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 would wear one and a half (1½) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.
See also:
Onstar.com
The website provides access to
account information, manages the
OnStar subscription, and allows
viewing of videos of each service.
Get subscription plan pricing and
sign up for OnStar Vehicle ...
Online Owner Center
Manage your vehicle (U.S.) at cadillac.com. Click on “Owners,” then
“Manage my Cadillac/Owners Login.”
Information and services customized for your specific vehicle — all in one
convenient place. ...
How to Reinstall Engine Air
Cleaner/Filter
1. Install the air cleaner into the air
cleaner housing. The outer air
cleaner filter seal must be fitted
properly in the air cleaner
housing.
2. Align the air cleaner housing
cover tabs to ...