OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check
the engine, transmission, antilock brakes, and other major vehicle systems. It also
checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring
System. If an On-Demand Diagnostics check is needed, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationEngine Oil
To ensure proper engine performance and long life, careful attention must be
paid to engine oil.
Following these simple, but important steps will help protect your investment:
Always use engine oil approved to the proper specification and of the proper
viscosity grade. See “Selecting the R ...
Older Children
Older children who have outgrown booster seats should wear the vehicle safety
belts.
The manufacturer instructions that come with the booster seat state the weight
and height limitations for that booster. Use a booster seat with a lap-shoulder
belt until the child passes the fit test belo ...
Passenger Sensing System
United States
Canada
The passenger sensing system turns off the front outboard passenger frontal airbag
and knee airbag under certain conditions. No other airbag is affected by the passenger
sensing system. See Passenger Sensing System on page 3-25 for important information.
The passe ...