Place a Call Using a Stored Number
1. Push
. System responds:
“OnStar ready.”.
2. Say “Call <name tag>.”.
System responds: “OK, calling <name tag>.”
See also:
Powertrains
Direct injection technology helps the Cadillac CTS offer more power while
maintaining fuel economy and lowering emissions. It delivers fuel more precisely
to increase the efficiency of combustion. ...
Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this,
notify General Motors.
Call 1-800-458-8006, or write:
Cadillac Customer Assistance Center
Cadillac Motor Car Divisio ...
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 v ...






