Opel Grandland X Owner's Manual page 162

160 Driving and operating
Switching on
Press m on the steering wheel:
symbol m and Pause are indicated in
the Driver Information Centre. The
system is still not active.
Activation
Setting speed by the driver
Accelerate to the desired speed and
press toggle switch once briefly to
RES/+ or SET/-. The current speed is
stored and maintained. Accelerator
pedal can be released.
The preset speed can then be
changed by pressing toggle switch to
RES/+ to increase or SET/- to
decrease the speed. Short press
changes speed in small steps, long
press in large steps.
Speed value is indicated in the Driver
Information Centre.