2020 GMC ACADIA windshield wipers

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
108 Instruments and Controls
INT :Move the windshield wiper
lever to INT. Turn the band up for
more frequent wipes or down for
less frequent wipes.
OFF : Use to turn the wipers off.
1X : For a single wipe, briefly move
the wiper lever down. For several
wipes, hold the wiper lever down.
f: Pull the windshield wiper
lever toward you to spray windshield
washer fluid and activate the
windshield wipers. The wipers will
continue until the lever is released
or the maximum wash time is
reached. When the windshield wiper
lever is released, additional wipes
may occur depending on how long
the windshield washer had been
activated. See Washer Fluid0281
for information on filling the
windshield washer fluid reservoir.
{Warning
In freezing weather, do not use
the washer until the windshield is
warmed. Otherwise the washer
fluid can form ice on the
windshield, blocking your vision.
{Warning
Before driving the vehicle, always
clear snow and ice from the hood,
windshield, roof, and rear of the
vehicle, including all lamps and
windows. Reduced visibility from
snow and ice buildup could lead
to a crash.
Clear snow and ice from the wiper
blades and windshield before using
them. If frozen to the windshield,
carefully loosen or thaw them.
Damaged blades should be
replaced. See Wiper Blade
Replacement 0285. Heavy snow or ice can overload the
wiper motor. See
Electrical System
Overload 0289.
Wiper Parking
If the ignition is turned off while the
wipers are on LO, HI, or INT, they
will immediately stop.
If the windshield wiper lever is then
moved to OFF before the driver
door is opened or within 10 minutes,
the wipers will restart and move to
the base of the windshield.
If the ignition is turned off while the
wipers are performing wipes due to
windshield washing, the wipers
continue to run until they reach the
base of the windshield.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Instruments and Controls 109
Rear Window Wiper/
Washer
The rear window wiper/washer
controls are on the end of the
windshield wiper lever.
Turn the controls to adjust the
setting.
OFF :Turns the wiper off.
INT : Turns on the rear wiper with a
delay between wipes.
ON : Turns on the rear wiper.
1:Push the windshield wiper
lever forward to spray washer fluid
on the rear window. The wipers will
clear the rear window and either stop or return to your preset speed.
For more washer cycles, press and
hold the lever.
The rear window wiper/washer will
not operate if the liftgate is open or
ajar. If the liftgate is opened while
the rear wiper is on, the wiper
returns to the parked position and
stops.
Rear Wiper Arm Assembly
Protection
When using an automatic car wash,
move the rear wiper control to OFF
to disable the rear wiper. In some
vehicles, if the transmission is in
N (Neutral) and the vehicle speed is
very slow, the rear wiper will
automatically park.
The wiper operations return to
normal when the transmission is no
longer in N (Neutral) or the vehicle
speed has increased.
Reverse Gear Wipes
If the rear wiper control is off, the
rear wiper will automatically operate
continuously when the vehicle is in
R (Reverse) and the frontwindshield wiper is performing low
or high speed wipes. If the rear
wiper control is off, the vehicle is in
R (Reverse), and the front
windshield wiper is performing
interval wipes, then the rear wiper
automatically performs interval
wipes.
This feature can be turned on or off.
See
Vehicle Personalization 0146.
The windshield washer reservoir is
used for the windshield and the rear
window. Check the fluid level in the
reservoir if either washer is not
working. See Washer Fluid 0281.
Rear Camera Washer
If equipped, push the windshield
wiper lever forward to spray washer
fluid on the rear camera lens. The

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
158 Lighting
.The parking brake is released or
the vehicle is not in P (Park).
When the DRL are on, the taillamps
and other lamps will not be on.
The DRL turn off when the
headlamps are turned to
Oor the
ignition is off. For vehicles first sold
in Canada, the DRL can only be
turned off when the vehicle is
parked.
Automatic Headlamp
System
When the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically.
There is a light sensor on top of the
instrument panel. Do not cover the
sensor.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately. If it
is light outside when the vehicle
leaves the garage, there is a slight
delay before the automatic
headlamp system changes to the
Daytime Running Lamps (DRL).
During that delay, the instrument
cluster may not be as bright as
usual. Make sure the instrument panel brightness control is in the full
bright position. See
Instrument
Panel Illumination Control 0160.
When it is bright enough outside,
the headlamps will turn off or may
change to DRL.
The automatic headlamp system
turns off when the exterior lamp
control is turned to
Oor the ignition
is off.
For vehicles sold in Canada, this
control only works when the
transmission is in P (Park).
Lights On with Wipers
If the windshield wipers are
activated in daylight with the engine
on, and the exterior lamp control is
in AUTO, the headlamps, parking
lamps, and other exterior lamps
come on. The transition time for the
lamps coming on varies based on
wiper speed. When the wipers are
not operating, these lamps turn off.
Move the exterior lamp control to
O
or;to disable this feature.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Vehicle Care 289
Electrical System
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance of circuit
overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by
electrical problems.
{Danger
Fuses and circuit breakers are
marked with their ampere rating.
Do not exceed the
specified amperage rating when
replacing fuses and circuit
breakers. Use of an oversized
fuse or circuit breaker can result
in a vehicle fire. You and others
could be seriously injured or
killed.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-13687875) - 2020 - CRC - 10/28/19
404 Index
When It Is Time for NewTires . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Where to Put the Restraint . . . . . . 83
Windows . . . . . . . . . . . . . . . . . . . . . . . . 36 Power . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Windshield Replacement . . . . . . . . . . . . . . . . . 286
Wiper/Washer . . . . . . . . . . . . . . . . 107
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 184
Winter Tires . . . . . . . . . . . . . . . . . . . . 299
Wiper Blade Replacement . . . . . . 285
Wipers
Rear Washer . . . . . . . . . . . . . . . . . 109
Wireless Charging . . . . . . . . . . . . . . 112