To Increase Speed While Using Cruise Control

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

There are two ways to gain higher speed while using cruise control.

Use the accelerator pedal to get to the higher speed, move the cruise control switch downward to the SET/COAST position and release. You will now cruise at the higher speed.
Move the cruise switch upward to the RES/ACC position, hold it there until you get up to the speed you want and release. To increase your speed in very small amounts, move the cruise control switch upward to the RES/ACC position for less than 3/4 of a second and release it. Each time you do this, your vehicle will go approximately 1.6 km/h (1 mph) faster.

The accelerate feature will only work after you turn on the cruise control by pushing and releasing the ON OFF button and setting a cruise control speed.