2000 Jeep Grand Cherokee Laredo when lights are on left brake lamp/tail lamp goes out when you step on the brake. When lights are off it works fine. On the right side, the right tail light does not work but the brake light comes on when you apply the brakes. Replaced bulbs, sockets... what now?

SOURCE: the tail lights are out, so the brake lights-Jeep Grand Cherokee

The park,brake light sockets have a tendency to melt. I would try swapping the turnsignal socket with the brake light socket and see if it works. They just twist out.

Mike Butler

• 6674 Answers
• Posted on Feb 03, 2009

SOURCE: change a serpentine belt on 04 jeep grand cherokee laredo

Check this link & scroll down to your engine. Click on picture to expand.

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528004328a

SOURCE: 2002 jeep cherokee laredo

My 98 Jeep Grand Cherokee had the same problem. Over heated when standing still. Took it to dealer and they could not find any problem with cooling fan. After doing my own investigation I found out that the electric cooling fan would begin to seize up after about 1hr. of operating. (gets hot)

The dealer would look at fan and see that it was running and think its ok. The problem is, it wasn't running fast enough.

I have a relay on the right side of front fender and jumped the fan to stay on with motor off. (must know what your doing). After about 1hr. fan started slowing way down. Returned it to dealer told them what the problem was. They were not smart enough to jump the relay so they put a couple hundred miles on it even though i told them it works OK when moving. Make sure you tell dealer to use the relay to jump.
Replace cooling fan motor. Works great

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: fuse box diagram for 1995 jeep grand cherokee laredo

look on the net that is where i got mine