
The fastest and safest way to open a locked car is to call a professional locksmith or your roadside assistance service (like AAA). If you have a spare key, that's your best bet. For a DIY approach, using a professional Slim Jim tool or an inflatable wedge and long-reach tool are common methods, but they carry a high risk of damaging your car's door seals, window mechanisms, or locking components if done incorrectly.
Before attempting anything, check all doors and the trunk. Sometimes one is unintentionally unlocked. Modern keyless entry systems might also allow access via a companion smartphone app if your car is equipped with that technology.
Professional Assistance vs. DIY: A Cost and Risk Comparison
| Method | Average Cost | Average Wait Time | Risk of Damage | Best For |
|---|---|---|---|---|
| Roadside Assistance (AAA) | $0 (with membership) | 30-45 minutes | Very Low | Anyone with a membership |
| Professional Locksmith | $50 - $150 | 20-60 minutes | Low | All situations, especially modern cars |
| DIY Tools (Slim Jim) | $10 - $30 (tool cost) | Immediate | High | Experienced users only on older models |
| Coat Hanger/String Method | $0 | 10-30 minutes | Moderate to High | Older cars with vertical lock pins |
If you must try a DIY method on an older car, the "string method" for unlocking a vertical pin lock is less likely to cause scratches than a coat hanger. You slip a loop of string into the door jam, maneuver it around the lock pin, and pull upward. However, this requires patience and a specific type of lock.
Always prioritize safety. If you're in an unsafe location or have a child or pet locked inside, call 911 immediately. For other situations, the small fee for a professional is almost always cheaper than repairing a damaged door.

Been there! First, don't panic. Check every single door, even the trunk. You'd be surprised. No luck? Call roadside assistance if you have it—that's what you pay them for. If you're on your own, a quick call to a local locksmith is your safest move. Trying to force it with a coat hanger usually ends with a big scratch on your door and a still-locked car. It's not worth the DIY damage.


