battery Ram 1500 2020 Service Manual

STARTING AND OPERATING 335
• HVAC is set to full defrost mode at a high blower speed
• Engine has not reached normal operating temperature
• Engine temperature too high
• The battery is charging
• The transmission is not in DRIVE
• Hood is open
• Vehicle is in 4L transfer case mode
• TOW/HAUL mode is selected
• Accelerator pedal input
• Excessive 12 volt loads
It may be possible to operate the vehicle several consecutive
times in extreme conditions and not meet all criteria to
enable an Autostop state.
To Start The Engine While In Autostop Mode
While in DRIVE, the engine will start when the brake pedal
is released or the throttle pedal is depressed and the trans-
mission will automatically reengage upon engine restart. Conditions That Will Cause The Engine To Start Automat
-
ically While In Autostop Mode
The engine will start automatically when:
• The transmission selector is moved from DRIVE to REVERSE, NEUTRAL, or PARK
• To maintain cabin temperature near the HVAC settings
• HVAC is set to full defrost mode
• 12 volt demand requires engine restart
• Low brake vacuum (e.g. after several brake pedal applica -
tions)
• STOP/START OFF switch is pushed
• 4WD system is put into 4L mode
• The emissions system override is present
• A STOP/START system error present
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420 STARTING AND OPERATING
Seven-Pin Connector
Towing Tips
Before setting out on a trip, practice turning, stopping, and
backing up the trailer in an area located away from heavy
traffic.
Automatic Transmission
The DRIVE range can be selected when towing. The trans-
mission controls include a drive strategy to avoid frequent
shifting when towing. However, if frequent shifting does
occur while in DRIVE, select TOW/HAUL mode or select a
lower gear range (using the Electronic Range Select (ERS)
shift control).
NOTE:
Using TOW/HAUL mode or selecting a lower gear range
(using the ERS shift control) while operating the vehicle
under heavy loading conditions will improve performance
and extend transmission life by reducing excessive shifting
and heat build up. This action will also provide better engine
braking.
1 — Battery
2 — Backup Lamps
3 — Right Stop/Turn
4 — Electric Brakes
5 — Ground
6 — Left Stop/Turn
7 — Running Lamps
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431
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS
The Hazard Warning switch is located on the upper
switch bank just below the radio.
NOTE:
If your vehicle is equipped with a 12–inch Uconnect display,
the Hazard Warning switch is located above the display.
Push the switch to turn on the Hazard Warning flasher.
When the switch is activated, all directional turn signals will
flash on and off to warn oncoming traffic of an emergency.
Push the switch a second time to turn off the Hazard
Warning flashers.
This is an emergency warning system and it should not be
used when the vehicle is in motion. Use it when your vehicle
is disabled and it is creating a safety hazard for other motor -
ists.
When leaving the vehicle to seek assistance, the Hazard
Warning flashers will continue to operate even though the
ignition is placed in the OFF position. NOTE:
With extended use the Hazard Warning flashers may wear
down your battery.
ASSIST AND SOS SYSTEM — IF EQUIPPED
Assist And SOS Buttons
1 — ASSIST Button
2 — SOS Button
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434 IN CASE OF EMERGENCY
(Continued)
SOS Call System Limitations
Vehicles sold in Mexico DO NOT have SOS Call system
capabilities.
SOS or other emergency line operators in Mexico may not
answer or respond to SOS system calls.
If the SOS Call system detects a malfunction, any of the
following may occur at the time the malfunction is detected,
and at the beginning of each ignition cycle:
• The overhead console light located between the ASSIST and SOS buttons will continuously be illuminated red.
• The Device Screen will display the following message: “Vehicle device requires service. Please contact your
dealer.”
• An In-Vehicle Audio message will state “Vehicle device requires service. Please contact your dealer.”
• Never place anything on or near the vehicle’s operable
network and GPS antennas. You could prevent oper -
able network and GPS signal reception, which can
prevent your vehicle from placing an emergency call.
An operable network and GPS signal reception is
required for the SOS Call system to function properly.
• The SOS Call system is embedded into the vehicle’s electrical system. Do not add aftermarket electrical
equipment to the vehicle’s electrical system. This may
prevent your vehicle from sending a signal to initiate
an emergency call. To avoid interference that can cause
the SOS Call system to fail, never add aftermarket
equipment (e.g., two-way mobile radio, CB radio, data
recorder, etc.) to your vehicle’s electrical system or
modify the antennas on your vehicle. IF YOUR
VEHICLE LOSES BATTERY POWER FOR ANY
REASON (INCLUDING DURING OR AFTER AN
ACCIDENT), THE UCONNECT FEATURES, APPS
AND SERVICES, AMONG OTHERS, WILL NOT
OPERATE.
• Modifications to any part of the SOS Call system could cause the air bag system to fail when you need it. You
could be injured if the air bag system is not there to
help protect you.WARNING! (Continued)
WARNING!
• Ignoring the overhead console light could mean you will not have SOS Call services. If the overhead console
light is illuminated, have your authorized dealer
service the SOS Call system immediately.
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IN CASE OF EMERGENCY 435
Even if the SOS Call system is fully functional, factors
beyond FCA US LLC’s control may prevent or stop the SOS
Call system operation. These include, but are not limited to,
the following factors:
• Delayed accessories mode is active
• The ignition is in the OFF position
• The vehicle’s electrical systems are not intact
• The SOS Call system software and/or hardware aredamaged during a crash
• The vehicle battery loses power or becomes disconnected during a vehicle crash
• LTE (voice/data) or 4G (data) network and/or Global Positioning Satellite signals are unavailable or obstructed
• Equipment malfunction at the SOS operator facility • Operator error by the SOS operator
• LTE (voice/data) or 4G (data) network congestion
• Weather
• Buildings, structures, geographic terrain, or tunnels
NOTE:
• Your vehicle may be transmitting data as authorized by
the subscriber.
• Never place anything on or near the vehicle’s LTE (voice/ data) or 4G (data) and GPS antennas. You could prevent
LTE (voice/data) or 4G (data) and GPS signal reception,
which can prevent your vehicle from placing an emer -
gency call. An operable LTE (voice/data) or 4G (data)
network connection and a GPS signal is required for the
SOS Call system to function properly.
• The Occupant Restraint Control module turns on the
air bag Warning Light on the instrument panel if a
malfunction in any part of the system is detected. If the
Air Bag Warning Light is illuminated, have your autho -
rized dealer service the Occupant Restraint Control
system immediately.
WARNING! (Continued)
WARNING!
ALWAYS obey traffic laws and pay attention to the road.
ALWAYS drive safely with your hands on the steering
wheel. You have full responsibility and assume all risks
related to the use of the features and applications in this
vehicle. Only use the features and applications when it is
safe to do so. Failure to do so may result in an accident
involving serious injury or death.
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438 IN CASE OF EMERGENCY
Replacing Exterior Bulbs
Base Quad: Low Beam Headlamp, High Beam Headlamp,
Front Park And Turn — If Equipped
Low Beam
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Look under the hood and behind the headlamp to findthe low beam bulb access cover.
Passenger’s Low Beam Headlight Cover NOTE:
It may be necessary to remove/reposition Air Cleaner
Assembly to access passenger side headlamp/side marker
light bulbs.
4. Disengage the bulb access cover by rotating counterclock
-
wise.
5. Disconnect the internal lamp wiring harness connector from the low beam bulb.
6. Rotate the bulb counterclockwise a quarter turn to unlock the bulb from the lamp.
7. Pull the bulb straight out from the housing.
8. Reverse the procedure for installation of new bulb and covers.
CAUTION!
• Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily
surfaces. Shortened bulb life will result.
• Always use the correct bulb size and type for replace -
ment. An incorrect bulb size or type may overheat and
cause damage to the lamp, the bulb socket, or the lamp
wiring.
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IN CASE OF EMERGENCY 439
High Beam
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Look under the hood and behind the headlamp to findthe high beam bulb access cover.
Driver’s High Beam Headlight Cover
NOTE:
It may be necessary to remove/reposition Air Cleaner
Assembly to access passenger side headlamp/side marker
light bulbs. 4. Reach behind the headlamp and disengage the access
cover by rotating counterclockwise.
5. Disconnect the internal lamp wiring harness connector from the high beam bulb.
6. Rotate the bulb counterclockwise a quarter turn to unlock the bulb from the lamp.
7. Pull the bulb straight out from the housing.
8. Reverse the procedure for installation of new bulb and covers.
CAUTION!
• Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily
surfaces. Shortened bulb life will result.
• Always use the correct bulb size and type for replace -
ment. An incorrect bulb size or type may overheat and
cause damage to the lamp, the bulb socket, or the lamp
wiring.
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440 IN CASE OF EMERGENCY
Front Park And Turn
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Look under the hood and behind the headlamp to findthe park and turn socket.
Park And Turn Socket
4. Reach behind the headlamp and unlock the park and turn socket from the lamp by rotating counterclockwise a
quarter turn.
5. Pull the bulb straight out from the housing. 6. Separate the bulb from the socket without twisting.
7. Reverse the procedure for installation of new bulb and
covers.
Side Marker Lamp
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Look under the hood and behind the headlamp to find the Side Marker Light.
Passenger’s Side Marker Lamp
2020_DT_1500_OM_US.book Page 440

IN CASE OF EMERGENCY 445
External Power Distribution Center
The Power Distribution Center is located in the engine
compartment near the battery. This center contains cartridge
fuses, micro fuses, relays, and circuit breakers. A description
of each fuse and component may be stamped on the inside
cover, otherwise the cavity number of each fuse is stamped
on the inside cover that corresponds to the following chart.Power Distribution Center
CavityCartridge Fuse Micro Fuse Description
F01 –25 Amp Clear Fuel Pump Motor
F03 –5 Amp Tan MGU – If Equipped
F04 ––Spare
F05 ––Spare
F06 ––Spare
F07 ––Spare
F08 20 Amp Blue –Trailer Tow Backup
F09 –20 Amp Yellow Trailer Stop / Turn Lamp Left
F10 –20 Amp Yellow Trailer Stop / Turn Lamp Right
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446 IN CASE OF EMERGENCY
F11––Spare
F12 20 Amp Blue –Trailer Tow Park Lamp
F13 ––Spare
F14 –10 Amp Red AC Clutch
F15 –5 Amp Tan Intelligent Battery Sensor (IBS)
F16 ––Spare
F17 –20 Amp Yellow Air Suspension
F18 –15 Amp Blue AGS / Rear Axle Cooling Valve / Active Air
Dam
F19 ––Spare
F20 –20 Amp Yellow Adjustable Pedals
F21 30 Amp Pink –Power Side Step
F22 50 Amp Red –I Air Module
F23 ––Spare
F24 –20 Amp Yellow TCM SBW
F25 40 Amp Green –Exterior Lights 2
F26 50 Amp Red –ESP Module
F27 30 Amp Pink –Front Wiper
F28 –10 Amp Red PCM / ECM
F29 40 Amp Green –ESP Module
Cavity
Cartridge Fuse Micro Fuse Description
2020_DT_1500_OM_US.book Page 446