2015 BUICK LACROSSE tow bar

Black plate (31,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-31
Driver Efficiency Gauge (eAssist
Only):Assists in driving efficiently
and will vary based on driver input.
To maximize efficiency, keep the
leaf in the solid green zone in the
center of the gauge. The gauge
moves down when braking and up
when accelerating. When either is
done aggressively, the vehicle is
being driven less efficiently and the
gauge will move further from the
center
Drive Cycle Summary (eAssist
Only): Displays the distance
traveled and the fuel economy for
that trip.
Top Consumers: Displays the top
four vehicle energy consumers,
along with their total fuel
consumption.
Economy Trend: Displays history
of the Average Fuel Economy from
the last 50 km (30 miles). Each bar
represents about 5 km (3 miles) of
driving. The fuel economy will range
from 0 –15 L/100 km (0 –50 mpg).
During driving the bars will shift to always reflect the most recent
distance on the right side. This
display cannot be reset.
ECO Index:
The bar graph on the
left hand side provides feedback on
the efficiency of current driving
behavior. The graph shows
a percentage value that is based on
current fuel consumption compared
to what is expected from the vehicle
with good and bad driving habits.
Each box represents 10%, with all
boxes filled being 100%. More
economical driving will result in
being in the ECO box.
Instantaneous Fuel Economy is also
shown on right hand side. This
display cannot be reset.
Head-Up Display (HUD)
{Warning
If the HUD image is too bright or
too high in your field of view, it
may take you more time to see
(Continued)
Warning (Continued)
things you need to see when it is
dark outside. Be sure to keep the
HUD image dim and placed low in
your field of view.
If equipped with HUD, some
information concerning the
operation of the vehicle is projected
onto the windshield. The information
is projected through the HUD lens
on the driver side of the instrument
panel and focused out toward the
front of the vehicle.
{Caution
If you try to use the HUD image
as a parking aid, you may
misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid.

Black plate (50,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
9-50 Driving and Operating
The vehicle may have instrument
cluster parking assist display with
bars that show“distance to object”
and object location information for
RPA. As the object gets closer,
more bars light up and the bars
change color from yellow to amber
to red.
When an object is first detected,
one beep will be heard from the
rear, or both sides of the Safety
Alert Seat will pulse two times.
When an object is very close
(<0.6 m (2 ft)), five beeps will sound,
or both sides of the Safety Alert
Seat will pulse five times.
Turning the Features On or Off
TheXbutton on the center stack
is used to turn on or off the Rear
Parking Assist. The indicator light
next to the button comes on when
the feature is on and turns off when
the feature has been disabled.
Turn off parking assist when towing
a trailer.
The parking assist symbols and
guidance lines can be turned on or
off through the Settings menu on
the infotainment system:
1. On the infotainment system, press the Settings screen
button, or turn the MENU knob
to highlight Settings and
press MENU.
2. Select Rear Camera. 3. Press Rear Park Assist Symbols
or Guidance Lines, and then
select OFF or ON.
Assistance Systems for
Driving
If equipped, when driving the
vehicle forward, Forward Collision
Alert (FCA), Lane Departure
Warning (LDW), Side Blind Zone
Alert (SBZA), Lane Change Alert
(LCA), and/or the Active Emergency
Braking System can help to avoid a
crash or reduce crash damage.
Forward Collision Alert
(FCA) System
The FCA system may help to avoid
or reduce the harm caused by
front-end crashes. FCA provides a
flashing red alert on the windshield,
and beeps or pulses the Safety Alert
Seat when approaching a vehicle
directly ahead too quickly. FCA also
provides a visual alert if following
another vehicle much too closely.

Black plate (56,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
9-56 Driving and Operating
Left Side MirrorDisplayRight Side Mirror Display
When the vehicle is started, both
outside mirror LCA displays will
briefly come on to indicate the
system is operating. When the
vehicle is moving forward, the left or
right side mirror display will light up
if a vehicle is detected in the next
lane over in that blind zone or
rapidly approaching that zone. If the
turn signal is activated in the same
direction as a detected vehicle, this
display will flash as an extra
warning not to change lanes.
LCA can be disabled through
vehicle personalization using the
Side Blind Zone Alert option. See
“Collision/Detection Systems” under
Vehicle Personalization on page 5-45. If LCA is disabled by the
driver, the LCA mirror displays will
not light up.
When the System Does Not
Seem to Work Properly
The LCA system requires some
driving for the system to calibrate to
maximum performance. This
calibration may occur more quickly if
the vehicle is driving on a straight
highway road with traffic and
roadside objects (e.g., guardrails,
barriers).
LCA displays may not come on
when passing a vehicle quickly or
when towing a trailer. The LCA
detection zones that extend back
from the side of the vehicle do not
move further back when a trailer is
towed. Use caution while changing
lanes when towing a trailer. LCA
may alert to objects attached to the
vehicle, such as a trailer, bicycle,
or object extending out to either side
of the vehicle. Attached objects may
also interfere with the detection ofvehicles. This is normal system
operation; the vehicle does not need
service.
LCA may not always alert the driver
to vehicles in the next lane over,
especially in wet conditions or when
driving on sharp curves. The system
does not need to be serviced. The
system may light up due to
guardrails, signs, trees, shrubs, and
other non-moving objects. This is
normal system operation; the
vehicle does not need service.
LCA may not operate when the LCA
sensors in the left or right corners of
the rear bumper are covered with
mud, dirt, snow, ice, or slush, or in
heavy rainstorms. For cleaning
instructions, see "Washing the
Vehicle" under
Exterior Care on
page 10-85. If the DIC still displays
the system unavailable message
after cleaning both sides of the
vehicle toward the rear corners of
the vehicle, see your dealer.