2005 Buick Terraza Owner's Manual - Page 141

The cruise control lever is located below the windshield wiper control on the right side of the steering wheel. R SET - (Set/Coast/Decelerate): Push the lever down to set the cruise speed. If the cruise speed is already set this position can be used to coast or decelerate from a higher speed. CANCEL R: Pull the lever to cancel the cruise control speed. Cruise control allows a speed of approximately 25 mph (40 km/h) or more to be maintained without keeping your foot on the accelerator. This is helpful on long trips. Cruise control does not work at speeds below about 25 mph (40 km/h). When the brakes are applied, the cruise control shuts off. If the vehicle is in cruise control and the Traction Control System (TCS) begins to limit wheel spin, the cruise control will automatically disengage. See Traction Control System (TCS) on page 4-9. When road conditions allow, the cruise control can be used again. Q RES + (Resume/Accelerate): Push the lever up to resume the cruise control speed, or to accelerate when passing another vehicle. Press the button on the end of the lever to turn the cruise control on. Press it again to turn cruise control off. J (CRUISE CONTROL) ON/OFF q: 3-11