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:
If Steam Is Coming from the
Engine Compartment
See Overheated Engine Protection
Operating Mode for
information on driving to a safe
place in an emergency. ...
The Inside
Where it counts, the Verano's interior feels plush — somewhere between a
compact and a luxury car, but closer to the latter. Similar money could get a
well-equipped Cruze or Mazda3. The Buick is ...
Engine Coolant Temperature Warning Light
For eAssist vehicles, this light
comes on briefly while starting the
vehicle.
If it does not, have the vehicle
serviced by the dealer. If the system
is working normally, the indicator
lig ...