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:
Power Steering Fluid (3.0L V6 Engine)
The power steering fluid reservoir is located toward the rear of the engine compartment
on the passenger side of the vehicle. See Engine Compartment Overview on page 10‑6
for reservoir loc ...
Programming the Power Windows
If the battery on the vehicle has been recharged, disconnected, or replaced, windows with the express-up feature need to be reprogrammed for this feature to work. To program the window:
1. Close all ...
Under the Hood
The Savana can be equipped with one of four engines: a 195-horsepower,
4.3-liter V-6; a 285-hp, 4.8-liter V-8; a 295-hp, 5.3-liter V-8; or a 300-hp,
6.0-liter V-8. Each engine teams with a four-sp ...