brake sensor RAM 1500 2022 User Guide

SAFETY319
Rain Brake Support (RBS)
RBS may improve braking performance in wet
conditions. It will periodically apply a small amount
of brake pressure to remove any water buildup on
the front brake rotors. It functions when the
windshield wipers are in LO or HI speed. When Rain
Brake Support is active, there is no notification to
the driver and no driver interaction is required.
Ready Alert Braking (RAB)
RAB may reduce the time required to reach full
braking during emergency braking situations. It
anticipates when an emergency braking situation
may occur by monitoring how fast the throttle is
released by the driver. The Electronic Brake
Control system will prepare the brake system for a
panic stop.
Traction Control System (TCS)
The TCS monitors the amount of wheel spin of
each of the driven wheels. If wheel spin is
detected, the TCS may apply brake pressure to the
spinning wheel(s) and/or reduce engine power to
provide enhanced acceleration and stability. A
feature of the TCS, Brake Limited Differential (BLD)
functions similarly to a limited slip differential and
controls the wheel spin across a driven axle. If one
wheel on a driven axle is spinning faster than the
other, the system will apply the brake of the spinning wheel. This will allow more engine torque
to be applied to the wheel that is not spinning. BLD
may remain enabled even if TCS and Electronic
Stability Control (ESC) are in reduced modes.
Trailer Sway Control (TSC)
TSC uses sensors in the vehicle to recognize an
excessively swaying trailer and will take the
appropriate actions to attempt to stop the sway.
NOTE:TSC cannot stop all trailers from swaying. Always
use caution when towing a trailer and follow the
trailer tongue weight recommendations
Ú
page 212.
When TSC is functioning, the ESC Activation/
Malfunction Indicator Light will flash, the engine
power may be reduced and you may feel the
brakes being applied to individual wheels to
attempt to stop the trailer from swaying. TSC is
disabled when the ESC system is in the “Partial
Off” or “Full Off” modes.
AUXILIARY DRIVING SYSTEMS
BLIND SPOT MONITORING (BSM) —
I
F EQUIPPED
BSM uses two radar sensors, located inside the
taillights, to detect highway licensable vehicles
(automobiles, trucks, motorcycles, etc.) that enter
the blind spot zones from the rear/front/side of
the vehicle.

Rear Detection Zones

When the vehicle is started, the BSM Warning Light
will momentarily illuminate in both outside
rearview mirrors to let the driver know that the
system is operational. The BSM system sensors
operate when the vehicle is in any forward gear
and enters standby mode when the vehicle is in
PARK.
WARNING!
If TSC activates while driving, slow the vehicle
down, stop at the nearest safe location, and
adjust the trailer load to eliminate trailer sway.
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SAFETY325
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
distance .
NOTE:Trailer length is determined within +/- 3 ft (1 m) of
actual 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
spot 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 will be reduced
Ú
page 322.
NOTE:
The Trailer Merge Alert system DOES NOT alert
the driver about rapidly approaching vehicles
that are outside the detection zones.
The Blind Spot Monitoring (BSM) system may
experience drop outs (blinking on and off) of the
side mirror warning indicator lamps when a
motorcycle or any small object remains at the
side of the vehicle for extended periods of time
(more than a couple of seconds).
Crowded areas such as parking lots, neighbor -
hoods, etc. may lead to an increased amount of
false alerts. This is normal operation.
FORWARD COLLISION WARNING (FCW)
W
ITH MITIGATION — IF EQUIPPED
FCW 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.
WARNING!
The Blind Spot Monitoring system is only an aid
to help detect objects in the blind spot zones.
The BSM system is not designed to detect
pedestrians, bicyclists, or animals. Even if your
vehicle is equipped with the BSM system, always
check your vehicle’s mirrors, glance over your
shoulder, and use your turn signal before
changing lanes. Failure to do so can result in
serious injury or death.
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436SERVICING AND MAINTENANCE
F37 ––Spare
F38 ––Spare
F39 ––Spare
F40 20 Amp Blue –Dome Pursuit Vehicle *
F41 A&B –15 Amp BlueLumbar Support & Pass SW / Steering Column Control
Module / HVAC Control Module / ICS Switch Bank / Upper
Switch Bank
F42 A&B –10 Amp RedMod Transfer Case Switch Module (TCSM) / SBW / Electric
Park Brake SW / Module TPM Trailer / Module Gateway Can-C
Trailer TPM / Seat LT & RT Vent
F43 A&B –10 Amp Red Port Diagnostics / Front & Rear USB
F44 –20 Amp YellowRadio / DCSD / Telematics Box Mod / Trailer Gateway Module
(360)
F45 30 Amp Pink –Mod Door MUX Driver
F46 30 Amp Pink –Mod Door MUX Passenger
F47 ––Spare
F48A –10 Amp RedRear View Mirror / SW Window Passenger / Rear USB /
Wireless Charging Pad Mod
F49 –15 Amp BlueMod CVPM / SNSR Blind Spot / HDLP Adaptive Front Lighting
Sensor (AFLS)
F50A –10 Amp Red Battery PACK Control Mod *
F51 A&B ––Spare
Cavity Cartridge Fuse Micro Fuse Description
* If Equipped

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486 Air Suspension Payload Protection
............ 134Air Suspension Ride Height Lowering........ 135Air Suspension Ride Height Raising..........134Anti-Lock Brake System............................. 131Brake Assist Warning................................ 316Brake Warning.......................................... 128Bulb Replacement..................................... 438Cargo.................................................. 57, 135Center Mounted Stop................................ 443Courtesy/Reading....................................... 59Cruise.............................................. 136, 137Daytime Running......................................... 55ECO Mode................................................. 136Electric Power Steering............................. 130Electronic Park Brake................................ 131Electronic Stability Control........................ 131Electronic Throttle Control......................... 129Engine Coolant Temperature..................... 130Exterior............................................... 54, 370Fog.................................................. 136, 442Forward Collision Warning......................... 135Hazard Warning Flasher............................ 371Headlights............................................ 54, 56High Beam......................................... 55, 137High Beam/Low Beam Select..................... 55Hill Descent Control Indicator.......... 137, 316Hood Open................................................ 130Illuminated Entry......................................... 60Interior........................................................ 59LaneSense...................................... 136, 137
Lights On Reminder..................................... 56Low Diesel Exhaust Fluid.......................... 135Low Fuel................................................... 136Malfunction Indicator (Check Engine)....... 132NEUTRAL.................................................. 135Oil Temperature........................................ 130Passing........................................................ 55Rear Axle Lock.......................................... 135Rear Axle Lock Fault................................. 133Rear Tail Lamps....................................... 442Seat Belt Reminder.................................. 130Security Alarm.......................................... 131Service..................................................... 438Service Stop Start..................................... 133Stop Start Active....................................... 136TOW HAUL................................................ 135Traction Control........................................ 316Transmission Temperature....................... 131Turn Signals.................................... 137, 440Wait To Start............................................. 135Warning Instrument ClusterDescriptions......................................... 137Limited-Slip Differential....................... 173, 427Load Shed Battery Saver Mode.................... 127Load Shed Battery Saver On......................... 127Load Shed Electrical Load Reduction........... 127Load Shed Intelligent Battery Sensor............ 127Loading Vehicle............................................ 211Tires......................................................... 448
LocksAutomatic Door............................................32Child Protection...........................................32Power Door..................................................29Low Tire Pressure System............................. 328Lubrication, Body.......................................... 418Lug Nuts........................................................ 466Lug Nuts/Bolts.............................................. 466
M
Maintenance.............................................83, 85Maintenance Free Battery............................ 408Maintenance Schedule............... 393, 398, 399Malfunction Indicator Light
(Check Engine).............................................. 132ManualService...................................................... 480Media Hub.......................................................75Media Mode.................................................. 270Memory Seat....................................................34Memory Settings..............................................34Methanol....................................................... 468Mirrors.............................................................45Automatic Dimming.....................................45Digital..........................................................46Electric Powered..........................................48Heated.........................................................49Manual Dimming.........................................45Memory.......................................................34Outside........................................................47

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