Cruise Control Inhibited

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The ECM inhibits the cruise control operation when any of the following conditions exist:

A cruise control related DTC has been set.
The antilock brake system/traction control system is active for more than 2 seconds.
The engine RPM is too low.
The engine RPM is too high.
The system voltage is not between 9 volts and 16 volts.
The vehicle speed is less than 40 km/h (25 mph).
The vehicle speed is too high.
The vehicle is in PARK, REVERSE, NEUTRAL, or 1st gear.