2009 Hummer H3T Owner's Manual - Page 10
2009 Hummer H3T Manual
Page 10 highlights
1-6 Seats and Restraint System To return the seatback to an upright position: 1. Lift the lever fully without applying pressure to the seatback. 2. Push and pull on the seatback to make sure it is locked. { CAUTION Sitting in a reclined position when the vehicle is in motion can be dangerous. Even if when buckled up, the safety belts cannot do their job when reclined like this. The shoulder belt cannot do its job because it will not be against your body. Instead, it will be in front of you. In a crash, you could go into it, receiving neck or other injuries. (Continued) CAUTION (Continued) The lap belt cannot do its job either. In a crash, the belt could go up over your abdomen. The belt forces would be there, not at your pelvic bones. This could cause serious internal injuries. For proper protection when the vehicle is in motion, have the seatback upright. Then sit well back in the seat and wear the safety belt properly. Do not have a seatback reclined when the vehicle is moving.