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GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16417394) - 2023 - CRC - 5/16/22
Driving and Operating
219
Active Braking during lift throttle will be
engaged. This feature automatically applies
light braking to simulate heavy engine
braking of four-wheel-dive low. It also
applies light braking in D (Drive) until the
vehicle is at idle speeds. In L1 and L2 light
braking will typically bring the vehicle to a
stop. Active Braking during lift throttle also
reduces trailer braking.
Terrain Mode automatically exits to Normal
Mode if the brake temperatures become too
hot, electronic parking brake becomes
inoperable, or the vehicle cannot perform
braking or vehicle hold.
For more information on off-road driving,
see
and
.
Terrain Mode Drive
Select
Expected Vehicle Behavior
Ideal Terrain
Drive (L3-Lx)
Minor deceleration when off
throttle and mild ability to
modulate throttle; mimics
performance of 4
n
without torque
multiplication.
Grassy fields,
mild two tracks,
rutted roads,
large rolling hills
L2
Moderate deceleration when off
throttle and moderate ability to
modulate throttle; brings vehicle to
a stop in most cases.
Mild rock crawling,
heavy ruts,
short, steeper grades
L1
Significant deceleration when off
throttle and significant ability to
modulate throttle; brings vehicle to
a stop in most cases.
Rock crawling downhill
Vehicle Hold Features
.
When the vehicle comes to a stop on an
incline grade in forward gear or on a
decline grade in reverse gear, Vehicle
Hold is engaged until the accelerator
pedal is pressed.
.
When the vehicle is in forward gear on a
decline, the vehicle will creep down the
hill when the brake pedal is released
without pressing the accelerator pedal.
The vehicle will also creep forward on flat
ground.
.
If the driver seat belt is removed and the
driver door is opened while the vehicle is
being held, Electric Parking Brake (EPB) is
engaged.
.
EPB engages if the vehicle is held for an
extended period.