Footnotes — Maintenance Schedule Additional Required Services — Severe
a) Vehicles with different size front and rear tires do not have tire rotation. See Tire Rotation.
b) Or every two years, whichever comes first.
c) Check all fuel and vapor lines and hoses for proper hook–up, routing, and condition. Check that the purge valve, if the vehicle has one, works properly. Replace as needed.
d) Or every four years, whichever comes first.
e) Do not directly power wash the transfer case output seals. High pressure water can overcome the seals and contaminate the transfer case fluid. Contaminated fluid will decrease the life of the transfer case and should be replaced.
f) Or every five years, whichever comes first. See Cooling System.
g) Or every 10 years, whichever comes first. Inspect for fraying, excessive cracking, or damage; replace, if needed.
h) Inspect for fraying, excessive cracking, or damage; replace, if needed.
See also:
Leaving the Vehicle With
the Engine Running
(Automatic Transmission)
WARNING!
It can be dangerous to leave the
vehicle with the engine running.
The vehicle could move suddenly
if the shift lever is not fully in
P (Park) with the parking brake
firmly set. And, ...
Antilock Brake System (ABS) Warning Light
For vehicles with the Antilock Brake System (ABS), this light comes on briefly
when the engine is started.
If it does not, have the vehicle serviced by your dealer. If the system is working
nor ...
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some of
the OnStar services, like Remote
Door Unlock and Stolen Vehicle
Assistance. You will be prompted
to change the PIN the first time
when speaking with an Advi ...






