem within the steering column itself that's interfering with the lock mechanism. This is less common but possible.
* Low Battery: While seemingly unrelated, a very low battery can sometimes affect the power assist to the steering column lock and prevent the key from turning. Try jumping the battery (if you're comfortable doing so and have jumper cables) as a quick test.
Regarding the "99 SE on dash" for your '99 (not '01) Grand Am: The "SE" likely indicates the trim level (Special Edition). This is normal and has no bearing on the ignition problem with your 2001 GT model. It's just information about the car's specification.
What to Do:
1. Try jiggling the steering wheel while turning the key: This is the first and easiest thing to try. Gentle movements are key to avoid causing further damage.
2. Check the shift lever: Double and triple check that the transmission is firmly in Park.
3. Try a spare key: If you have a spare key, try using it. This will help determine if the issue is with the key or the ignition system.
4. If all else fails, call a locksmith or tow truck: A qualified locksmith is experienced in dealing with these types of problems and may be able to diagnose and fix the issue on-site. If that's not possible, you'll need a tow truck to transport your car to a repair shop.
Avoid forcefully turning the key: This could damage the ignition switch or other components. Gentle and persistent efforts are more effective and safer.
