An apparatus for a vehicle having a fluid reservoir fillable with fluid from a container includes a fill tube that empties into the reservoir. A funnel is fixed to the fill tube. The funnel collapses to a stowed position and extends to a use position. The funnel collapses and extends only outside of the fill tube. A cap is connected to the funnel and seals the fill tube opening when the funnel is in the stowed position. The cap is removable from the fill tube opening and has an extension that opens a seal of the container when the funnel is in the use position to permit filling of the reservoir through the funnel and the fill tube.