New here and need some expertise.
Back story probably unrelated but the battery was replaced on Sunday. Monday left turn signal started flashing fast and taillights on left side are slightly dim. Replaced the lower bulb and worked for a day but still slightly dimmer than right side. Then same situation so I replaced the upper bulb. and all lights went dead on left side. Turn signal now flashes the back up (white) center bulb but no tail lights on left. Any idea where to start or has anyone encountered anything like this?

 

Welcome to the forum.

This sounds more like a wiring or bad ground issue rather than bulbs.

 

Hi there,

Very sorry for this! If you consider taking your vehicle into the dealership, and need any additional assistance, please feel free to send us a private message. Be sure to include your VIN, current mileage, contact information and a preferred dealership.

Patsy G
Chevrolet Customer Care

 

Figured it out it was / is the pigtail clip for the left rear tail light bulb chain. Got it apart & cleaned it with DX-5 but it is still intermittent going to get a new one tomorrow.
Thanks & FYI

 

Glad you found the problem. Thanks for reporting it back to the forum. It might help someone in the future. That helps make the forum work.