February 18, 2026 5 min readBy Tim, Open Sesame Lock & Key
The old coat-hanger trick belongs to cars built forty years ago. Modern door cavities carry side-airbag wiring, window regulators, and lock actuators that cost far more to fix than the lockout would have cost to solve properly.
Do this first
- Try every door and the tailgate — one is unlocked more often than people expect.
- Check your phone. Many manufacturers have an app that can unlock the car remotely if you're enrolled.
- If a child or a pet is locked inside on a warm day, call 911 first. That's an emergency, not a service call.
Why DIY goes wrong
- Coat hangers scratch tint and paint and can snag the wiring loom inside the door skin.
- Aggressive wedging bends the door frame and breaks the weather seal, which shows up later as wind noise and leaks.
- Slim jims can disconnect linkages on cars that still have them, turning a lockout into a repair.
What a mobile locksmith actually does
- We use an inflatable wedge to create a gap measured in millimetres, then a long-reach tool to press the unlock button or lift the lever — no metal against the paint edge.
- If the key is lost rather than locked inside, we can cut and program a replacement at the vehicle instead of towing it to a dealer.
- Either way you get the price range on the phone first.