A seat assembly for a vehicle includes a back frame, and a foam cushion assembly positioned adjacent the back frame. A trim cover is secured over the foam cushion assembly. The trim cover includes a first edge and a second edge sewn together to define a tear seam. A side airbag module is attached to the back frame. The side airbag module includes an airbag that is deployable through the tear seam. A guide chute includes a first strap end attached to the trim cover adjacent the tear seam, and a second strap end attached to a component of the seat assembly other than the back frame, such as the foam cushion assembly.