If you’re driving a car that uses a physical key and it seems to be stuck in the ignition, the first thing to do is make sure your car’s in park—it won’t come out if you’re still in ...

Certain circuits will require that you activate something to illuminate the test light, such as turning the headlamp switch on to energize that particular fuse. Some key fuses on the C4 PKE system ...

2. Pilots should verify the integrity of the ignition switch-to-key connection to ensure the key can only be removed when the ignition switch is in the OFF position.

If the test light is dim, the fault may lie in a battery cable connection, the ignition switch, neutral safety switch, or related connectors.

Records show that GM knew about faulty ignition switches in its cars at least a decade ago. The first death now linked to the problem happened the same year the company was shedding thousands of jobs.