Cruise Control Messages
CRUISE SET TO XXX MPH (KM/H)
This message displays whenever the cruise control is set. See Cruise Control for more information.
See also:
Average Fuel Economy or Average Fuel Economy and Instantaneous Fuel Economy
The Average Fuel Economy display shows the approximate average liters per
100 kilometers (L/100 km) or miles per gallon (mpg). This number is calculated
based on the number of L/100 km (mpg) recorde ...
Tire Pressure Light
For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on
briefly when the engine is started. It provides information about tire pressures
and the TPMS.
When the Light Is O ...
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will
check the engine, transmission, antilock brakes, and major vehicle systems.
It also checks the tire pressures, if the v ...






