Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
The daytime running lamps (DRL) will come ON when:
When the exterior lights are ON, the DRL will turn OFF. To turn the DRL OFF when idling, apply the parking brake.
With everything plugged in ,apply the brake with the key on/engine off.The brake light in the dash should light & the headlamps should turn off.If not replace the DRL module.