Service Only Mode
This power mode is available for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp as may be required for emission inspection purposes. With the vehicle off, and the brake pedal not applied, pressing and holding the button for more than five seconds will place the vehicle in Service Only Mode. The instruments and audio systems will operate as they do in ON/RUN, but the vehicle will not be able to be driven. The engine will not start in Service Only Mode. Push the button again to turn the vehicle off.
See also:
Transportation Options
Warranty service can generally be
completed while you wait. However,
if you are unable to wait, GM helps
to minimize inconvenience by
providing several transportation
options. Depending on t ...
Instrument Panel
Instrument Panel
A. Outlet Adjustment.
B. DIC Operation and Displays (If Equipped).
C. Turn Signal/Multifunction Lever.
D. Instrument Panel Cluster.
E. Hazard Warning Flashers.
F. Audio Syst ...
Hill Start Assist (HSA)
Some vehicles have a Hill Start Assist (HSA) feature, which may be useful when
the vehicle is stopped on a grade. This feature is designed to prevent the vehicle
from rolling, either forward or re ...