The DRL system will make your headlamps come on at a reduced brightness when:
- the ignition is on,
the headlamp switch is off,
the parking brake is released and
it is bright enough outside and the automatic headlamps are off.
When the DRL are on, only your headlamps will be on. The taillamps, sidemarker and other lamps won’t be on. Your instrument panel won’t be lit up either. When it begins to get dark, your DRL will turn off. Your headlamps will come on automatically. When it begins to get bright, the regular lamps will go off, and your headlamps will change to the reduced brightness of DRL. To idle your vehicle with the DRL off, set the parking brake. The DRL will stay off until you release the parking brake.
- Check to see all the conditions for turning on the DRL'* are met (ignition on, headlamp switch off, park brake released, bright outside, and automatic headlights are off.
- Check the outside of the vehicle to see if the headlights are lit (when all the above conditions are met). Need to know if the DRL system is malfunctioning or it is just the DRL indicator light burnt out.
If none of the above leads to a solution, let us know and we will think about next steps.
2001 Bonneville SSEi (retired at 365,000 Kms.)
2014 Jeep Grand Cherokee Overland (yes, I know its not a GM)