Automatic Emergency Braking; Lane Departure Warning - GMC SIERRA 2500 HEAVY DUTY 2023 Owner's Manual

DRIVER ASSISTANCE SYSTEMS
Safety or driver assistance features are not a substitute for the driver's responsibility to operate
the vehicle in a safe manner. The driver should remain attentive to traffic, surroundings and
road conditions at all times. Read your Owner's Manual for important feature limitations and
information.
SAFETY ALERT SEAT
— to alert the driver of the direction of potential hazards.
Audible alerts or seat-pulsing alerts may be selected. To change the alert settings,
go to Settings > Vehicle > Collision/Detection Systems > Alert Type.
FORWARD COLLISION ALERT
that you're following is detected ahead and is amber when following a vehicle ahead
much too closely. When approaching a detected vehicle directly ahead too rapidly,
a red alert flashes on the windshield and the Safety Alert Seat pulses or rapid beeps
sound (if selected).
Press the Forward Collision Alert button on the steering wheel to set the alert
timing to Far, Medium, or Near.
FOLLOWING DISTANCE INDICATOR
following distance to the vehicle ahead is
indicated in seconds under the Info menu
on the Driver Information Center. If no
vehicle is detected ahead, dashes are
displayed.

AUTOMATIC EMERGENCY BRAKING

speeds below 50 mph, the system works
with Forward Collision Alert to help you
avoid or reduce the severity of a front-end collision with a vehicle you're following.
Camera technology is used to automatically provide hard emergency braking or
enhance the driver's hard braking.
To set Automatic Emergency Braking and Forward Collision Alert to Alert and Brake,
Alert, or Off, go to Settings > Vehicle > Collision/Detection Systems > Forward
Collision System
LANE CHANGE ALERT WITH SIDE BLIND ZONE ALERT
displays a warning symbol on the left- or right-side mirror when a moving vehicle is
detected rapidly approaching or is in that side blind zone. The warning symbol flashes if
a turn signal is activated when a vehicle has been detected on the same side.
To turn on or off, go to Settings > Vehicle > Collision/Detection Systems > Lane
Change Alert.

LANE DEPARTURE WARNING

a turn signal in that direction, the system flashes an amber indicator on the instrument
cluster and the Safety Alert Seat pulses or beeps sound (if selected) on the side of the
lane departure direction.
To turn on or off, press the
instrument panel.
14
Optional equipment
F
– The driver's seat pulses — left side, right side or simultaneously
– The
– The
– At
– When crossing a detected lane marking without using
Lane Departure Warning button on the center of the
F
Vehicle Ahead Indicator is green when a vehicle
– While driving, the system
See Driving and Operating in your Owner's Manual.
Some equipment shown may not be included in your vehicle.