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:
Turn Signals When Towing a
Trailer
The arrows on the instrument panel
flash whenever signaling a turn or
lane change. Properly hooked up,
the trailer lamps also flash, telling
other drivers the vehicle is turning,
changing la ...
Other Information
The Bluetooth word mark and logos are owned by the Bluetooth® SIG, Inc. and
any use of such marks by General Motors is under license.
Other trademarks and trade names are those of their respective ...
Engine Coolant
The cooling system in the vehicle
for all engines and the intercooler is
filled with DEX-COOL®. This coolant
is designed to remain in the
vehicle for 5 years or 240 000 km
(150,000 mi), whic ...