My left stop light does not come on, but the turn signal that uses the same bulb works.

[platypus]

I'm trying to find out where i should check to fix this problem. I have a 2011 Tribeca if that helps.

Thanks

 

[Dick Foster]

I doubt it the same bulb. Used to be dual filament lamps but these days they're all LEDs.

 

[platypus]

I'll check it out. Thanks for the reply.

 

[jvanpotter]

I'm trying to find out where i should check to fix this problem. I have a 2011 Tribeca if that helps.

Thanks

2011 would have been dual-filament bulbs. Probably the bigger filament is broken, and a replacement bulb is needed. Your manual should have the specs for all the bulbs.

 

[platypus]

2011 would have been dual-filament bulbs. Probably the bigger filament is broken, and a replacement bulb is needed. Your manual should have the specs for all the bulbs.

Thanks for you and Dick's suggestion, but it doesn't seem to fix the problem. I took out the bulb from the bad socket and put it in the rear right socket and it functions normal, meaning that the stop light and right turn signals both work. The bulb# is 1156, and only has one filament as far as I can see. So the problem appears to originate somewhere else.

 

[bmart]

Have you checked the sockets with a meter...and your eyes for corrosion?

 

[platypus]

Thanks, i will check it out.

 

[platypus]

Have you checked the sockets with a meter...and your eyes for corrosion?

I checked it out and to my surprise and foolishness, my eyes must have been corroded because I inadvertently mixed up the upper light from the lower light at some point. The upper was the culprit and the bulbs are dual filament.
Thank you everyone for your help.