The black trim on the passenger side door (covering the space between the front & rear doors) has come loose and the vibration is noticeable at highway speeds. This is not covered by the certified pre-owned warranty or the extended warranty I purchased separately from the dealer. The dealership has told me it's a $250 repair and have heard many complaints of this already from other owners. I've got one in need of repair now and another is coming loose on the other side. As the vehicle owner, I'm surprised the manufacturer is not taken care of this on a 2 yr old vehicle and I'm concerned at $250/trim this is going to be costly issue going forward if they don't address it.

- Byron, MN, USA

I have a 2015 Suburban and the door trim between the doors comes loose. Our vehicle is out of warranty we took to the dealer and the service tech says they have having a lot of issues with this. We were just in a 2015 GMC denali and they are having the same thing going on.

- Grundy Center, IA, USA

Sail panels (pillar caps) came loose from their mounts. Internet search revealed that this is a problem with 2014 and newer Suburban type vehicles. Mounts can detach from the vehicle at high speed due to wind. They would be a traffic hazard to other vehicles, motorists or pedestrians.

- Pequot Lakes, MN, USA

The vehicle has an unusual vibration at highway speeds. The roof bows have detached from the roofing sheet metal causing the sheet metal to vibrate. The vibration causes the headliner to detach, and associated components (heat/ac vents and lights) to fall on occupants. The vibration causes significant air pressure issues which create dizzying effects and headache. In this case, the dealer has re-attached the roof bows twice and now they are detached again, but the vehicle is out of warranty. This is a common problem with these vehicles and can be found in multiple locations online, however GM is refusing to fix this problem. www.cbsnews.com/news/is-your-GM-vehicle-making-you-sick/ www.autoblog.com/2015/12/30/fullsize-GM-SUVS-making-owners-sick-report/ www.autoguide.com/auto-news/2015/12/there-S-A-big-issue-with-GM-S-SUVS-and-no-one-seems-to-have-A-solution.html

- Wilmore, KY, USA

Roof will not remain attached to the roof bows. This causes buffeting similar to a window being down when all are up. The results span from annoying to painful. Also the vehicle exhibits loud booming noises over rough pavement that is not prevalent when the roof is secured. The dealer repaired and reattached the roof bows but the repair only lasted about 2 months and a 1000 miles. The dealer has stated they have done all that they can. If the vehicle was crash tested with the roof attached to the support bows then it seems that a roof that has detached could be less safe to unsafe since bow collapse and trajectory during a rollover will be altered. A further issue is that when the roof bow behind the sunroof detaches, the roof lifts and this can cause leaking. As can be seen in the pictures, one shows the forward sunroof to roof interface which is very uniform. The rear surface as lifted in the middle and will get higher with time. The third picture shows the arc in the roof

- San Diego, CA, USA

The drivers front door vertical trim in coming off and catching in the wind. Creates a loud wind noise when going down the road. The piece will not snap back into place.

- Nashville, GA, USA

The contact owns a 2015 Chevrolet Suburban. The contact stated that the front spoiler was too low causing it to encounter the ground when driving. The vehicle was taken to a dealer, who adjusted the spoiler but the failure recurred due to the location the spoiler was re-positioned. The contact mentioned that the front spoiler continued to fracture especially when driving over an uneven pavement. The manufacturer was notified of the failure. The VIN was not available. The failure mileage was not available. Updated 6/18/15

- Bow , WA, USA

I purchased a brand new 2015 Chevrolet Suburban lt on December 20, 2014 and by December 23, 2014, there was a major water leak about the driver visor and headliner and equipment failures. I noticed that the gps, compass, onstar and mylink were no longer working. As of December 31, 2014, I still do not have my Suburban back and I have been told that part is not available in the us.

- Nashville, GA, USA