1. Try the Obvious (But Important First Steps):
* Shift to Park (Automatic) or Neutral (Manual): This seems basic, but it's the most common reason a key gets stuck. Make absolutely sure the vehicle is in Park (or Neutral) and the emergency brake is engaged. Gently jiggle the key while trying to turn it.
* Wiggle and jiggle: Gently wiggle and jiggle the key while trying to turn it. Sometimes a slight movement can free it up.
* Try a Different Key: If you have a spare key, try it. There might be a slight difference between keys that could cause one to stick.
* Lubrication: A very small amount of graphite lubricant (like powdered graphite in a tube, *not* WD-40) *might* help. Apply it sparingly to the key and the ignition. Too much lubricant can gum things up.
2. If the Above Fails, More Involved Methods:
* Steering Wheel Lock: The steering wheel might be slightly locked, preventing the key from turning. Try gently moving the steering wheel back and forth while jiggling the key.
3. Professional Help:
If none of the above works, you should call a professional:
* Locksmith: This is your best option. Locksmiths have specialized tools and expertise to remove broken or stuck keys without damaging your ignition cylinder. They can often extract the key without replacing the entire ignition.
* Towing Service: A towing service might be able to help, but they're usually more expensive than a locksmith specializing in automotive locks. They might recommend a locksmith anyway.
* Dealership: A GMC dealership can certainly help, but it will likely be the most expensive option.
Important Considerations:
* Avoid forceful methods: Jamming, hitting, or using excessive force on the key or ignition can cause significant damage, leading to costly repairs.
* Don't try to break the key: This will likely make the situation worse and more expensive to fix.
In short: Start with the simple steps. If those fail, a locksmith is your best bet to get the key out safely and cost-effectively. Avoid anything that involves excessive force.
