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 
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Advisor can run a check.
See also:
Cargo Management System
To open the cargo management system, press the rear of the handle to unlatch
it and then lift the handle up.
A prop rod locks to hold the cover up when opened.
Four hooks are located on ...
Headlamp Washer
For vehicles with headlamp washers
they clear debris from the headlamp
lenses.
The headlamp washers are beneath
the headlamps.
Press the washer button at the end
of the windshield wiper le ...
Armrest Storage
For vehicle with an armrest/storage compartment located by the second row seat,
pull the loop at the top of the armrest out to lower the armrest.
Push the button on the front of the armrest and pul ...