Issue with 2015 Mustang GT DRL Behavior (Right Side)

[vSimo]

Hey everyone, I’ve got a 2015 Mustang GT and I’ve been noticing something weird with my daytime running lights (DRLs). When I turn off the car and lock it, the left side DRL turns off immediately, but the right side DRL stays on for a bit before shutting off. It’s consistent — happens every time.

There are no warning lights or error messages, and both headlights work fine otherwise. No aftermarket lights — everything is stock.

Has anyone experienced this or know what could be causing it? Could it be a BCM issue, wiring problem, or something in the headlight assembly itself?

Thanks in advance.

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