A window assembly cooperating with a window frame on a golf car cooperating with a window frame on a golf car can include a first window pane that is selectively coupled to the window frame. A second window pane can be selectively coupled to the window frame and offset from the first window pane. A first pair of retaining members can be arranged on the window frame in an installed position and movable between a retaining position wherein the retaining members retain the first window pane in an upright position and a release position wherein the retaining members are disengaged from the first window pane. Each of the first pair of retaining members are defined by a rigid frame having an integrally molded elastomeric body.