OnStar Services

See also:

AVG (Average) Economy
Displays the approximate average liters per 100 kilometers (L/100 km) or miles per gallon (mpg). The calculation is based on the number of L/100 km (mpg) recorded since the last time this di ...

Skip Shift (CTS–V)
Under light acceleration, the transmission will only allow you to shift from 1 (First) to 4 (Fourth). Shifts from 1 (First) to 2 (Second) or 3 (Third) are not allowed. This helps improve fuel ...

Passenger Safety Belt Reminder Light
When the vehicle is started this light flashes and a chime may come on to remind the front passenger to fasten their safety belt. Then the light stays on solid until the belt is buckled. This ...