1. If a Child or a Pet Is Inside, Call 911 Now
This is not a lockout, it is an emergency, and the correct call is 911 rather than any service number. NHTSA's guidance is unambiguous: if you see a child alone in a locked car, act immediately and call 911, and a child in distress from heat should be removed as quickly as possible and cooled rapidly.
The reason is how fast the arithmetic turns against a small body. NHTSA reports that a child's temperature rises three to five times faster than an adult's, that heatstroke begins when core temperature reaches about 104 degrees, and that death occurs at 107 or above. Thirty-one children died of vehicular heatstroke in 2025.
Two things people assume that are not true:
- Cracking the windows or parking in the shade does little to change the interior temperature of a vehicle.
- A mild day is not a safe day. The interior of a parked car is not the weather outside it.
Call 911 first and let the dispatcher decide what arrives. Nobody has ever regretted that order of operations.
2. The Coat Hanger Is the Expensive Option
Improvising an entry on a modern car usually costs more than the lockout would have. The gap at the top of a door is not empty space: behind the trim sit the window mechanism, wiring looms, the lock linkage and, on many vehicles, side-impact airbag components. A wire pushed blindly into that gap finds them.
The cheaper damage is still real. Torn weatherstripping whistles at freeway speed and leaks in a storm, a bent window channel means the glass never seals properly again, and a scratched door frame is a paint repair. A car lockout service carries wedges and long-reach tools designed for the specific gap on your vehicle, which is the difference between opening a door and rebuilding one.