Driver Assistance Systems; Forward Collision Alert - GMC 2018 SIERRA DENALI Quick Reference Manual

DRIVER ASSISTANCE SYSTEMS

Safety Alert Seat
The driver's seat pulses — left side, right side, or simultaneously — to alert the driver of potential
hazards.
Audible notification may be selected instead of Safety Alert Seat pulsing notification. To
change the alert setting, go to Settings > Vehicle > Collision/Detection Systems > Alert Type.

Forward Collision Alert

The Vehicle Ahead indicator is green when a
vehicle is detected and is amber when following a
vehicle ahead much too closely. When approach-
ing a vehicle directly ahead too rapidly, a red alert
flashes on the windshield and the Safety Alert Seat
pulses or beeps sound (if selected).
Collision Alert button on the left
Press the
side of the steering wheel to set the alert timing
to Far, Medium, Near, or Off.
Low-Speed Forward Automatic Braking
The brakes may be applied automatically in potential collision situations to help reduce damage
or help avoid collisions with vehicles directly ahead.
To turn the system on or off, go to Settings > Vehicle > Collision/Detection Systems > Auto
Collision Preparation.
Lane Keep Assist with Lane Departure Warning
The system may help avoid collisions due to unintentional lane departures. The
Assist indicator is green if the system is available to assist. If the vehicle approaches a detected
lane marking without using a turn signal in that direction, the system may assist by gently turning
the steering wheel and displaying an amber
If active driver steering is not detected, the amber
pulse or beeps may sound (if selected) on the side of the departure direction as the lane marking
is crossed. In order to use this system safely, the driver needs to steer and be in complete control
of the vehicle.
Lane Keep Assist button on the center of the instrument panel to turn the
Press the
system on or off.
Lane Departure Warning
When crossing a detected lane marking without using a turn signal in that direction, the system
flashes an amber
sound (if selected) on the side of the lane departure direction.
Lane Departure Warning button on the center of the instrument panel to turn
Press the
the system on or off.
Rear Vision Camera
When the vehicle is in Reverse, a view of the area behind the vehicle displays on the infotainment
system. Vehicle speed must be below 5 mph.
To turn the Guidelines or Rear Park Assist Symbols on or off, go to Settings > Rear Camera.
16
Optional equipment
F
F
F
(HD Models Only)
F
indicator on the instrument cluster and the Safety Alert Seat pulses or beeps
(LD Models Only)
F
(LD Models Only)
F
.
may flash and the Safety Alert Seat may
Lane Keep