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, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationInstallation Procedure
Create 6 x 20 mm (4/16 x 12/16 in) slots for MIG-brazing along the edges
of the rear inner wheelhouse as noted from the original
panel.
Note: If the location of the original plug weld holes can
not be determined, space the slots every 40 mm (1½ in).
Clean and prepare the ...
Battery
Refer to the replacement number on the original battery label when a new battery
is needed.
WARNING
Battery posts, terminals, and related accessories contain lead and lead compounds,
chemicals known to the State of California to cause cancer and reproductive harm.
Wash hands after handling.
...
Battery Voltage and Charging Messages
BATTERY SAVER ACTIVE
This message displays when the vehicle has detected that the battery voltage
is dropping beyond a reasonable point. The battery saver system starts reducing
features of the vehicle that may be noticed. At the point that features are disabled,
this message displays. Turn o ...