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284 SAFETY
ence and length of a trailer. The presence of a
trailer will be detected using the blind spot radar
within 90 seconds of forward movement of the
vehicle. The vehicle must be moving above
6
mph (10 km/h) to activate the feature. Once
the trailer has been detected, the system will
default to the maximum blind spot zone until the
length has been verified. You will see “Auto” in
the instrument panel cluster
.
Maximum Mode — When “Max Mode” is
selected, the system will default to the
maximum blind spot zone regardless of what
size trailer is attached
.
NOTE:
Selected setting is stored when the ignition is
pl
aced in the OFF position. To change this setting,
it must be selected through the Uconnect Settings
Ú page 229.
Trailer Length Detection
Once the trailer presence has been established,
t
h
e trailer length will be established (by making a
90 degree turn) and then the trailer length
category (e.g. 10-20
ft (3 m to 6 m)) will be
di
splayed. This can take up to 30 seconds after
completing the turn.
NOTE:
During the same ignition cycle, if the vehicle is at a
st
andstill for a minimum of 90 seconds, a new
“trailer detection request” is enabled by the
system once the vehicle resumes motion.
Maximum length supported by the Trailer Merge
As
sist feature is 39.5
ft (12 m). Trailer length is
c
on
sidered the forward most portion of the trailer
hitch to the rearward most portion of the body,
bumper, or ramp of the trailer.
Maximum width supported by the Trailer Merge
Assist feature is 8.5
ft (2.59 m). Trailer width is
m
e
asured at the widest portion of the trailer and
may include wheels, tires, finders, or rails.
NOTE:
Fifth wheel or gooseneck trailers are not supported
by
Trailer Merge Assist.
Trailer Length Detection
Trailer length will be identified and placed into one
of
the following categories:
Trailer length up to 10 ft (3 m) — Blind spot zone
will be adjusted to 10
ft (3 m) .
Trailer length between 10 ft to 20 ft (3 m to
6
m) — Blind spot zone will be adjusted to 20 ft
(
6
m) .
Trailer length between 20 ft to 30 ft (6 m to
9
m) — Blind spot zone will be adjusted to 30 ft
(
9
m) .
Trailer length between 30 ft and 39.5 ft (9 m to
12 m) — Blind spot zone will be adjusted to Max
di
stance .
NOTE:
Trailer length is determined within +/- 3 ft (1 m) of
ac
tual length. Trailers that are the same size as the
category limit, 10/20/30
ft (3/6/9 m), could be
subject to being placed in the category above or
below the correct one.
Trailer Merge Warning
Trailer Merge Warning is the extension of the blind
s
pot function to cover the length of the trailer, plus
a safety margin, to warn the driver when there is a
vehicle in the adjacent lane. The driver is alerted by
the illumination of the BSM Warning Light located
in the outside mirror on the side the other vehicle
is detected on. In addition, an audible (chime) alert
will be heard and radio volume reduced
Ú page 282.
1 — Trailer Length
2 — Trailer Hitch
3 — Trailer Width
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