2009 GMC Canyon Owner's Manual - Page 33

Shoulder Belt Height Adjuster The vehicle has a shoulder belt height adjuster for the driver and right front passenger seating position. Adjust the height so that the shoulder portion of the belt is centered on the shoulder. The belt should be away from the face and neck, but not falling off the shoulder. Improper shoulder belt height adjustment could reduce the effectiveness of the safety belt in a crash. To move it up or down, squeeze the release buttons (A) together and move the height adjuster to the desired position. Safety Belt Pretensioners This vehicle has safety belt pretensioners for front outboard occupants. Although the safety belt pretensioners cannot be seen, they are part of the safety belt assembly. They can help tighten the safety belts during the early stages of a moderate to severe frontal or near frontal crash if the threshold conditions for pretensioner activation are met. Pretensioners work only once. If the pretensioners activate in a crash, they will need to be replaced, and probably other new parts for the vehicle's safety belt system. See Replacing Restraint System Parts After a Crash on page 1-78. After the adjuster is set to the desired position, try to move it down without squeezing the release buttons to make sure it has locked into position. 1-29