i have a1999 montecarlo.center brakelight in rear window works,left and right does not.turn signals andruning lights work fine.can any one help me with this.[:@]

 

did you change the bulbs??

 

Replace both the left and right brake light bulbs.
If I am correct the turn signal bulb is a different bulb located in the upper corners.
So I would say since the center brake light is working means the brake light switch is doing its job,
Which in turns would state the both brake lights are burnt out.

 

yah they're all seperatte i think, and they're all 3057 bulbs