GMC 2008 Acadia - Manual (Page 155)

Setting Cruise Control
Cruise control will not work if your parking brake is set,
or if the master cylinder brake fluid level is low.
The cruise control light on the instrument panel cluster
comes on after the cruise control has been set to
the desired speed.
{ CAUTION:
If you leave your cruise control on when you
are not using cruise, you might hit a button
and go into cruise when you do not want to.
You could be startled and even lose control.
Keep the cruise control switch off until you
want to use cruise control.
1. Press the cruise control on/off button.
2. Get up to the speed desired.
3. Press and release the SET– button located
on the steering wheel.
4. Take your foot off the accelerator.
Resuming a Set Speed
Suppose you set your cruise control at a desired
speed and then you apply the brake. This shuts off
the cruise control. But you do not need to reset it.
Once you are driving about 25 mph (40 km/h) or
more, press the +RES button on your steering wheel.
The vehicle will go back to the previously chosen
speed and stay there.
Increasing Speed While Using
Cruise Control
To increase the cruise speed while using cruise control:
• Press and hold the +RES button on the steering
wheel until you reach the desired speed, then
release it.
• To increase vehicle speed in small increments,
press the +RES button.
Reducing Speed While Using
Cruise Control
To reduce your speed while using cruise control:
• Press and hold the SET– button on the steering
wheel until you reach the lower speed desired,
then release it.
• To slow down in very small amounts, press
the SET– button on the steering wheel briefly.
Each time this is done, the vehicle will go
about 1 mph (1.6 km/h) slower.
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