Reverse Automatic Braking (Rab) - GMC Yukon 2023 Owner's Manual

How to Cancel Automatic Parking or
Automatic Unparking
To cancel automatic parking or automatic
unparking at any time, press
the infotainment display and be prepared to
resume control of the vehicle. APA holds the
vehicle until the parking brake or brake is
applied, or the vehicle is shifted into
P (Park). To start driving away, press the
brakes and shift into D (Drive).
Certain vehicle conditions and driver
interferences may also cancel automatic
parking:
The driver manually steers the vehicle.
The maximum allowed speed is exceeded.
There is a failure with the APA system.
Electronic stability control or antilock
brakes are activated.
The parking brake is applied or vehicle is
shifted into Park (P).
Driver unbuckles seat belt and
opens door.
System Limitations
Automatic Parking Assist has certain
limitations. The system cannot:
Maneuver the vehicle at speeds exceeding
5 km/h (3 mph).
Maneuver the vehicle on a steep hill.
Detect whether a parking space is legal or
restricted.
or "X" on
Detect pavement markings or lines
Park the vehicle closely lined up with the
vehicle next to it, particularly if the spot
is approached at an angle or if the
parking space is angled.
Park exactly centered in a very large spot.
Always detect short curbs.
Operate while towing any trailer.
Function the vehicle is raised or lowered
by air suspension (if equipped).
Detect or automatically react to
approaching traffic when exiting a
parallel spot
Driving and Operating
When the System Does Not Seem to Work
Properly
If the vehicle does not reverse into the
expected parking space, the system could be
maneuvering the vehicle into a previously
detected space.

Reverse Automatic Braking (RAB)

Backing Warning and Reverse Automatic
Braking (RAB)
If equipped, vehicles with Adaptive Cruise
Control (ACC) have the Backing Warning
System and Reverse Automatic Braking (RAB)
system. When in R (Reverse), Backing
Warning alerts of rear objects at vehicle
speeds greater than 8 km/h (5 mph), and
RAB may automatically brake hard at speeds
between 1 32 km/h (0.5 20 mph).
The Backing Warning System will beep once
from the rear when an object is first
detected, or pulse twice on both sides of the
Safety Alert Seat. When the system detects
a potential crash, beeps will be heard from
the rear, or five pulses will be felt on both
sides of the Safety Alert Seat. There may
also be a brief, sharp application of the
brakes.
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