Buick Envista 2025 - Battery Load Management; Battery Power Protection; Exit Lighting; Exterior Lighting Battery Saver

Buick Envista Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-18181221) - 2025
106 Lighting
Exit Lighting
S
ome exterior lamps and interior lamps turn on
when the driver door is opened after the vehicle
is turned off.
The exterior and interior lamps remain on
for aset amount of time, then automatically
turn off.
The interior lights turn on when the vehicle is
turned off.
The exterior lamps turn off immediately by
turning the exterior lamp control off.
This feature can be changed. On the
infotainment home screen, select Settings
>Vehicle >Lighting.
Battery Load Management
The vehicle has Electric Power Management
(EPM) that estimates the battery's
temperature and state of charge. It then adjusts
the voltage for best performance and extended
life of the battery.
When the battery's state of charge is low, the
voltage is raised slightly to quickly bring the
charge back up. When the state of charge is
high, the voltage is lowered slightly to prevent
overcharging. If the vehicle has avoltmeter
gauge or avoltage display on the Driver
I
nformation Center (DIC), you may see the
voltage move up or down. This is normal. If
there is aproblem, an alert will be displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true
for all vehicles. This is because the generator
(alternator) may not be spinning fast enough
at idle to produce all the power needed for very
high electrical loads.
A high electrical load occurs when several
of the following are on, such as: headlamps,
high beams, fog lamps, rear window defogger,
climate control fan at high speed, heated seats,
engine cooling fans, trailer loads, and loads
plugged into accessory power outlets.
EPM works to prevent excessive discharge of
the battery. It does this by balancing the
generator's output and the vehicle's electrical
needs. It can increase engine idle speed to
generate more power, whenever needed. It
can temporarily reduce the power demands of
some accessories.
Normally, these actions occur in steps or levels,
without being noticeable. In rare cases at the
highest levels of corrective action, this action
may be noticeable to the driver.
Battery Power Protection
T
his feature helps prevent the battery from
being drained, if the interior courtesy lamps or
reading lamps are accidentally left on. If any of
these lamps are left on, they automatically turn
off after 10 minutes, if the ignition is off. The
lamps will not come back on again until one of
the following occurs:
•
The ignition is turned on.
•
The doors are closed and then re-opened.
Exterior Lighting Battery Saver
The exterior lamps turn off about 10 minutes
after the vehicle is turned off, if the parking
lamps or headlamps have been manually left
on. This protects against draining the battery.
To restart the 10-minute timer, turn the exterior
lamp control to the O position and then back
to the ; or 2 position.
To keep the lamps on for more than 10 minutes,
the vehicle must be on or in accessory mode.