Front Seat Heater/cooler Problems of GMC Sierra

The contact owns a 2015 GMC Sierra. While driving approximately 60 mph, the vehicle began to vibrate. The longer the vehicle was driven, the more it shook. The contact took the vehicle to the dealer several times, but no failure was found. The dealer test drove the vehicle and it did not vibrate. The dealer replaced the tires, transmission, and shocks; however,, the failure recurred. The vehicle was not repaired. The contact stated the seat warmers also failed. The manufacturer was not made aware of the failures. The approximate failure mileage was 2,500.

See all problems of the 2015 GMC Sierra 🔎.

The driver's side seat heater randomly comes on. If you turn it off it comes right back on again and cycles through the various heat settings. It creates a dangerous distraction in the florida heat. I've taken it to numerous dealers, none of which can fix it. I call gm and they won't even consider it until I take it back to a dealer saying they will only get involved if I have taken it to a dealer within the last 30 days. One dealer told me that was a lie, there is no 30 day requirement. This issue is more of a distraction than texting. Looking it up online it's a common problem but gm denies it even though gm did issue a TSB to have the drivers door module reprogrammed. I had that done and it made the problem worse. A straight up safety issue. I have the same problem with a 2005 suburban and filed a complaint on that one too. Nothing came of that either so it appears this site and agency is nothing more than a sounding board. Gm and NHTSA cannot afford to distance themselves from this.

See all problems of the 2006 GMC Sierra 🔎.

Driver seat heater turns on by itself creating an extremely unsafe driving condition in the summertime in high density traffic with sun glare a problem and an inability to effectively turn the seat heater off. This problem has been reviewed both by the local Chevrolet and GMC dealers with the ultimate corrective action being to disconnect the seat heating elements. While this addresses safety for me it falls short of providing me with a functioning seat heater as purchased. Also the corrective action does not give consideration to a potentially general existing problem---which is the more important reason that I make this report.

See all problems of the 2005 GMC Sierra 🔎.

The driver seat heater randomly turns on by itself. It randomly switches from the seat to the back of the seat to both at the same time, in no particular order. When I turn it off it just comes right back on again. I had the module in the door replaced one time, but it still does it. I live in the south, so it's extremely unbearable during the summer months. I will go for weeks at a time when it doesn't do it, but then it just seems to start again. There really does not seem to be anything in particular that triggers it. I thought maybe it was getting wet when it rains, but since I live in the south we have high humidity 95% of the time, so we have moisture problems here all the time. I can go for weeks that it doesn't happen, then it just starts up again. I have searched the problem on google and found that other people complain about the same problem with this particular model, but I can not find a safety recall issued by GMC.