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:
Convex Mirrors
WARNING
A convex mirror can make things, like other vehicles, look farther away than
they really are. If you cut too sharply into the right lane, you could hit a vehicle
on the right. Check the ...
New Vehicle Break-In
Notice:
The vehicle does not
need an elaborate break-in. But it
will perform better in the long run
if you follow these guidelines:
• Do not drive at any one
constant speed, fast or slow, ...
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire
graded 150 ...