1. A vehicle control system for a plurality of vehicle accessories, comprising: a touchscreen display for displaying a graphical HMI and detecting a contact point on the display established manually by touching by a finger of a user, wherein the graphical HMI defines feature icon selection regions and a separate submenu portion, wherein each feature icon selection region corresponds to a respective vehicle accessory, and wherein the submenu portion represents adjustment icons in a submenu selectably displayed corresponding to adjustable parameters of a selected one of the feature icon selection regions; a haptic texture system having an electrode disposed across the touchscreen display and a signal generator generating an oscillating signal to produce a potential difference between the finger and the electrode resulting in a corresponding perceived texture as the finger slides over the touchscreen display; and a control circuit that is configured to set at least a frequency or amplitude of the oscillating signal to vary the perceived texture according to first and second modes while navigating the graphical HMI, wherein the first mode uses a localized texture mapping defined according to the feature icon selection regions on the touchscreen display, wherein the localized texture mapping in the first mode varies the perceived texture according to proximity of the contact point to each feature icon selection region, wherein the second mode uses a status texture mapping relating intensity of the perceived texture to an adjusted intensity of each potential adjustment setting available in the selected submenu; wherein the second mode changes the status texture mapping in response to the selected feature icon selection region while the localized texture mapping of the first mode is unchanged.