* Steering Wheel Lock: This is the most likely culprit. The steering wheel may be slightly turned, engaging the lock. Try gently jiggling the steering wheel while trying to turn the key.
* Shift Lever Not in Park (Automatic Transmission): Make absolutely sure the gear selector is firmly in Park (P). A slight misalignment can prevent the ignition from turning.
* Faulty Ignition Switch: This is a common failure point in older cars. The switch itself might be worn out, broken internally, or jammed. This requires replacement.
* Broken or Damaged Key: The key itself might be worn, bent, or damaged in a way that prevents it from engaging properly with the ignition cylinder. Try a spare key if you have one.
* Low Battery: A weak battery can sometimes prevent the ignition from turning. Try jump-starting the car.
* Security System Issues: If the car has a factory or aftermarket anti-theft system, a malfunction could be preventing the ignition from turning. Check the system's indicators for any error messages.
* Steering Column Issues: Rarely, there could be a problem with the steering column itself, such as a broken component interfering with the ignition mechanism.
* Electrical Problem: A short circuit or other electrical fault in the ignition system could be the cause.
Troubleshooting Steps:
1. Check the Steering Wheel and Gear Selector: Start with the easiest checks – ensure the steering wheel is straight and the gear selector is firmly in Park.
2. Try a Spare Key: If you have one, try using a spare key to rule out a problem with the key itself.
3. Jump Start the Car: If you suspect a low battery, try jump-starting the vehicle.
4. Check for Anti-Theft System Indicators: Look for any lights flashing or unusual behavior from the anti-theft system.
5. Professional Inspection: If none of the above solves the problem, it's time to take the car to a qualified mechanic or locksmith. They have specialized tools and expertise to diagnose and repair ignition problems. They can also determine if the ignition switch needs replacing or if a deeper mechanical or electrical issue exists.
Don't force the key, as this could damage the ignition cylinder further. Be patient and methodical in your troubleshooting. Safety is paramount; if you're unsure about anything, call a professional.
