GMC Terrain: Setting Cruise Control / Increasing Speed While Using Cruise Control

GMC Terrain 2018-2023 Owners Manual / Driving and Operating / Cruise Control / Setting Cruise Control / Increasing Speed While Using Cruise Control

If the cruise control system is already activated:

Press and hold +RES on the steering wheel until the vehicle accelerates to the desired speed, then release it.
To increase the speed in small increments, briefly press +RES. For each press, the vehicle goes about 1 km/h (1 mph) faster.

The speedometer reading can be displayed in either English or metric units.

See Instrument Cluster (Base and Midlevel) or Instrument Cluster (Uplevel). The increment value used depends on the units displayed.

Resuming a Set Speed

If the cruise control is set at a desired speed and then the brakes are applied or is pressed, the cruise control is disengaged without erasing the set speed from memory...

Reducing Speed While Using Cruise Control

If the cruise control system is already activated: Press and hold –SET until the desired lower speed is reached, then release it. To slow down in small increments, briefly press –SET...

Other information:

GMC Terrain 2018-2023 Owners Manual: Service Emission System

If a problem occurs with the vehicle emission system, the DIC message SERVICE EMISSION SYSTEM - SEE OWNERS MANUAL NOW – 282 KM (175 MI) UNTIL 104 KM/H (65 MPH) MAX SPEED displays. The displayed mileage will decrease as driving continues. In some cases this message will clear itself, indicating that the emission system was able to correct the condition...

GMC Terrain 2018-2023 Owners Manual: Adaptive Cruise Control