We have a 2000 jeep grand cherokee laredo. We have changed bulbs, replaced a socket, and the drivers side tail light dosen't work. The brake light, turn signal, and back up lights do. Only the left tail light dosen't. How can we fix this??

SOURCE: I have a 1999 Jeep Grand Cherokee Laredo - One Brake Light

First, I want to say thank you for the info, you saved me money and aggravation. Second it took mea little while to figure out what contact I was looking for. So I would like to provide a little more detail to make it easier for others in the future.
This is the corrective method for your brake lights not working when your headlights are on(2000 Jeep Cherokee Larado).
1) The cause of the problem is heat from the bulb.
2) Remove the light assembly as if you were going to change a bulb.
3) Turn the socket and remove it from the taillight assembly and set it aside(check to be sure your bulb is not burnt out).
4) Look at the opening, you will see 3 flat chrome colored contacts on the assembly.
5) Notice the one by it self at the top of the opening, that is the "ground".
6) If you look closely you will notice the plastic around the ground contact has shrunk a little bit, this caused the contact to pull away from the socket, causing the problem.
7) With a small flat head screwdriver, VERY GENTLY pry up the contact so it stays slightly upward by itself.
8) Re-insert the bulb assembly back into the housing and press your brake petal with your lights on.
9) You should be in good to go!
10) Tools: Phillips head screwdriver and a small flat head screwdriver.
11) Time : 5 minutes per light

SOURCE: 2000 Grand Jeep Cherokee Laredo both brake lights

try replacing the sockets in the tailights/brake lights. worked for me. $10 each. i had to replace all of mine because just replacing the brake sockets didn't solve the problem on the right side. you can test it by exchanging tail light for brake light socket and if that works you know it is the socket

SOURCE: Which way do the tail light bulbs go into the

if its a singel filermit buld it gos in any way round

SOURCE: 2004 Jeep Grand Cherokee Special

If all lights work properly and tail lights( also called as turn signal lights) not working then, it can be issue with fuse.The fuse is shorted, blown and needs to be replaced.---------- Click this link below to see fuse diagram :--- http://howtobyme.blogspot.com/2011/08/fuse-box-diagram-for-2004-jeep-grand.html------------- But if fuses checked out ok, then get the wires checked for tail lights to bulb, there should be voltage, if the voltage is not there then its the problem with connection.Check the connections for ground.This will help.Thanks.Helpmech.