Tow/Haul Mode; All-Wheel Drive; System (Abs); Drive Systems - GMC ACADIA 2017 Owner's Manual

236 Driving and Operating
While in L (Low), the transmission
will prevent shifting to a lower gear
range if the engine speed is too
high. You have a brief period of time
to slow the vehicle. If vehicle speed
is not reduced within the time
allowed, the lower gear range shift
will not be completed. You must
further slow the vehicle, then press
(Minus) to the desired lower gear
range.
Automatic Engine Grade Braking is
not available when the ERS is
active. It is available in D (Drive) for
both normal driving and Tow/Haul
Mode. While using the ERS, cruise
control and the Tow/Haul Mode can
be used. See Tow/Haul Mode
following.

Tow/Haul Mode

See Driver Mode Control 0 242.

Drive Systems

All-Wheel Drive

Vehicles with this feature can
operate in AWD Mode, see Driver
Mode Control 0 242.
Brakes
Antilock Brake

System (ABS)

This vehicle has an Antilock Brake
System (ABS), an advanced
electronic braking system that helps
prevent a braking skid.
When the vehicle begins to drive
away, ABS checks itself.
A momentary motor or clicking noise
may be heard while this test is going
on, and it may even be noticed that
the brake pedal moves a little. This
is normal.
If there is a problem with ABS, this
warning light stays on. See Antilock
Brake System (ABS) Warning
Light 0 135.