My car lights stay on.
Hi. You don’t specify which lights are stuck on, so I’m going to assume you’re talking about the headlights. The problem could be the headlight switch, a stuck closed relay, a short in the circuit or a problem with the body control module (BCM). The headlamp system is completely controlled by the BCM via relays that care located in the junction box. The BCM will default to the headlamps on position if it detects a key in the ignition or a short in the headlamp switch input. This system is quite complex, so I suggest you have a professional diagnose your electrical problem. The team at YourMechanic is a great option.
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