GM Service Manual Online
For 1990-2009 cars only

Cruise Control Switch

Important: Unless the driver has previously set the SET button on the current ignition cycle, R/A will not function.

The Off/On/Resume/Accel Switch has 3 positions. This switch turns the cruise control system on and off. After braking, when the driver momentarily moves the control toward the R/A position, the switch returns cruise control operation to the last speed set. If the driver holds the switch in the R/A position for more than one second, the system reverts to Accel mode.

In order to accelerate the vehicle, move the slider switch to the R/A position. Hold the switch there until the vehicle reaches the desired speed. When the driver releases the slider switch, the current speed becomes the new cruise speed. In order to use the Accel mode, the cruise Off/On/Resume/Accel switch must be in the ON position. Also, the vehicle must be above the low speed lockout of 40 km/h (25 mph).

The driver also may use the slide switch in order to "tap-up" the vehicle speed. Complete the following steps:

  1. Turn the cruise Off/On/Resume/Accel switch to the ON position. Set a cruise speed.
  2. Quickly press the slide switch toward the R/A position.
  3. Quickly release, or "tap," the lever.
  4. Do not hold the lever in the R/A position or the system will revert to the Accel mode.

"Tap-up" is a function in which cruise speed may be increased by 0.62 km/h (1 mph) increments (one tap = 1 mph) increase.

Set/Coast Switch

In order to use the Set/Coast function, observe the following notes:

    • The vehicle speed must exceed the low speed lockout point of 40 km/h (25 mph).
    • The Off/On/Resume/Accel Switch must be in the ON position.

The cruise control Set/Coast Switch (located in the end of the turn signal lever) has two positions:

    • Normal
    • Depressed

The Set Position

Depress and release the button switch. The cruise speed will set at the current speed of the vehicle. Cruise speed will be within 0.62 km/h (1 mph) of the vehicle's actual speed when the cruise control was engaged. (NOTE: The driver may no longer set the cruise with the RESUME button.) The system will cruise at the set speed until the driver does one of the following:

  1. Moves the Off/On/Resume/Accel Switch to OFF
  2. Turns off the ignition switch
  3. Fully depresses and holds the Set/Coast Button
  4. Presses the brake or the clutch pedal

When the driver presses the brake or the clutch pedal, the cruise is released, but not the resume capability.

The Coast Position

With the button switch fully depressed, the driver may raise or lower his cruise speed. Complete the following steps in order to increase the cruise speed:

  1. Accelerate to a new speed.
  2. Fully depress the switch (the controller releases the previously set speed).
  3. Release the button.

When the button is released, a new speed is set. The driver may also set an increased cruise speed by the Off/On/Resume/Accel Switch as previously described.

Complete the following stepa in order to decrease the cruise speed:

  1. Fully depress and hold the switch. The controller releases the previously set speed. The throttle returns to idle.
  2. When the vehicle has slowed to the desired cruise speed, release the switch. The system engages at the lower speed.

The Tap-Down Position

In order to "tap-down":

  1. Turn the cruise Off/On/Resume/Accel switch to the ON position. Set a cruise speed.
  2. Quickly press the Set/Coast Button.
  3. Quickly release, or "tap" the button.
  4. Do not hold the button in the depressed position or the system will revert to the Coast mode.

"Tap-down" is a function in which cruise speed may be decreased by 0.62 km/h (1 mph) increments (one tap = 1 mph) decrease. The system can "tap-down" until it reaches the low speed lockout point of 40 km/h (25 mph), after which the cruise will not operate.

The driver may depress the accelerator at any time in order to override the cruise system. When you release the accelerator, the vehicle will return to the previously set cruise speed.