I just bought a 2017 Sierra and it has T4F listed for the lights. It has HID for headlights and led for fog lights. When searching for led replacement I can’t find anything compatible. Is my only option to replace the whole lens with the factory led ones? I’m sure after market leds will come out at some point. Sent from my iPhone using Tapatalk
I just had mine done last week, makes a big difference at night being able to see side mirrors. the TSB- 17-NA-269 worked perfectly. it took about an hour for the dealer to push the update
I recently read a thread about the 2017 backup camera not being able to be dimmed. however I didn't see an update for a fix. I asked on the post but no response , did anyone have the same issue and have it resolved