Gasoline Specifications (U.S. and Canada Only)
At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB–3.5 or 3.511 in Canada.
Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT).
We recommend against the use of gasolines containing MMT.
See Fuel Additives for additional information.
See also:
IntelliBeam® Intelligent High-Beam Headlamp Control System
For vehicles with this feature, be sure to read this entire section before using
it.
IntelliBeam is an enhancement to the vehicle's headlamp system.
Using a digital light sensor on the rearvie ...
Manual Operation
(Power): Press to turn the climate control system on or off.
(Fan Control): Press to increase or decrease the fan speed. Pressing
either button cancels automatic operation and the system goes into ...
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 ...