Chevrolet 1996 Tahoe Owner's Manual page 100

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 indicator light
is a reminder to turn your headlamp switch on. The
other lamps that come on with your headlamps will
also come on.
When you turn the headlamp switch off, 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.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Underhood Reel Lamp
If you have an underhood reel lamp, it is located inside
the engine compartment on the rear passenger side of
the engine compartment. You can use it as a flashlight.
To use the lamp, pull up on the lever and pull the lamp
out. The cord will unreel as you pull the lamp.
When you are done using the lamp, reel the cord back
into the housing by turning the handle.
Then, slide the lamp into the holder. Press PUSH on the
lever to hook the lamp into the holder.
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