GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-18552429) - 2025
180 Driving and Operating
Driver Mode Control Switch
Mode Activation
Press the mode switch to the left of the
steering wheel on the instrument panel to
make amode selection.
Mode Descriptions
Normal Mode: Use for normal city and
highway driving to provide asmooth ride.
This setting provides balance between comfort
and handling.
Snow/Ice Mode: Snow/Ice mode improves
vehicle acceleration on snow covered roads.
When active, Snow/Ice mode adjusts pedal
tuning to optimize traction on slippery
su
rfaces. This can affect the acceleration on
dry asphalt.
Off-Road Mode: Use this mode for off-
road recreational driving. Off-Road mode
should be used to improve driving at
moderate speeds, on grass, gravel, dirt,
unpaved roads, or snow-covered roads. The
accelerator pedal is tuned for off-road use.
This mode automatically switches to All-Wheel
Drive (AWD) and modifies Antilock Brake
System (ABS), StabiliTrak/Electronic Stability
Control (ESC), and Traction Control System
(TCS) Performance.
Automatic Engine Grade Braking
Automatic Engine Grade Braking assists when
driving downhill. It maintains vehicle speed
by automatically implementing a shift pattern
that uses the engine and transmission to slow
the vehicle. The system will automatically
command downshifts to reduce vehicle speed.
The normal shift pattern will return once
the vehicle is on alow grade or when the
accelerator pedal is pressed.
While in the Electronic Range Select mode,
gr
ade braking is deactivated, allowing the
driver to select a range and limiting the highest
gear available. Grade braking is available for
normal driving and in Tow/Haul mode.
AWD Mode: AWD mode provides drive torque
to all four wheels. Select AWD to improve
traction and control on slippery road surfaces,
such as gravel, sand, wet pavement, snow,
and ice.