Drive Systems; All-Wheel Drive; Brakes; Antilock Brake - GMC Terrain Denali 2015 Owner's Manual

9-30 Driving and Operating
The gas pedal will be less
sensitive.
The vehicle's computer will more
aggressively shut off fuel to the
engine under deceleration.
The engine idle speed will be
lower.
Driving performance is more
conservative.
The climate controls may take
longer to heat or cool the cabin.
The rear defogger will stay on
for shorter periods of time.

Drive Systems

All-Wheel Drive

Vehicles with this feature transfer
engine power, as required, to all
four wheels. It is fully automatic, and
adjusts itself as needed for road
conditions.
When using a compact spare tire on
an AWD vehicle, the system
automatically detects the compact
spare and reduces AWD
performance to protect the system.
To restore full AWD operation and
prevent excessive wear on the
system, replace the compact spare
with a full-size tire as soon as
possible. See Compact Spare Tire
on page 10-66.

Brakes

Antilock Brake

System (ABS)

This vehicle has 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
might be heard while this test is
going on, and it might 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
on page 5-15.