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 the vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push 
, and an Advisor can run a check.
See also:
Reprogramming a Single Universal Remote Button
To reprogram any of the three Universal Remote buttons, repeat the programming instructions earlier in this section, beginning with Step 2.
For help or information on the Universal Home Remote System ...
Under the Hood
General Motors offers a selection of five engines to accommodate a variety of
cargo- and passenger-hauling requirements. Choices begin with a 200-horsepower,
4.3-liter V-6 for the G1500 van. Depen ...
Maintenance When Trailer Towing
The vehicle needs service more often when pulling a trailer. See this manual's
Maintenance Schedule or Index for more information. Things that are especially important
in trailer operation are ...