2014 BUICK LACROSSE battery

5
Keyless Access SystemF
The Keyless Access System enables operation of the doors and ignition wi\
thout removing
the key fob from a pocket or purse. The key fob must be within three fee\
t of the door being
unlocked or the trunk.
Keyless Unlocking
With the key fob within range:
Press the lock sensor on the driver’s door
handle to unlock the driver’s door; press it
again within five seconds to unlock all
doors.
Press the lock sensor on a passenger
door handle to unlock all doors.
Press the touchpad above the license
plate to open the trunk.
Keyless Locking
With the ignition off, the key fob out of the vehicle, and all doors closed:
Press the lock sensor on any door handle to lock all doors immediately.
If passive locking is turned on, all doors will lock automatically after a short delay once
all doors are closed.
Note: To change the door lock and unlock settings, go to Remote Lock, Unlock, \
Start in the Vehicle
Settings menu.
See Keys, Doors and Windows in your Owner Manual.
Keyless Access StartF
With the vehicle in Park or Neutral, press
the brake pedal and then press and hold
the ENGINE START/STOP button to start
the engine.
Note: The key fob must be in the vehicle to turn on
the ignition. If the key fob battery is weak, place the
key fob in the pocket in the center console storage
compartment to enable the engine to start. Replace
the key fob battery as soon as possible.
Stopping the Engine
Shift to Park and press the ENGINE
START/STOP button to turn off the engine.
Accessory
With the engine off and the brake pedal not applied, press the ENGINE START/STOP
button to place the ignition system in the accessory position.
See Driving and Operating in your Owner Manual.
F Optional equipment

18
eAssist Overview (if equipped)
A compact electric assist system called eAssist has been integrated with the highly efficient
2.4-liter four-cylinder engine and six-speed automatic transmission to provide an electric
“boost” to help conserve fuel. eAssist includes a small, but powerful, electric motor rated at
15 kilowatts. It replaces the typical alternator found on most engines. \
eAssist also uses a
small, advanced 115-volt lithium-ion battery located in the trunk.
eAssist Features
Auto Start/Stop
While driving, when the brake is applied and the vehicle comes to a complete stop, the
automatic engine start/stop system may turn off the engine, referred to \
as an Auto Stop. In
Auto Stop mode, the tachometer gauge will read AUTO STOP. The audio syst\
em, climate
controls and other accessories will be powered by the high-voltage battery. The engine will
restart immediately when the brake pedal is released or the accelerator pedal is applied.
After parking the vehicle and turning off the engine, the tachometer gauge will read OFF.
There are several conditions that may cause the engine to remain running or restart when
the vehicle is stopped.
• The engine, transmission or high-voltage battery is not at the required operating
temperature.
• The outside temperature is less than –4º F (–20º C).
• The shift lever is in any gear other than Drive (D).
• The high-voltage battery state of charge is low. It will automatically recharge as the
vehicle is driven.
• The climate control system requires the engine to run based on the climate control or
defog setting. Using the eco Air Conditioning mode will result in more f\
requent and
longer Auto Stops than the Comfort Air Conditioning mode.
• The Auto Stop time is greater than two minutes.
See Driving and Operating in your Owner Manual.
Power Flow Display
The Power Flow display, located on the infotainment system touch screen, indicates the
current eAssist operating mode, energy flow direction and the high voltage battery charge
level. The operating modes include Engine Idle, Auto Stop, Engine Power,\
Hybrid Power,
and Regen Recovery.
See Instruments and Controls in your Owner Manual.

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eAssist Features
Driver Efficiency Gauge
The driver efficiency gauge assists you in driving efficiently. To maximize efficiency, attempt
to keep the pointer in the solid green zone in the middle of the gauge. \
The gauge moves
down when braking and up when accelerating or driving at high speeds. Wh\
en driving
aggressively, it is less efficient and the gauge will move farther away from center. The
eAssist system’s ability to capture energy while the vehicle is slowi\
ng down makes deceler-
ating important for vehicle efficiency.
See Instruments and Controls in your Owner Manual.
Climate Control Settings
Select the eco Air Conditioning setting (green A/C indicator) for maximum efficiency. This
setting will maximize the frequency and duration of Auto Stops while still providing cabin
comfort when the vehicle is in an Auto Stop. To further maximize efficiency, operate the
climate controls in the Automatic mode at the highest comfortable temper\
ature setting or
turn off the air conditioning system when climate conditions allow.
Select the comfort Air Conditioning setting (amber A/C indicator) for maximum cabin
comfort. Auto Stops will be reduced in both frequency and duration.
See Climate Controls in your Owner Manual.
Regenerative Braking
When braking or coasting, the electric motor acts like a generator to ch\
arge the high-
voltage battery. This “regenerative braking” process captures kine\
tic energy that would
otherwise be lost and stores it in the high-voltage battery. This electrical energy can then
be reused.
Note: Capturing kinetic energy causes transmission shifts that have more feel \
when braking or coasting.
See In Brief in your Owner Manual.
Next Generation Transmission
The eAssist system employs a next generation six-speed transmission with sophisticated
algorithms that continuously store information about your driving style, such as acceleration
and braking. Over the first 250–400 miles, some transmission shifts may be more notice-
able. As the vehicle is driven in a variety of city and highway driving conditions, eAssist w\
ill
use its onboard processing power to quickly “learn” your driving habits to deliver a seam-
less driving experience.
See Driving and Operating in your Owner Manual.
Hill Start Assist
After stopping on an incline, the Hill Start Assist feature momentarily holds the vehicle
when the brake pedal is released. The driver-applied brake pressure is used during the
stop to keep the vehicle from rolling during the period between when the\
brake pedal is
released and the accelerator pedal is applied.
See Driving and Operating in your Owner Manual.