2016 GMC Sierra 1500 Seats Problems

“I've had movement in my drivers seat since the day I've owner the truck. Gmc put in a shim kit to address the problem but it's still acting up. They refuse to replace or repair any further. Also my transmission has a horrible shifting problem. When it's cold out or after the first time shifting into gear after sitting a long time, the truck lags to shift into gear then all of a sudden lunges forward or backwards depending on which gear I'm in. I've almost ran through my garage door and side fence and had to slam on the brakes. Gmc has looked into the issues but won't resolve them. …”

“The driver seat does not go up and down.this is a big safety feature purchased new I can barley see over steering wheel why would you make seatslike this”

“Rear bench seat headrests do not stay locked in position when raised. Leaning head back onto headrest causes them to lower which could result in injury to the base of the neck or head during a crash. Also, headrests are too low for full size adults to adequately protect the head/neck from hitting glass rear window during hard stop or crash. Took vehicle to dealership to investigate. Dealer indicated all 2016/2017 model trucks on their lot function this way. Asked to report it here. Rear seat headrests need to be recalled to allow for a locking mechanism to be installed. …”

“Neither of the two rear seat head rests stay up. Also, they are too low when extended to full height to protect an adult from head injury in a crash or hard stop. Your head hits the rear glass window. I am 5'-9 tall. The head rest does not lock or remain up in any position. Applying very light pressure to the head rest causes it to drop all the way down. This occurs if you sit in the seat and lean your head back. I'm concerned that someone will be injured if these head rests aren't made to engage and stay in the extended positions. …”

“-Engine gas consumption state 21 MPG Highway, 17 MPG Combined and 15 MPG City. When I started using this vehicle during the first weeks and months the best MPG I could get at the highway is 18.5 MPG with top tier gas such Shell & Chevron during the first 2 years and now Costco brand. Every since I bought it, the gas MPG have gone down around 0.5 MPG. The vehicle feels that it has to use more gas in order to perform. -The motor oil pump at times moves down from the 40 mark to the 20 when idle at traffic light and when it starts moving, it temporarily moves to the 60 mark. …”