See also:

Different Size Tires and Wheels
If wheels or tires are installed that are a different size than the original equipment wheels and tires, vehicle performance, including its braking, ride and handling characteristics, stability, and r ...

Tires
Every new GM vehicle has high-quality tires made by a leading tire manufacturer. See the warranty manual for information regarding the tire warranty and where to get service. For additional informatio ...

Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). For eAssist vehicles, when the ignition is in ON/RUN, the tachometer indicates the vehicle status. When pointing to ...