GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 Sonoma Pickup - 2WD 🢒 Body and Accessories 🢒 Cruise Control 🢒 Cruise Control System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. Drive the vehicle at a speed greater than 25 MPH.
  2. Move the cruise control switch to the ON position.
  3. Press and hold the SET/COAST switch for 2 seconds.
    • The cruise control engages.
    • The cruise control maintains the desired speed.

Cruise Control Inoperative

2

Press and hold the RESUME/ACCEL switch.
    • The vehicle accelerates when the switch is pressed.
    • When the switch is released, the vehicle maintains the speed at which the switch was released.

Does Not Resume, Accelerate, or Tap Up or Down

3

Press and hold the SET/COAST switch.
    • The vehicle decelerates when the switch is pressed.
    • When the switch is released, the vehicle maintains the speed at which the switch was released.

Cruise Control Inoperative

4
  1. Depress the brake pedal.
  2. Press and release the RESUME switch.
    • The cruise control disengages. The vehicle decelerates.
    • The cruise control re-engages. The vehicle returns to the previously set speed.

5

m
  1. Depress the clutch pedal.
  2. Press and release the RESUME switch.
    • The cruise control disengages. The vehicle decelerates.
    • The cruise control re-engages. The vehicle returns to the previously set speed.

Does Not Resume, Accelerate, or Tap Up or Down

6

In order to Tap-Up, press the RESUME/ACCEL switch for 1 second and release.

The vehicle accelerates in 1 MPH increments for each tap of the switch.

Does Not Resume, Accelerate, or Tap Up or Down

7

In order to Tap-Down, press the SET/COAST switch for 1 second and release.

The vehicle decelerates in 1 MPH increments for each tap of the switch.

Does Not Resume, Accelerate, or Tap Up or Down

8
  1. Press the SET/COAST switch and the RESUME/ ACCEL switch at the same time.
  2. Press and release the RESUME switch.
    • The cruise control disengages. The vehicle decelerates.
    • The cruise control re-engages. The vehicle returns to the previously set speed.

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.