I am not familiar with the Tahoe but when both headlights go out on any car at the same time it is not usually not that both bulbs burned out at the same time. Usually something happened to the electricity. First you check for a fuse. Information about the fuse box will be in the owner's manual. Next, you check the switch to see if it has electricity coming out of it. If you have electricity leading from the light switch to the running lights, then you check to see if you have electricity going into the running lights. If you do, you have burned out bulbs or a bad socket. Otherwise, you have a bad wire.
No it did not.
headlights
yes
There is a relay in the emergency brake which turns them off. Sometimes it can be sticky. pull up on emerg pedal.
Running light bulb replacement is simple on the Chevy Tahoe. I just did it today on my 2000. Follow the easy and well written instructions in the vehicle manual under "bulb replacement". No tools necessary.
If you have been playing around the bottom of your seat you could of touched the E- brake just a tad and they will go off, you will notice if your brake light is on that means your running lights are off, DEC 22/09 it caught me by surprise.
NO.
I just repaired the same problem in my '99 Tahoe. The Daytime Running Light Relay sits in the convenience center above where the driver's left foot sits. It is a black box about an inch or two square in the center bottom of the center. If you pull it out it has 5 prongs and costs about $10. Replaced it and my lights came back.
remove the two pins on the head light . reach down in to the back and there is a clip that you must pull and the whole light will come out . trun the blub counter clockwise and remove the blub by pulling out of the socket insert the new one and that's it
I have the same problem on my Tahoe and I was told that if the green indicator light is on and all the fuses are good that it is either the module or the diode. I'm not sure where the module is but the diode I found under the dash. It looks like a small finned heatsink.
It will vary depending on year of Tahoe. In general, Chevrolet Tahoe daytime running light (DRL) bulb replacement: Purchase the correct replacement daytime running light (DRL) bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the daytime running light (DRL) bulb replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
how do you remove the running boad plastics on a 06 tahoe