Drivers side led brake light does not function. vehicle has 52,000 miles. known defect yet gmc does not offer repair. requires $800 light assembly replacement.
The gmc yukon models in all trims, have faulty led strips that cause the brake lights to fail on the left, and right brake light assembly. the frustrating part is it works intermittently, and when it's off a slight tap will momentarily bring it back on for the duration of the jolt. this leads me to believe that it's faulty connection inside the seals brake light assembly. there are thousands of complaints online on owner forums of gmc yukon's . this is known as the new year models 18-19 are not having the same issue.
The rear passenger light assembly has failed. no lights within the housing are currently working. the unsafe condition exists when the vehicle is in motion, as it has no running lights, brake lights or turn signals. this appears to be a very common problem for yukon's of this year, which are still fairly new.
Driving from prescott, az to phoenix, az with my husband and 3 year old son. we were heading east on sr-69 when we were pulled over. we were informed that our passenger side brake light was non-operational. after inspection it was found that turn signal and hazard lights worked but not break. a repair order was issued. we took it to the gmc dealership and was told the whole tail/brake light housing, wire, and potentially the fuse needed replaced and that it would cost $700. we were also told by the dealership that a they have had several gmc yukon owners come in with the same issue and that it was a part malfunction that may or may not be covered by out warranty.
Tail lights intermittently work. dealer claims full tail light assembly required to fix (at ~$850) and not covered by any warranty. hundreds of complaints online of similar problem. safety concern because problem is intermittent. independent repair shops post fixes to solution by melting plastic housing and connecting metal pieces on circuit board assembly that break (this is just a thin metal plate that was poorly designed and cracks at a similar point frequently. i think this is a faulty design that exposes many customer era to great risk and should be covered by gmc. please look into it. car is in motion, stationary or turning when happens. brake lights are light that is impacted.
2017 yukon (only been in use for 19 months) ds brakelight assembly (red led outter ring) stopped working.
Pulled over by police for malfunctioning lhr brake light. entire rear lamp assembly must be replaced since it is an integrated circuit board with led lamps. $700 plus installation. several victims on-line discussion forums.