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:
Passlock®
Your vehicle has the Passlock® theft-deterrent
system.
Passlock® is a passive theft-deterrent system that
enables fuel if the ignition lock cylinder is turned
with a valid key. If a correct ke ...
Brake Adjustment
Every time you make a brake stop, your disc
brakes adjust for wear. ...
LaCrosse in the Market
The LaCrosse isn't a product of the yesteryear thinking that drove GM to
build a competitor to whatever Lincoln was building across town. That's the sort
of culture that got GM into trouble in the ...
