It could be a number of things. First check all of the fuses. It could be the module which controls the lights but it needs to be checked out.
There is also a relay for the daytime running lights on your car i would check into that if all fuses are good.
The lights that come on when you put your vehicle in gear are the daytime running lights. There should be no reason for you to turn these off as this is an extra safety feature.
I am presently having the same problem on my '97 sunfire. According to the wiring diagram, the daytime running lights are actually just the highbeams running in series. For whatever reason, I don't have a driver side high beam either. I assumed it was the relay, but I might be mistaken. Where is the darn relay located anyway? the relay is in the fuse box inside the car on the drivers side door panel
Check bulbs--Low been element could be burned out Check fuse for daytime running light module, make sure your park brake is not part way on. Or module may be bad. High beam's are not controled by module, that is the reason thy still weork.
Just replaced the headlight bulbs in a 98 Grand Cherokee that had the same problem. It had the wrong bulbs in it. It had 9007's in it. Calls for 9004's.
To the best of my knowledge all Highlanders are equipped with Daytime Running Lights (DRLs). In Canada they are required by law to be equipped with them HOWEVER - there is no indication what country you are writing from or what level of "trim" your Highlander is, and your particular model may not be, for one reason or another. Check your Owner's Manual if you still have it, or simply call your local Toyota dealer.
To make the engine more visible to people at rail crossings. Same reason that a motorcyclist has his light on in the daytime.
All on one circuit - check the fuse for parking/tail lights
The Blazer has a two possible systems One: DRL Daytime running lights Lights that stay on during the day at a lower voltage level and Two: Twilight sentinel Headlight come on when day turns to dusk You cant shut either system off without losing something else, like interior lights, dash lights or brake lights Pull fuse 15 on the fuse block on the dashboard
Check the bulbs they are double filamented with the smaller for stop and turn signals
One reason your Yamaha 2004 YFZ450 won't stay running might be that that model has a battery issue such that the battery isn't going to charge unless you run the lights all the time. Another reason might be that the jets in the carbs need cleaning.
When it is raining during the day you should always keep your headlights on.
there is no reason what ever for lights not to work at night unless they are controlled by a light sensor. if they are controlled by a light sensor then u need a light sensor. if you have to switch the lights on manually the switch is defrective ,but if this was the case they would not work during the day either