GMC 2008 Canyon - Manual (Page 14)

Rear Seat Operation (Crew Cab)
The rear seatback(s) in the crew cab can be folded
forward.
Notice: Folding a rear seat with the safety belts
still fastened may cause damage to the seat or
the safety belts. Always unbuckle the safety belts
and return them to their normal stowed position
before folding a rear seat.
To fold the rear seatback(s) forward, do the following:
1. Disconnect the rear center safety belt latch from
the mini buckle by inserting the tip of the safety belt
tongue into the slot on the buckle. Let the belt retract.
2. Pull the loop, located
on the outboard side of
the seatback, forward
until you hear a click.
3. Fold the seatback(s) forward.
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