See also:

Manual Transmission
Skip Shift (CTS–V) Under light acceleration, the transmission will only allow shifting from 1 (First) to 4 (Fourth). This helps improve fuel mileage. Under harder acceleration, Skip Shift is ...

How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. Always reset the engine oil life to 100% after every oil change. It will not reset ...

Place a Call Using a Stored Number
1. Push . System responds: “OnStar ready.”. 2. Say “Call <name tag>.”. System responds: “OK, calling <name tag>.” ...