RAM CHASSIS CAB 2019 Owners Manual
Manufacturer: RAM, Model Year: 2019, Model line: CHASSIS CAB, Model: RAM CHASSIS CAB 2019Pages: 607, PDF Size: 12.68 MB
Page 371 of 607

IN CASE OF EMERGENCY 369
(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. WARNING!  (Continued)
• 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)
6 
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370 IN CASE OF EMERGENCY
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  are
damaged 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.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.
• 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!
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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IN CASE OF EMERGENCY 371
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. General Information
This  device  complies  with  Part 15 of  the FCC  Rules. Opera -
tion is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) this device must
accept any interference received, including interference that
may cause undesired operation.
NOTE:
Changes  or  modifications  not  expressly  approved  by  the
party  responsible  for  compliance  could  void  the  user's
authority to operate the equipment.
BULB REPLACEMENT
Replacement Bulbs 
All of the inside bulbs are brass or glass-wedge base. Aluminum base bulbs are not approved.
Interior Bulbs
Bulb Number
Overhead Console Lamps TS 212–9
Dome Lamp 7679
NOTE:
For lighted switches, see your authorized dealer for replacement instructions. 6 
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372 IN CASE OF EMERGENCY
Exterior Bulbs
Bulb Number
Low Beam (Halogen Reflector Headlamp) H11LL
High Beam (Halogen Reflector Headlamp) 9005LL
Low & High Beam (LED Reflector Headlamp) LED (Serviced At An Authorized Dealer)
Low & High Beam (LED Projector Headlamp) LED (Serviced At An Authorized Dealer)
Turn Signal / Front Position (Halogen Reflector Headlamp) 7444NA
Turn Signal / Front Position (LED Headlamps) LED (Serviced at authorized dealer)
Front Side Marker (Halogen Reflector Headlamp) W5W
Front Side Marker (LED Headlamps) LED (Serviced At An Authorized Dealer)
Front Fog Lamps (Halogen Reflector Headlamp) H11LL
Front Fog Lamps (LED Headlamps) LED (Serviced At An Authorized Dealer)
Side Indicators (Front And Side View Mirror) LED (Serviced at authorized dealer)
Center High Mounted Stop Lamp (CHMSL) 921
Cab Roof Marker Lamps 194NA
Box Off Tail Lamps – Stop/Turn/Tail/License Plate 1157
Box Off Tail Lamps – Back Up 1156 
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IN CASE OF EMERGENCY 373
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. Reach  into  the  front  wheel  house  ahead  of  the  front
wheel,  remove  the  fastener,  and  lift  the  cover  over  the
access hole in the front of the wheel house splash shield.
Access to the rear of the lamp can be gained through this
access hole. Splash Shield Access Cover1 — Access Cover
2 — Fastener
6 
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374 IN CASE OF EMERGENCY
(Continued)4. Reach through the access hole of the wheel house splash
shield  and  disengage  the  bulb  access  cover  by  rotating
counterclockwise.
Bulb Access Cover
5. Disconnect  the  internal  lamp  wiring  harness  connector
from the low beam bulb. 6. Rotate  the  bulb  counterclockwise  1/4  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.
High Beam
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Look  under  the  hood  and  behind  the  headlamp  to  find
the high beam bulb access cover.
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.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. CAUTION!  (Continued) 
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IN CASE OF EMERGENCY 375
6. Rotate  the  bulb  counterclockwise  1/4  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.
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  find
the 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  ¼
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.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.
6 
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376 IN CASE OF EMERGENCY
Side Marker Lamp
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Reach  into  the  front  wheel  house  ahead  of  the  front
wheel,  remove  the  fastener,  and  lift  the  cover  over  the
access hole in the front of the wheel house splash shield.
Access to the rear of the lamp can be gained through this
access hole.
Splash Shield Access Cover 4. Reach through the access hole of the wheel house splash
shield  and  disengage  the  side  marker  socket  by  rotating
counterclockwise ¼ turn.
Side Marker Socket
5. Pull the socket and 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.
1 — Access Cover
2 — Fastener 
Page 379 of 607

IN CASE OF EMERGENCY 377
Fog Lamps — If Equipped 
1. Reach  under  and  behind  the  front  bumper  to  access  the
back of the front fog lamp housing.
2. Disconnect  the  fog  lamp  wiring  harness  connector  from
the fog lamp bulb.
3. Rotate  the  bulb  counterclockwise  ¼  turn  to  unlock  the
bulb from the housing.
4. Pull the bulb straight out from the housing. Center High-Mounted Stoplamp (CHMSL) With Cargo 
Lamp  
1. Remove  the  two screws  holding  the housing/lens  to  the
body as shown.
CHMSL Mounting Screw LocationsCAUTION!
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.
6 
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378 IN CASE OF EMERGENCY
2. Separate  the  connector  holding  the  housing  and  wiring
harness to the body.
CHMSL Connector Location
3. Turn  the  desired  bulb  socket  ¼  turn  and  remove  the
socket and bulb from housing.
4. Pull the desired bulb straight from the socket. CHMSL Bulb And Socket
• Outside Bulbs: Cargo Lamps
• Inside Bulb: Center High-Mounted Stop Lamp
5. Reverse  the  procedure  for  installation  of  bulbs  and
housing. 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.