Hello!!! My rear lights on 2004 Malibu stopped working. Brake lights work and turn signals but not lights at night. Why?

There are three fuses involved.
There is a 25 amp fuse before the brake switch located in the fuse box under the hood. Then there are two 15amp fuses after the brake switch in the box inside the cabin. One is for the lower brake lights and the other is for the high mount light and the trailer connector.
You would need to know if the 15amp fuse for the lower lights has power when the brake pedal switch is applied.

if rear window stop light works has blown globes in other 2 tail and stop are different circuts fit 2 new globes only go in 1 way

Hi, you need to test if the power is coming to the plug for rear brake light. If the power is not there that is your first problems. Also may have earth wire problem.

replace both bulbs,, on the chevy they use the new bulbs with the very thin wire that goes into the socket, they have been having problems with the plastic in the socket getting hot and being partially covered, which makes the connection no good,, try this, with a small, screwdriver or if you have one a small pick tool, gently pry the wire outward from the socket,, Just a very little will do the trick,, then put the bulb in the socket, you should be fine after that ,, if the rear lights are working, then nothing is wrong with the signal switch, since they are on the same circuit. your hazard switch you replaced was probably ok also. if this doesn't work, do the same thing on the bulbs,, to insure a good contact

There were problems with the circuit board assemblies on the earlier years of the Envoy. Also check the socket for the brake light, make sure the contacts are OK.

check all related fuses.Fuse panel on left side of dash.

If the third brake light always works, then it is the turn signal switch. If the third brake light does not work, it is probably something else. The turn signal switch is in the steering column. You have to remove the airbag and steering wheel, take out all of the componets and replace the turn signal switch. Special tools are required and a moderate level of mechanical ability. Watch the airbag, it can go off and cause serious injury!!

Hello,
The rear turn signals are wired through the Multifunction switch also called the turn signal switch. The Hazard switch is in that switch also and thats the circuitry the brake lights go through. You need to confirm voltage at the White wire off of the brake light switch and if its ok you have a bad multifunction switch.

I hope this helps.

Roy

did you check the light bulbs .remove bulb and check the contact points and see if melted if so replace bulbe