Lumina APV V6-191 3.1L (1990)
Cruise Control Switch: Description and Operation
Fig. 1 Cruise Control Switch
The mode control assembly, Fig. 1, consists of a 3 position slide-type switch and a set/coast switch button. To operate the system, the slide switch
must be in on position and vehicle speed must be above 25 mph. The system is engaged at the desired speed by fully depressing, then releasing the
set/coast button. Cruise speed can be increased from set position by accelerating vehicle to desired speed, then pressing and releasing button. In order to
decrease speed, the set/coast button is held in the fully depressed position (disengaging system), then released when the desired speed is reached. The
system can be disengaged at any time by depressing the brake or clutch pedal, or by moving the slide switch to off position.
If the system is disengaged by depressing the brake or clutch pedal, the last set speed will be retained in the module memory until the slide switch or
ignition switch is moved to off position. Momentarily moving the slide switch to the resume/accel position will cause the vehicle to accelerate to the last
set speed and maintain that speed. If the slide switch is held in the resume/accel position, the vehicle will continue to accelerate until the switch is
released. When the switch is released, the speed that the vehicle accelerated to becomes the new set speed.
The slide switch also allows a tap-up function to increase cruise set speed in 1 mph increments. With the cruise control engaged and operating,
tapping-up is done by pressing the slide switch to the resume position, then quickly releasing it. This procedure can be repeated 10 times before the
system must be reset to a new speed in the conventional manner.
