License plate light will not stay on this for a 2007 chevy tahoe,what do i have to disassemble to check wiring

According to a post on Traverse Forum, the issue might not be with the bulbs themselves, but rather with the connectors that slide onto the bulb. These connectors may be corroded, which could prevent the bulbs from working . Another possibility is that the lens the bulb attaches to may be full of dirt, especially if you live in a dusty area .

If neither of these solutions work, it's possible that there is a problem with the fuse for the license plate lights. The license plate lamps are powered by the 10 amp left parking light circuit fuse located in the under hood fuse panel. If any of your parking lamps on the left side are out, this could be the problem. If those lights are working, then the fuse should be good. The fuse is easy to get to, so it's worth pulling it out and reseating it or replacing it .
Fuse box location and diagrams: Chevrolet Tahoe (2007-2014) - YouTube

Not told! However, this gives a clue right here on Fixya

SOLVED: Location of fuse box for license plate light on a - Fixya

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Oct. 23, 2011 - location of fuse box for license plate light on a 1998 chevy cargo van - Cars & Trucks question.
1 answer · 3 votes: The license plate bulb is fed off the same fuse as the parking lights/tail lights.

Chevrolet Express (2003-2020) fuses and relays

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Fuse box diagram (location and assignment of electrical fuses and relays) for Chevrolet (Chevy) Express (2003, 2003, 2005, 2006, 2007, 2008, 2009, 2010, ...

check bulb the number plate light runs on the same circuit as the side lights so if they are working its got to be a bad earth on the plate light

Do the park lamps work ? license plate lights get power from same fuse ! Check ground wire ! use a volt meter an do voltage drop test ! Voltage Drop Testing The fuse for the license plate lights is in the under hood fuse box -engine compartment ! fuse #12 RT PRK LAMP 10Amp .

Check the brake bulb socket for short , clean replace bulbs , check connector to rear licence plate lights . Also trailer harness for short , all on same fuse circuit .

Park lamp relay contacts maybe stuck closed .
Body Wiring Harness Junction Block
Under the left side of the instrument panel near the left kick panel

Hello,

If you notice should be a couple small screws to remove lens to get to bulb. A lot of times it just a loose bulb or the prongs on end of bulb that hits the copper connection. First take bulb out, replace it, even though it works, but new one would have nice new connection, and before putting it in, spray inside where bulb goes with electrical cleaner can get at any auto supply, then put in. Should work. On a 2007, it is unlikely there is a ground problem, but if so, after trying this, get back to me and I will tell you how to check wires and what to do. NOW understand sometime even though the bulb is not blown it is not getting a good connection from bottom of bulb to copper prongs on female side insert. I do not thing it is wiring as said earlier.

Mike

I presume you have your head lights on when you are checking the running lights ...

Replace the burned out license plate light

the headlamp switch controls the license light. the filament in all bulbs react as a fuse when shorted out. replace the bulb

the light can be replaced from the back side of the light housing . go under the back side of bumper under the truck behind lisence plate you will see the where the wire goes to the light . grab the housing not the wires and twist about a half a turn and pull gently. it should come out and then remove the light bulb and replace with new