GMC 2004 Sonoma Owner's Manual page 114

ON: Move the switch to this position to turn the cruise
control on.
R/A (Resume/Accelerate): Move the switch to this
position to maintain a desired speed after braking.
SET: Press this button at the end of the lever to set
your desired speed.
1. Move the cruise control switch to ON.
2. Get up to the speed you want.
3. Press in the SET button at the end of the lever and
release it.
4. Take your foot off the accelerator pedal.
Resuming a Set Speed
Suppose you set your cruise control at a desired speed
and then you apply the brake. This, of course, shuts
off the cruise control. But you don't need to reset it.
Once you're going about 25 mph (40 km/h) or more, you
can move the cruise control switch briefly from ON to
R/A (Resume/Accelerate).
You'll go right back up to your chosen speed and stay
there.
If you hold the switch at R/A, the vehicle will keep going
faster until you release the switch or apply the brake.
So unless you want to go faster, don't hold the switch
at R/A.
3-10
Increasing Speed While Using Cruise
Control
There are two ways to go to a higher speed:
•
Use the accelerator pedal to get to the higher
speed. Press the button at the end of the lever, then
release the button and the accelerator pedal.
You'll now cruise at the higher speed.
•
Move the cruise switch from ON to R/A. Hold it
there until you get up to the speed you want,
and then release the switch. To increase your speed
in very small amounts, move the switch briefly to
R/A. Each time you do this, your vehicle will
go about 1 mph (1.6 km/h) faster.
Reducing Speed While Using Cruise
Control
•
Press in the SET button at the end of the lever
until you reach the lower speed you want, then
release it.
•
To slow down in very small amounts, press the
SET button briefly. Each time you do this, you'll
go about 1 mph (1.6 km/h) slower.