Reactivation for Subsequent Owners
Push 
and follow the prompts to
speak to an Advisor as soon as
possible after acquiring the vehicle.
The Advisor will update vehicle records and will explain the OnStar service offers and options available.
See also:
First Engine Oil Change After Every
160 000 km/100,000 Miles
• Automatic transmission fluid change (normal
service). See Automatic Transmission Fluid .
• Spark plug replacement. An Emission Control
Service. ...
Services Specific to Canadian
Purchased Vehicles
• Fuel delivery: Reimbursement is approximately
$5 Canadian. Diesel fuel delivery may be restricted.
Propane and other fuels are not provided through
this service.
• Lock-Out Service: Vehicl ...
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 w ...