Cruise Control Inhibited

WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

The engine control module (ECM) inhibits the cruise control operation when any of the following conditions exist:

The ECM has not detected a brake pedal activation from the body control module (BCM).
A cruise control system related DTC has been set.
The vehicle speed is less than 40 km/h (25 mph).
The vehicle is in PARK, REVERSE, NEUTRAL, or 1st gear.
The engine RPM too low.
The engine RPM is too high.
The vehicle speed is too high.
The system voltage is not between 6-16 volts.
The antilock brake system (ABS)/traction control system (TCS) is active for more than 2 seconds.