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:
Defensive Driving
Defensive driving means “always expect the unexpected.” The first step in driving defensively is to wear the safety belt. See Safety Belts on page 3‑15.
• Assume that other road users (pe ...
Trailer Brakes
Does the trailer have its own brakes? Be sure to read and follow the instructions
for the trailer brakes so they are installed, adjusted, and maintained properly.
Because the vehicle has antilock b ...
Door Locks
To lock or unlock the vehicle from the outside, press
or
on the Remote Keyless Entry (RKE) transmitter.
There is a power door lock switch on the instrument panel.
There are power door lock s ...