Service Vehicle Soon

I took my car to the shop multiple times for this light but nothing was ever found. Always blamed it on my autostart alarm. But its been almost a year now and I believe it only comes on when the interior dash night lights come on. If im under a underpass it comes on always goes off. Any suggestions on what could cause this before I take it to the shop?

[BlackJack]

weird....maybe a short in the circuit board between the leads to the dash lights and the SES light? Haven't seen them, but I can't help but wonder.

[Redog]

Yeah that's odd, never heard anyting like that.

Run a scan on it when the lights are on

Ok, when I take it to the shop I will update.

[Silentalero]

check the biright headlight bulbs, one of em might be burnt out and its throwing a code