Full Speed Fwd Collision Warn light

[CaseOfAle]

There's a light on the lower left of the dash that I've manage to decode to apply to the collision warning system. It seems that if the light is on, the system is disabled - but I can't find anything good discussing the feature online or in the manual.

on my build sheet, there's a line item for "Full Speed Fwd Collision Warn Plus". what is it, how is it used and what is the light on the dash perpetually on for?

Here's one article on it - https://blog.cardash.com/forward-collision-warning-jeep-test-98a5d1445c41

Sponsored

 

[JLAero]

Take a look at page 93 of the 2019 User Guide for a pretty comprehensive description of the system. We bought our 2019 Sahara on Friday and I noticed the FCW Off light in the lower left on Monday. Went into the settings and turned it on, which turned that light off. It’s worth noting that I don’t remember seeing that warning light the first three days of ownership, nor do I recall turning the FCW system off.

 

[CaseOfAle]

Take a look at page 93 of the 2019 User Guide for a pretty comprehensive description of the system. We bought our 2019 Sahara on Friday and I noticed the FCW Off light in the lower left on Monday. Went into the settings and turned it on, which turned that light off. It’s worth noting that I don’t remember seeing that warning light the first three days of ownership, nor do I recall turning the FCW system off.

Thanks - I'll have a look if I can ever manage to find a manual.

 

[CaseOfAle]

User Guide =/= Owners Manual! Thanks @JLAero User Guide came with the vehicle, and is also available here

Or you can DL via the CMD prompt with this code "curl -o 2019JLUserGuide.pdf https://msmownerassets.z13.web.core...blications/en-us/Jeep/2019/Wrangler/10386.pdf" which will DL and name the file "2019JLUserGuide.pdf" but you can change that to whatever you want. In fact, if you play with the cmd code, you can increment the integer number of the pdf and see what you can find


Forward CollisionWarning (FCW)With
Mitigation — If Equipped

The Forward Collision Warning (FCW) system
with mitigation provides the driver with audible
warnings, visual warnings (within the
instrument cluster display), and may apply a
brake jerk to warn the driver when it detects a
potential frontal collision. The warnings and
limited braking are intended to provide the
driver with enough time to react, avoid or
mitigate the potential collision.
NOTE:
FCW monitors the information from the forward
looking sensors as well as the Electronic
Brake Controller (EBC), to calculate the probability
of a forward collision. When the system
determines that a forward collision is
probable, the driver will be provided with
audible and visual warnings as well as a
possible brake jerk warning.
If the driver does not take action based upon
these progressive warnings, then the system
will provide a limited level of active braking to
help slow the vehicle and mitigate the potential
forward collision. If the driver reacts to
the warnings by braking and the system determines
that the driver intends to avoid the
collision by braking but has not applied sufficient
brake force, the system will compensate
and provide additional brake force as
required.
If a FCW with Mitigation event begins at a
speed below 32 mph (52 km/h), the system
may provide the maximum braking possible
to mitigate the potential forward collision. If
the Forward Collision Warning with Mitigation
event stops the vehicle completely, the
system will hold the vehicle at standstill for
two seconds and then release the brakes.
When the system determines a collision with
the vehicle in front of you is no longer probable,
the warning message will be deactivated.
NOTE:
• The minimum speed for FCW activation is
3 mph (5 km/h).
• The FCW alerts may be triggered on objects
other than vehicles such as guard rails or
sign posts based on the course prediction.
This is expected and is a part of normal
FCW activation and functionality.
• It is unsafe to test the FCW system. To
prevent such misuse of the system, after
four Active Braking events within a key
cycle, the Active Braking portion of FCW
will be deactivated until the next key cycle.
• The FCW system is intended for on-road
use only. If the vehicle is taken off-road, the
FCW system should be deactivated to prevent
unnecessary warnings to the
surroundings.

FCW Braking Status And Sensitivity
The FCW Sensitivity and Active Braking status
are programmable through the Uconnect
System. Refer to “Uconnect Settings” in
“Multimedia” in the Owner’s Manual for further
information.
The default sensitivity of FCW is the “Medium”
setting and the system status is
“Warning & Braking”. This allows the system
to warn the driver of a possible collision with
the vehicle in front using audible/visual warnings
and it applies autonomous braking.
Changing the FCW status to “Far” setting
allows the system to warn the driver of a
possible collision with the vehicle in front
using audible/visual warning when the latter
is at a farther distance than "Medium" setting.
This provides the most reaction time to
avoid a possible collision.
Changing the FCW status to the “Near” setting,
allows the system to warn the driver of a
possible collision with the vehicle in front
when the distance between the vehicle in the
front is much closer. This setting provides
less reaction time than the “Far” and “Medium”
settings, which allows for a more dynamic
driving experience.
NOTE:
• Changing the FCW status to “Only Warning”
prevents the system from providing
limited active braking, or additional brake
support if the driver is not braking adequately
in the event of a potential frontal
collision, but maintains the audible and
visual warnings.
• Changing the FCW status to “Off” prevents
the system from providing autonomous
braking, or additional brake support if the
driver is not braking adequately in the event
of a potential frontal collision.
• The system will retain the last setting selected
by the driver after ignition shut
down.
• FCW may not react to irrelevant objects
such as overhead objects, ground reflections,
objects not in the path of the vehicle,
stationary objects that are far away, oncoming
traffic, or leading vehicles with the
same or higher rate of speed.
• FCW will be disabled like ACC, with the
unavailable screens.
FCW Limited Warning
If the instrument cluster displays “ACC/FCW
Limited Functionality” or “ACC/FCW Limited
Functionality Clean Front Windshield” momentarily,
there may be a condition that limits
FCW functionality. Although the vehicle is
still drivable under normal conditions, the
active braking may not be fully available.
Once the condition that limited the system
performance is no longer present, the system
will return to its full performance state. If the
problem persists, see an authorized dealer.
Service FCW Warning
If the system turns off, and the instrument
cluster displays:
• ACC/FCW Unavailable Service Required
• Cruise/FCW Unavailable Service Required
This indicates there is an internal system
fault. Although the vehicle is still drivable
under normal conditions, have the system
checked by an authorized dealer.
FCW Sensor Protective Cover
Your vehicle is equipped with a protective
cover that is to be used whenever the windshield
is folded down in order to protect the
FCW sensor. To install the cover, follow the
instructions below.
1. Secure the top part of the cover so that it
hinges to the header.
2. Swing the cover down and push on it so
that it covers the opening.
3. Check to make sure the cover is secured
properly.
NOTE:
Be sure to remove the cover before returning
the windshield to the normal position. Store
the cover in the cargo area.
Cleaning Instructions
During windshield down applications, dust/
dirt can accumulate in the cover and block
the camera lens. Use a microfiber cloth to
clean the camera lens, module, and inside
cover, being careful not to damage or scratch
the module.

 

[CaseOfAle]

*sigh*

Refer to “Uconnect Settings” in “Multimedia” in the Owner’s Manual for further information.

Turns out I was here a few days ago which led me to the quest to find the Owners Manual....

Sponsored