Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 5/15/20
344
DRIVING AND OPERATING
When a trailer is connected and the
ignition is off, the Trailering App
System will periodically pulse the
lighting circuits of the trailer to verify
it is still connected. The trailer lights
may periodically flash as a result of
this trailer connection detection.
These flashes may be more visible in
dark ambient light environments. The
flashing or flickering lights are a
normal condition and the Trailering
App System has built-in protections to
prevent the battery from draining.
When Theft Alert is also enabled the
frequency and pattern of this flashing
will change.
Connection Problem
If any of the trailer connections are
lost, a message about the connection
issue will appear on the Driver
Information Center (DIC). The
infotainment display will also show
the connection issue in the
Connection Status view.
If a trailer connection is not detected,
the Trailering App will not display the
Connection Status screen.
Connection Trailer Lighting Faults
Detected
The Trailering App System monitors
for electrical faults on the trailer
lights. A message about the lighting
issue will appear on the DIC. The
infotainment display will also show
the lighting issue in the Connection
Status view. Repair your trailer lights
if needed. A trailer lighting issue is
not covered by your GM warranty.
Diagnose View
Touch Diagnose to see more
information about the connection
problem.
This view will display the names of
the trailer connector pins, a graphic of
the trailer connector, and a graphic of
the back of the trailer.
Any connector pin that failed will be
amber color, and the location of the
corresponding connection will be
highlighted on the graphic of the back
of the trailer.
The Running Lights connection may
not detect partial outages. Activate
the light test to check all trailer
lamps. See
“
Light Test
”
following.
Light Test
Touch Start Light Test to cycle the
trailer lights on and off to determine if
they are working. The test follows this
sequence:
1. The running lights turn on first
and remain on throughout the
sequence.
2. The brake lights turn on for about
two seconds.
3. The left turn signal light flashes
three times.
4. The right turn signal light flashes
three times.
5. The reverse lights turn on for about
two seconds.
6. Steps 2
–
5 repeat for approximately
one minute and 45 seconds,
or until the test deactivates.
Touch Stop to stop the test. The test
will automatically end after
one minute and 45 seconds.
The sequence also deactivates when
any of the following occur:
.
The ignition is turned off.
.
The transmission is shifted out of
P (Park).
