Cadillac XT4 Owner Manual (GMNA-Localizing-Europe-15440913) - 2022 -
CRC - 5/13/21
236 DRIVING AND OPERATING
vehicle in front of you, but will not
exceed the set speed. It may apply
limited braking, if necessary. When
braking is active, the brake lamps will
come on. The automatic braking may
feel or sound different than if the
brakes were applied manually. This is
normal.
Overtaking a Vehicle While
Using ACC
If the set speed is high enough, and
the left indicator is used to overtake a
vehicle ahead within the selected
interval, ACC may assist by gradually
accelerating the following vehicle prior
to the lane change.
{
Warning
When using ACC to overtake a
vehicle or change lane, the distance
to the vehicle ahead being
overtaken may be reduced. ACC
may not apply sufficient
acceleration or braking when
overtaking a vehicle or changing
lane. Always be ready to accelerate
or brake manually to finish
overtaking or changing lane.
Stationary or Very Slow-Moving
Objects
{
Warning
ACC may not detect and react to
stopped or slow-moving vehicles
ahead of you. For example, the
system may not brake for a vehicle
it has never detected moving. This
can occur in stop-and-go traffic or
when a vehicle suddenly appears
due to a vehicle ahead changing
lanes. Your vehicle may not stop
and could cause a crash. Use
caution when using ACC. Your
complete attention is always
required while driving and you
should be ready to take action and
apply the brakes.
Irregular Objects Affecting ACC
ACC may have difficulty detecting the
following objects:
.
Vehicles with cargo extending from
the rear.
.
Non-standard shaped vehicles, such
as vehicle transport, vehicles with a
side car fitted, or horse-drawn
carriages.
.
Objects that are close to the front of
your vehicle.
ACC Automatically Disengages
ACC may automatically disengage and
the driver will need to manually apply
the brakes to slow the vehicle when:
.
The sensors are blocked.
.
The Traction Control System (TCS)
or StabiliTrak/ESC system has
activated or been disabled.
.
There is a fault in the system.
.
The radar falsely reports blockage
when driving in a desert or remote
area with no other vehicles or
roadside objects. A DIC message
may display to indicate that ACC is
temporarily unavailable.
The ACC indicator will turn white
when ACC is no longer active.
In some cases, when ACC is
temporarily unavailable, regular cruise
control may be used. See “Switching
Between ACC and Regular Cruise