Circuit/System Description
WARNING: This page is about a different car, the 2022 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.
The V-Mode switch is part of the S70R Steering Wheel Controls Switch - Right. It is a normally open switch that closes when the switch is pressed. The K9 Body Control Module monitors the switch on signal circuit 4990 and the switch receives a constant ground on ground circuit 1450. When the V-Mode switch is not pressed, the switch is open and signal voltage observed by the K9 Body Control Module is high. When the V-Mode switch is pressed, the switch is closed and signal voltage observed by the K9 Body Control Module is low.