2019 Ram 2500 tail light

136 GETTING TO KNOW YOUR VEHICLE
RamBox Light Switch
Cargo bins feature two removable drain plugs (to allow
water to drain from bins). To remove plug, pull up on the
edge. To install push plug downward into drain hole.
NOTE:
Provisions are provided in the bins for cargo dividers and
shelf supports. These accessories (in addition to other
RamBox accessories) are available from Mopar. Locking And Unlocking RamBox
Push and release the lock or unlock button on the key fob to
lock and unlock all doors, the tailgate and the RamBox (if
equipped). Refer to “Keys” in “Getting To Know Your
Vehicle” for further details. The RamBox storage bins can be
locked using the vehicle key. To lock and unlock the storage
bin, insert the key into the keyhole on the push button and
turn clockwise to lock or counterclockwise to unlock.
Always return the key to the upright (vertical) position
before removing the key from the push button.CAUTION!
• Ensure cargo bin lids are closed and latched before moving or driving vehicle.
• Loads applied to the top of the bin lid should be mini -
mized to prevent damage to the lid and latching/
hinging mechanisms.
• Damage to the RamBox bin may occur due to heavy/ sharp objects placed in bin that shift due to vehicle
motion. In order to minimize potential for damage,
secure all cargo to prevent movement and protect inside
surfaces of bin from heavy/sharp objects with appro -
priate padding.

144 GETTING TO KNOW YOUR VEHICLE
SLIDE-IN CAMPERS
Camper Applications
Certain truck models are not recommended for slide-in
campers. To determine if your vehicle is excluded, please
refer to the “Consumer Information Truck-Camper
Loading” document at www.ramtrucks.com. For safety
reasons, follow all instructions in this important document.
NOTE:
When a cap or pickup camper is installed on a vehicle, an
alternate Center High-Mounted Stop Light (CHMSL) must
be provided.
EASY-OFF TAILGATE
To simplify mounting of a camper unit with an overhang, the
tailgate can be removed.
NOTE:
The electric connector at the bottom of the tailgate must be
disconnected prior to removing the tailgate.
Disconnecting The Rear Camera And Remote Keyless
Entry
1. Open the tailgate to access the rear camera or Remote Keyless Entry connector bracket located on the rear sill.
Connector Bracket
WARNING!
To avoid inhaling carbon monoxide, which is deadly,
the exhaust system on vehicles equipped with “Cap or
Slide-In Campers” should extend beyond the
overhanging camper compartment and be free of leaks.

208 SAFETY
Feedback To The Driver
The instrument cluster has an HDC icon and the HDC switch
has an LED icon, which offers feedback to the driver about
the state HDC is in.
• The cluster icon and switch lamp will illuminate andremain on solid when HDC is enabled or activated. This is
the normal operating condition for HDC.
• The cluster icon and switch lamp will flash for several seconds then extinguish when the driver pushes the HDC
switch but enable conditions are not met.
• The cluster icon and switch lamp will flash for several seconds then extinguish when HDC disables due to excess
speed.
• The cluster icon and switch lamp will flash when HDC deactivates due to overheated brakes. The flashing will
stop and HDC will activate again once the brakes have
cooled sufficiently.AUXILIARY DRIVING SYSTEMS
Blind Spot Monitoring (BSM) — If Equipped
The Blind Spot Monitoring (BSM) system uses two
radar-based sensors, located inside the taillights, to detect
highway licensable vehicles (automobiles, trucks, motorcy -
cles, etc.) that enter the blind spot zones from the rear/front/
side of the vehicle.
Rear Detection Zones
WARNING!
HDC is only intended to assist the driver in controlling
vehicle speed when descending hills. The driver must
remain attentive to the driving conditions and is
responsible for maintaining a safe vehicle speed.

SAFETY 209
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 or REVERSE and enters stand-by mode when the
vehicle is in PARK.
The BSM detection zone covers approximately one lane
width on both sides of the vehicle 12 ft (3.8 m). The zone
length starts at the outside rear view mirror and extends
approximately 10 ft (3 m) beyond the rear bumper of the
vehicle. The BSM system monitors the detection zones on
both sides of the vehicle when the vehicle speed reaches
approximately 6 mph (10 km/h) or higher and will alert the
driver of vehicles in these areas.
NOTE:
• The BSM system DOES NOT alert the driver about rapidlyapproaching 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). The vehicle’s taillights, where the radar sensors are located,
must remain free of snow, ice, and dirt/road contamination
so that the BSM system can function properly. Do not block
the taillights with foreign objects (bumper stickers, bicycle
racks, etc.).
Radar Sensor Locations
If the system detects degraded performance due to contami -
nation or foreign objects, a message will warn you of a
blocked sensor and the warning indicators in side view
mirrors will be on. The warning indicators will remain illu-
minated until blockage clearing conditions are met. First
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210 SAFETY
clear the taillights around the sensors of the blockage. After
removing the blockage, the following procedure can be used
to reset the system:
• Cycle the ignition from ON to OFF and then back ON.
If the blockage message is still present after cycling the igni-
tion and driving in traffic, check again for a blockage.
The BSM system notifies the driver of objects in the detection
zones by illuminating the BSM warning light located in the
outside mirrors in addition to sounding an audible (chime)
alert and reducing the radio volume. Refer to “Modes Of
Operation” in this section for further information.
Warning Light Location The BSM system monitors the detection zone from three
different entry points (side, rear, front) while driving to see
if an alert is necessary. The BSM system will issue an alert
during these types of zone entries.
Entering From The Side
Vehicles that move into your adjacent lanes from either side
of the vehicle.
Side Monitoring

568 TECHNICAL SPECIFICATIONS
Reformulated Gasoline
Many areas of the country require the use of cleaner burning
gasoline referred to as “Reformulated Gasoline”. Reformu-
lated gasoline contains oxygenates and are specifically
blended to reduce vehicle emissions and improve air quality.
The use of reformulated gasoline is recommended. Properly
blended reformulated gasoline will provide improved
performance and durability of engine and fuel system
components.
Materials Added To Fuel
Besides using unleaded gasoline with the proper octane
rating, gasolines that contain detergents, corrosion and
stability additives are recommended. Using gasolines that
have these additives will help improve fuel economy, reduce
emissions, and maintain vehicle performance.Designated TOP TIER Detergent Gasoline contains a
higher level of detergents to further aide in mini -
mizing engine and fuel system deposits. When avail -
able, the usage of TOP TIER Detergent gasoline is
recommended. Visit www.toptiergas.com for a list of TOP
TIER Detergent Gasoline Retailers. Indiscriminate use of fuel system cleaning agents should be
avoided. Many of these materials intended for gum and
varnish removal may contain active solvents or similar
ingredients. These can harm fuel system gasket and
diaphragm materials.
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxygen
-
ates such as ethanol.
Problems that result from using gasoline containing more
than 15% ethanol (E-15) or gasoline containing methanol are
not the responsibility of the manufacturer and may void or
not be covered under New Vehicle Limited Warranty.
CAUTION!
DO NOT use E-85, gasoline containing methanol, or
gasoline containing more than 15% ethanol (E-15). Use of
these blends may result in starting and drivability
problems, damage critical fuel system components, cause
emissions to exceed the applicable standard, and/or
cause the Malfunction Indicator Light to illuminate.
Please observe pump labels as they should clearly
communicate if a fuel contains greater than 15% ethanol
(E-15).

TECHNICAL SPECIFICATIONS 569
Do Not Use E-85 In Non-Flex Fuel Vehicles
Non-Flex Fuel Vehicles (FFV) are compatible with gasoline
containing up to 15% ethanol (E-15). Use of gasoline with
higher ethanol content may void the New Vehicle Limited
Warranty.
If a Non-FFV vehicle is inadvertently fueled with E-85 fuel,
the engine will have some or all of these symptoms:
• Operate in a lean mode.
• OBD II Malfunction Indicator Light on.
• Poor engine performance.
• Poor cold start and cold drivability.
• Increased risk for fuel system component corrosion.
CNG And LP Fuel System Modifications
Modifications that allow the engine to run on Compressed
Natural Gas (CNG) or Liquid Propane (LP) may result in
damage to the engine, emissions, and fuel system compo-
nents. Problems that result from running CNG or LP are not
the responsibility of the manufacturer and may void or not
be covered under the New Vehicle Limited Warranty.
MMT In Gasoline
Methylcyclopentadienyl Manganese Tricarbonyl (MMT) is a
manganese-containing metallic additive that is blended into
some gasoline to increase octane. Gasoline blended with
MMT provides no performance advantage beyond gasoline
of the same octane number without MMT. Gasoline blended
with MMT reduces spark plug life and reduces emissions
system performance in some vehicles. The manufacturer
recommends that gasoline without MMT be used in your
vehicle. The MMT content of gasoline may not be indicated
on the gasoline pump; therefore, you should ask your gaso -
line retailer whether the gasoline contains MMT. MMT is
prohibited in Federal and California reformulated gasoline.
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MULTIMEDIA 663
SiriusXM Guardian (4C/4C NAV) — If Equipped
NOTE:
Your vehicle may be transmitting data as authorized by the
subscriber.
An included trial and/or subscription is required to take
advantage of the SiriusXM Guardian services in the next
section of this guide. To register with SiriusXM Guardian,
press the Apps button on your 8.4-inch or 12–inch touch-
screen to get started.
NOTE:
SiriusXM Guardian is available only on equipped vehicles
purchased within the continental United States, Alaska,
Hawaii, and Canada. Services can only be used where
coverage is available; see coverage map for details. SOS Call
Theft Alarm Notification
Remote Door Lock/Unlock
Send & Go
Vehicle Finder-If Equipped
Stolen Vehicle Assistance
Remote Vehicle Start**
Remote Horn & Lights
Roadside Assistance Call
Vehicle Health Reports-If Equipped**
Vehicle Health Alert**
Performance Pages Plus**
• **If vehicle is equipped.
CAUTION!
Some SiriusXM Guardian services, including SOS Call
and Roadside Assistance Call will NOT work without an
operable LTE (voice/data) or 3G or 4G (data) network
connection compatible with your device.
9