Buick LaCrosse 2014 Owner's Manual page 325

If the vehicle fails to crank, it may
be jump started by using the eAssist
battery to charge the 12-volt battery.
Use the following procedure to
activate the on-board jump start
using the DIC controls.
The vehicle may be equipped with
an ignition key or an electronic
keyless ignition with pushbutton
start.
Place the ignition key in the ON/
RUN position and proceed as
follows:
1. Press then scroll
until the Settings menu displays.
2. Press to enter the
Settings menu.
3. Press then scroll
until Jump Start displays.
4. Press to activate the jump
start.
5. The system will then ask for
confirmation. If Yes is selected,
the jump start will begin and the
display will show WAIT TO
START.
6. When the jump start is complete,
the display will show ATTEMPT
START or JUMP START
DISABLED.
With the brake pedal not applied,
press and hold the ENGINE START/
STOP button for more than
five seconds. This will place the
or
vehicle in the Service Only Mode.
Proceed as follows:
1. Press
until the Settings menu displays.
or
2. Press
Settings menu.
3. Press
until Jump Start displays.
4. Press
start.
5. The system will then ask for
confirmation. If Yes is selected,
the jump start will begin and the
display will show WAIT TO
START.
then scroll or
to enter the
then scroll or
to activate the jump