Cadillac 2004 CTS - Manual (Page 197)

Service Steering System
This symbol appears with
the Service Steering
System message.
Your vehicle may be equipped with a speed variable
assist steering system. See
Steering on page 4-11.
The Service Steering System message will be displayed
if a problem is detected with the speed variable assist
steering system. When this message is displayed,
you may notice that the effort required to steer the
vehicle increases or feels “heavier,” but you will still be
able to steer the vehicle.
Service Theft System
This symbol appears with
the Service Theft System
message.
This message means there is a problem with the
Immobilizer. See
Immobilizer on page 2-19 for more
information. A fault has been detected in the system
which means that the system is disabled and is
not protecting the vehicle. The vehicle usually restarts,
however, you may want to take your vehicle to your
dealer before turning off the engine.
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