S10/T10 Blazer 4WD V6-4.3L VIN W (1997)
Cruise Control Switch: Description and Operation
Multifunction Switch
OFF-ON-R/A Switch
The OFF-ON-R/A (Resume/Accelerate) slide switch, located on the multifunction switch, controls four functions.
The OFF/ON Function
When the OFF-ON-R/A switch is in the OFF position the system cannot be engaged. When the switch is in the ON position the system may be
engaged at any speed above approximately 40 km/h (25 mph).
The accelerator may be depressed at any time to override the cruise control system. Release of the accelerator will return the vehicle to the
previously set cruise speed.
The Resume Function
If the cruise control system has been disengaged by depressing the brake or clutch pedal, it may be reactivated by momentarily sliding the
OFF-ON-R/A switch to the R/A position. This will cause the vehicle to accelerate to the previously set speed and cruise at that speed. The resume
function will not work if the OFF-ON-R/A switch has been moved to the OFF position or the ignition switch has been cycled since the last time the
cruise control was active or the vehicle speed is below the low speed lockout of 40 km/h (25 mph).
The Accelerate Function
By sliding the OFF-ON-R/A switch to the R/A position and holding it, the vehicle will accelerate until the switch is released. The cruise control
must be engaged and operating and the vehicle speed must be above the low speed lockout 40 km/h (25 mph) for this function to operate.
The TAP UP Function
For this function to operate, the cruise control must be engaged and operating. "Tapping up" is done by sliding the OFF-ON-R/A switch to the R/A
position and immediately releasing it, or "tapping" the switch. Do not hold the switch in the R/A position or the system will revert to the accelerate
mode. "Tap up" is a function in which cruise speed can be increased by 1.6 km/h (1 mph) increments (one tap = 1.6 km/h or 1 mph increase).
The system cannot "tap up" beyond the vehicle's maximum speed.
SET Switch
The cruise control SET button switch controls three functions.
The Set Function
When the SET switch is depressed and then released, with vehicle speed above the low speed lockout point,and the OFF-ON-R/A switch in the
ON position, the cruise speed will be set at the particular speed the vehicle was at when the switch was released. Cruise speed will be within ±1.6
km/h (1 mph) of the actual speed when engaged. The system will cruise until either the OFF-ON-R/A switch is moved to the OFF position, the
ignition switch is turned to the OFF position, and/or the SET switch is depressed and held. Pushing the brake or clutch pedal disengages the
system, but the set speed is maintained in memory, allowing the cruise speed to be resumed at a later time.
The Coast Function
When the SET switch is depressed, the vehicle speed can be raised or lowered. To increase cruise speed, accelerate to a new speed, depress the
SET switch, so that the PCM/VCM releases the previously set speed, and release the switch. Upon releasing the switch, a new speed is set. An
increased cruise speed can also be more easily set with the ON-OFF-R/A switch as described earlier. To decrease cruise speed, depress the SET
switch to disengage the cruise control system, and allow the throttle to return to the idle position. When the vehicle has slowed to the desired lower
cruise speed, release the switch to cause the system to cruise at the new speed.
The TAP DOWN Function
For this function to operate, the cruise control must be engaged and operating. "Tapping down" is done by depressing the SET switch and
immediately releasing it, or "tapping" the switch. Do not hold the switch in the depressed position or the system will revert to the coast mode. "Tap
down" is a function in which cruise speed can be decreased by 1.6 km/h (1 mph) increments (one tap = 1.6 km/h or 1 mph decrease). The
system can "tap down" to the low speed lockout of 40 km/h (25 mph). Below this speed, the cruise control will not operate.
