GMC Yukon 2025 - Page 275

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-17942154) - 2025
274 Driving and Operating
When t
he vehicle is started, both outside mirror
L
CA/TSBZA displays will briefly come on to
indicate the system is operating. When the
vehicle is in a forward gear, the left- or right-side
mirror display will light up if amoving vehicle
is detected in that blind zone. If the turn
signal is activated in the same direction as
adetected vehicle, this display will flash as an
extra warning not to change lanes.
LCA/TSBZA displays may not come on when
passing avehicle quickly, or when passing
astopped vehicle. LCA/TSBZA may alert to
objects attached to the vehicle, such as
a bicycle, or object extending out to either side
of the vehicle or trailer. This is normal system
operation; the vehicle does not need service.
LCA/TSBZA can be disabled through vehicle
settings. To view available settings from the
infotainment screen, touch Settings >Vehicle
>Collision/Detection Systems. If SBZA is
disabled by the driver, the TSBZA mirror
displays will not light up.
When the System Does Not Seem to
Work Properly
LCA/TSBZA displays may not come on when
passing avehicle quickly, or when passing
astopped vehicle. The LCA/TSBZA detection
zones that extend back from the side of the
ve
hicle do not move further back when a trailer
is towed. Use caution while changing lanes
when towing atrailer. LCA/TSBZA may alert to
objects attached to the vehicle, such as a trailer,
bicycle, or object extending out to either side
of the vehicle or trailer. This is normal system
operation; the vehicle does not need service.
LCA/TSBZA may not always alert the driver
to vehicles in the side blind zone, especially
in wet conditions. The system does not need
to be serviced. The system may light up due
to guardrails, signs, trees, shrubs, and other
non-moving objects. This is normal system
operation; the vehicle does not need service.
LCA/TSBZA may not operate when the LCA/
TSBZA sensors in the left or right corners of
the rear bumper are covered with mud, dirt,
snow, ice, or slush, or in heavy rainstorms.
For cleaning instructions, see "Washing the
Vehicle" under Exterior Care 3388. If the DIC
displays the system unavailable message after
cleaning both sides of the vehicle toward the
rear corners of the vehicle, see your dealer.
If the DIC displays the system unavailable
message after cleaning both sides of the vehicle
toward the rear corners of the vehicle, see
your dealer
If the LCA/TSBZA displays do not light up when
v
ehicles are in the blind zone and the system is
clean, the system may need service. Take the
vehicle to your dealer.
When TSBZA is disabled for any reason other
than the driver turning it off, the Trailer Side
Blind Zone Alert On option will not be available
on the personalization menu.
Driving with aTrailer
Although this system is intended to help
drivers avoid lane change crashes, it does not
replace driver vision and therefore should be
considered alane change aid. Even with the
TSBZA system, the driver must check carefully
for objects outside of the reporting zone (e.g.,
a fast approaching vehicle) or vehicle along the
side of the trailer before changing lanes.
Use caution while changing lanes when towing
atrailer.