RAM CHASSIS CAB 2021 Owners Manual
Manufacturer: RAM, Model Year: 2021, Model line: CHASSIS CAB, Model: RAM CHASSIS CAB 2021Pages: 463, PDF Size: 21.5 MB
Page 341 of 463

IN CASE OF EMERGENCY339
(Continued)
Automatic SOS — If Equipped
Automatic SOS is a hands-free safety service 
that can immediately connect you with help in 
the event that your vehicle’s airbags deploy. 
Please refer to your provided radio supplement 
for complete information.
JACKING AND TIRE CHANGING    
4500/5500 MODELS
These vehicles do not come equipped with a 
jack.
NOTE:
Jacking and tire changing on 4500/5500 models 
should be performed by an authorized dealer, or 
knowledgeable service personnel with the appro -
priate heavy duty equipment, like a tire service 
company.
PREPARATIONS FOR JACKING
1. Park the vehicle on a firm, level surface.  Avoid ice or slippery areas.
2. Place the gear selector into PARK.  On four-wheel drive vehicles, shift the 
transfer case to the 4WD Low position.
3. Turn on the Hazard Warning Flashers.
4. Apply the parking brake.
5. Turn the ignition OFF.
WARNING!
Do not attempt to change a tire on the side 
of the vehicle close to moving traffic. Pull 
far enough off the road to avoid the danger 
of being hit when operating the jack or 
changing the wheel.
Being under a jacked-up vehicle is 
dangerous. The vehicle could slip off the 
jack and fall on you. You could be crushed. 
Never put any part of your body under a 
vehicle that is on a jack. If you need to get 
under a raised vehicle, take it to a service 
center where it can be raised on a lift.
Never start or run the engine while the 
vehicle is on a jack.
The jack is designed to be used as a tool for 
changing tires only. The jack should not be 
used to lift the vehicle for service purposes. 
The vehicle should be jacked on a firm level 
surface only. Avoid ice or slippery areas.
WARNING!  (Continued)
WARNING!
Do not attempt to change a tire on the side of 
the vehicle close to moving traffic. Pull far 
enough off the road to avoid being hit when 
operating the jack or changing the wheel.
7
21_DPF_OM_EN_USC_t.book  Page 339   
Page 342 of 463

340IN CASE OF EMERGENCY  
(Continued)
6. Block both the front and rear of the wheel diagonally opposite the jacking position. 
For example, if the driver’s front wheel is 
being changed, block the passenger’s rear 
wheel.
Wheel Blocked
NOTE:
Passengers should not remain in the vehicle 
when the vehicle is being jacked.JACKING INSTRUCTIONS 4500 AND 
5500 S
ERIES
Jack Warning Label
WARNING!
Carefully follow these tire changing warnings 
to help prevent personal injury or damage to 
your vehicle:
Always park on a firm, level surface as far 
from the edge of the roadway as possible 
before raising the vehicle.
Turn on the Hazard Warning Flashers.
Apply the parking brake firmly and set the 
transmission in PARK.
Block the wheel diagonally opposite the 
wheel to be raised.
Never start or run the engine with the 
vehicle on a jack.
Do not let anyone sit in the vehicle when it 
is on a jack.
Do not get under the vehicle when it is on a 
jack. If you need to get under a raised 
vehicle, take it to a service center where it 
can be raised on a lift.
Only use the jack in the positions indicated 
and for lifting this vehicle during a tire 
change.
If working on or near a roadway, be 
extremely careful of motor traffic.
To assure that spare tires, flat or inflated, 
are securely stowed, spares must be 
stowed with the valve stem facing the 
ground.
WARNING!  (Continued)
21_DPF_OM_EN_USC_t.book  Page 340   
Page 343 of 463

IN CASE OF EMERGENCY341
1. If equipped, remove the spare wheel, jack, 
and tools from storage.
2. Using the lug wrench, loosen, but do not  remove, the lug nuts by turning them 
counterclockwise one turn while the wheel 
is still on the ground.
3. When changing the front wheel, assemble  the jack driver to the jack and connect the 
jack driver to the extension tube. Place the 
jack under the axle as close to the tire as 
possible with the jack driver extending to 
the front. Connect the extension tubes and 
lug wrench.
 Front Jacking Locations
When changing a rear wheel, assemble the 
jack driver to the jack and connect the jack 
driver to the extension tubes. Securely 
place the jack under the sway bar bracket 
(unless both tires are flat on one side, then 
place jack under shock bracket) facing for -
ward in vehicle. Connect the extension 
tubes and lug wrench.
 Rear Jacking Location
Before raising the wheel off the ground, 
make sure that the jack will not damage 
surrounding truck parts and adjust the jack 
position as required.
NOTE:
If the jack will not lower by turning the dial 
(thumbwheel) by hand, it may be necessary to 
use the jack driver in order to lower the jack.
4. By rotating the lug wrench clockwise, raise  the vehicle until the wheel just clears the 
surface.
CAUTION!
Do not attempt to raise the vehicle by jacking 
on locations other than those indicated in the 
Jacking Instructions for this vehicle.
7
21_DPF_OM_EN_USC_t.book  Page 341   
Page 344 of 463

342IN CASE OF EMERGENCY  
5. Remove the lug nuts and pull the wheel off. 
Install the spare wheel and lug nuts with the 
cone shaped end of the nuts toward the 
wheel on Single Rear-Wheel (SRW) models. 
On Dual Rear-Wheel models (DRW) the lug 
nuts are a two-piece assembly with a flat 
face. Lightly tighten the nuts. To avoid risk 
of forcing the vehicle off the jack, do not 
fully tighten the nuts until the vehicle has 
been lowered.
6. Using the lug wrench, finish tightening the nuts using a crisscross pattern  
Úpage 432. If in doubt about the correct 
tightness, have them checked with a torque 
wrench by an authorized dealer or at a 
service station. 7. Install wheel center cap (if equipped) and 
remove wheel blocks. Do not install chrome 
or aluminum wheel center caps on the 
spare wheel. This may result in cap damage.
8. Lower the jack to its fully closed position.  If the jack will not lower by turning the dial 
(thumbwheel) by hand, it may be necessary 
to use the jack driver in order to lower the 
jack. Stow the replaced tire, jack, and tools 
as previously described.
9. Adjust the tire pressure when possible.
10. After 25 miles (40 km), check the lug nut  torque   Úpage 432 with a torque wrench to 
ensure that all lug nuts are properly seated 
against the wheel.
Dual Rear Wheels  
Slots in the wheels will assist in properly 
orienting the inner and outer wheels. Align 
these slots when assembling the wheels 
for best access to the tire valve on the inner 
wheel. The tires of both dual wheels must be 
completely off the ground when tightening to 
ensure wheel centering and maximum wheel 
clamping.
Dual wheel models require a special heavy-duty 
lug nut tightening adapter (included with the 
vehicle) to correctly tighten the lug nuts. Also, 
when it is necessary to remove and install dual 
rear wheels, use a proper vehicle lifting device.
NOTE:
When installing a spare tire (if equipped) as part 
of a dual rear wheel end combination, the tire 
diameter of the two individual tires must be 
compared. If there is a significant difference, 
the larger tire should be installed in a front loca-
tion. The correct direction of rotation for dual 
tire installations must also be observed.
It is recommended that wheel stud nuts be kept 
torqued to specifications at all times. Torque 
wheel stud nuts to specifications at each 
lubrication interval  Ú page 432.WARNING!
Raising the vehicle higher than necessary can 
make the vehicle less stable. It could slip off 
the jack and hurt someone near it. Raise the 
vehicle only enough to remove the tire.
WARNING!
A loose tire or jack thrown forward in a collision 
or hard stop, could endanger the occupants of 
the vehicle. Always stow the jack parts and the 
spare tire in the places provided.
21_DPF_OM_EN_USC_t.book  Page 342   
Page 345 of 463

IN CASE OF EMERGENCY343
(Continued)
Wheel Nuts
All wheel nuts should be tightened occasionally 
to eliminate the possibility of wheel studs being 
sheared or the bolt holes in the wheels becoming 
elongated. This is especially important during the 
first few hundred miles/kilometers of operation 
to allow the wheel nuts to become properly set. 
All wheel nuts should first be firmly seated 
against the wheel. The wheel nuts should then
be tightened to recommended torque. Tighten 
the wheel nuts to final torque in increments. 
Progress around the bolt circle, tightening the 
wheel nut opposite to the wheel nut just 
previously tightened until final torque is achieved 
  
Ú
 page 432.
TO STOW THE FLAT OR SPARE — IF 
E
QUIPPED 
Refer to Upfitters Body Builder’s Guide for 
information on stowing your spare tire
(if equipped).
HUB CAPS/WHEEL COVERS — IF 
E
QUIPPED  
The hub caps must be removed before raising 
the vehicle off the ground. For 3500 Single Rear-Wheel (SRW) models, use 
the flat end of the lug wrench to hook and pull 
off the hub cap. Find the opening in the hub cap, 
insert the lug wrench, and pull off the cap. If you 
need to pry against the wheel, protect the wheel 
surface.
Lug Wrench Insertion Location — Hub Cap
 On 3500 models with Dual Rear-Wheels (DRW), 
you must first remove the hub caps—use the 
procedure noted for the single rear wheel. For 
the wheel covers (wheel skins), insert the flat 
end of the lug wrench between the outer edge 
of the wheel cover and the wheel. Pry against 
the wheel to remove the wheel cover. Repeat 
this procedure around the wheel until the cover 
pops off.
Lug Wrench Insertion Location — Wheel Cover
CAUTION!
Use extreme caution when removing the front and 
rear wheel covers. Damage can occur to the 
center cap and/or the wheel if screwdriver type 
tools are used. A pulling motion, not a pry off 
motion, is recommended to remove the caps.
CAUTION!
Use a pulling motion to remove the hub 
cap. Do not use a twisting motion when 
removing the hub cap, damage to the hub 
cap; finish may occur.
7
21_DPF_OM_EN_USC_t.book  Page 343   
Page 346 of 463

344IN CASE OF EMERGENCY  
Replace the wheel covers using a rubber mallet 
to ease the installation. Align the wheel cover 
vent holes to the wheel vent holes. Tap on the 
wheel cover as needed to firmly seat it evenly 
around the wheel.
JUMP STARTING 
If your vehicle has a discharged battery, it can 
be jump started using a set of jumper cables 
and a battery in another vehicle, or by using a 
portable battery booster pack. Jump starting 
can be dangerous if done improperly, so please 
follow the procedures in this section carefully. NOTE:
When using a portable battery booster pack, 
follow the manufacturer's operating instruc
-
tions and precautions.
PREPARATIONS FOR JUMP START
The battery in your vehicle is located in the front 
of the engine compartment, behind the left 
headlight assembly.
Battery Location
 If you have a diesel engine, you may have two 
batteries, however jump start off the driver side 
battery.
The positive battery post may be covered with a 
protective cap if equipped. Lift up on the cap to 
gain access to the positive battery post. Do not 
jump off fuses. Only jump directly off positive 
post which has a positive 
(+) symbol on or 
around the post.
Positive (+) Battery Post
NOTE:
1. Apply the parking brake, shift the  automatic transmission into PARK and 
turn the ignition OFF.
2. Turn off the heater, radio, and all electrical  accessories.
The rear hub caps on the dual rear wheel 
has two pull off notches. Make sure that the 
hook of the jack handle driver is located 
squarely in the cap notch before attempting 
to pull off.
WARNING!
Do not attempt jump starting if the battery is 
frozen. It could rupture or explode and cause 
personal injury.
CAUTION!  (Continued)CAUTION!
Do not use a portable battery booster pack or 
any other booster source with a system 
voltage greater than 12 Volts or damage to 
the battery, starter motor, alternator or 
electrical system may occur.
21_DPF_OM_EN_USC_t.book  Page 344   
Page 347 of 463

IN CASE OF EMERGENCY345
3. If using another vehicle to jump start the 
battery, park the vehicle within the jumper 
cables reach, apply the parking brake, and 
make sure the ignition is OFF.JUMP STARTING PROCEDURE
NOTE:
Make sure at all times that unused ends of 
jumper cables are not contacting each other or 
either vehicle while making connections.
Connecting The Jumper Cables
1. Connect the positive 
 (+) end of the jumper 
cable to the positive (+)
  post of the 
discharged vehicle.
NOTE:
Do not jump off fuses. Only jump directly off 
positive post. 2. Connect the opposite end of the positive 
(+) 
jumper cable to the positive  (+) post of the 
booster battery.
3. Connect the negative  (-) end of the jumper 
cable to the negative  (-) post of the booster 
battery.
4. Connect the opposite end of the negative  (-) 
jumper cable to a good engine ground. 
A “ground” is an exposed metallic/
unpainted part of the engine, frame or 
chassis, such as an accessory bracket or 
large bolt. The ground must be away from 
the battery and fuel injection system.
5. Start the engine in the vehicle that has the  booster battery, let the engine idle a few 
minutes, and then start the engine in the 
vehicle with the discharged battery.
WARNING!
Take care to avoid the radiator cooling fan 
whenever the hood is raised. It can start 
anytime the ignition switch is ON. You can 
be injured by moving fan blades.
Remove any metal jewelry such as rings, 
watch bands and bracelets that could 
make an inadvertent electrical contact.
You could be seriously injured.
Batteries contain sulfuric acid that can 
burn your skin or eyes and generate 
hydrogen gas which is flammable and 
explosive. Keep open flames or sparks 
away from the battery.
WARNING!
Do not allow vehicles to touch each other as 
this could establish a ground connection and 
personal injury could result.
WARNING!
Failure to follow this jump starting procedure 
could result in personal injury or property 
damage due to battery explosion.
CAUTION!
Failure to follow these procedures could 
result in damage to the charging system of 
the booster vehicle or the discharged vehicle.
WARNING!
Do not connect the jumper cable to the 
negative (-) post of the discharged battery. 
The resulting electrical spark could cause the 
battery to explode and could result in 
personal injury.7
21_DPF_OM_EN_USC_t.book  Page 345   
Page 348 of 463

346IN CASE OF EMERGENCY  
6. Once the engine is started, follow the 
disconnecting procedure below.
Disconnecting The Jumper Cables
1. Disconnect the negative 
(-)
  end of the 
jumper cable from the engine ground of 
the vehicle with the discharged battery.
2. Disconnect the opposite end of the  negative  (-) jumper cable from the 
negative  (-) post of the booster battery.
3. Disconnect the positive  (+) end of the 
jumper cable from the positive  (+) post of 
the booster battery.
4. Disconnect the opposite end of the positive  (+) jumper cable from the 
positive  (+) post of the vehicle with the 
discharged battery.
 If frequent jump starting is required to start your 
vehicle you should have the battery and charging 
system inspected at an authorized dealer.
IF YOUR ENGINE OVERHEATS 
In any of the following situations, you can 
reduce the potential for overheating by taking 
the appropriate action.
On the highways — slow down.
In city traffic — while stopped, place the trans
-
mission in NEUTRAL, but do not increase the 
engine idle speed while preventing vehicle 
motion with the brakes. NOTE:
There are steps that you can take to slow down 
an impending overheat condition: 
If your Air Conditioner (A/C) is on, turn it off. 
The A/C system adds heat to the engine 
cooling system and turning the A/C off can 
help remove this heat.
You can also turn the temperature control to 
maximum heat, the mode control to floor and 
the blower control to high. This allows the 
heater core to act as a supplement to the 
radiator and aids in removing heat from the 
engine cooling system.
CAUTION!
Do not connect jumper cable to any of the 
fuses on the positive battery terminal. The 
resulting electrical current will blow the fuse.
CAUTION!
Accessories plugged into the vehicle power 
outlets draw power from the vehicle’s battery, 
even when not in use (i.e., cellular devices, 
etc.). Eventually, if plugged in long enough 
without engine operation, the vehicle’s battery 
will discharge sufficiently to degrade battery 
life and/or prevent the engine from starting.
WARNING!
You or others can be badly burned by hot 
engine coolant (antifreeze) or steam from 
your radiator. If you see or hear steam coming 
from under the hood, do not open the hood 
until the radiator has had time to cool. Never 
try to open a cooling system pressure cap 
when the radiator or coolant bottle is hot.
21_DPF_OM_EN_USC_t.book  Page 346   
Page 349 of 463

IN CASE OF EMERGENCY347
GEAR SELECTOR OVERRIDE — 6–SPEED 
TRANSMISSION 
In order to move the vehicle in cases where the 
transmission will not shift out of PARK (P) (such 
as a depleted battery), a Manual Park Release 
is available.
1. Turn the engine OFF.
2. Firmly apply the parking brake.
3. Tilt the steering wheel to the full up position.
4. Press and maintain firm pressure on the 
brake pedal. 5. Insert a screwdriver or similar tool into the 
access port (ringed circle) on the bottom of 
the steering column, and push and hold the 
override release lever up.
Gear Selector Override Access Port Location Gear Selector Override Access Port Engaging The Access Port
6. Move the gear selector to the NEUTRAL  position.
7. The vehicle may then be started in  NEUTRAL.
CAUTION!
Driving with a hot cooling system could 
damage your vehicle. If the temperature 
gauge reads HOT (H), pull over and stop the 
vehicle. Idle the vehicle with the air 
conditioner turned off until the pointer drops 
back into the normal range. If the pointer 
remains on HOT (H), and you hear continuous 
chimes, turn the engine off immediately and 
call for service.
7
21_DPF_OM_EN_USC_t.book  Page 347   
Page 350 of 463

348IN CASE OF EMERGENCY  
MANUAL PARK RELEASE — 8 – SPEED 
TRANSMISSION 
In order to move the vehicle in cases where the 
transmission will not shift out of PARK (P) (such 
as a depleted battery), a Manual Park Release 
is available. Follow these steps to activate the Manual Park 
Release:
1. Firmly apply the parking brake.
2. Using a small screwdriver or similar tool, 
remove the Manual Park Release access 
cover, which is just above the parking brake 
release handle, below and to the left of the 
steering column.
Manual Park Release Cover
3. Press and maintain firm pressure on the  brake pedal.
4. Using the screwdriver or similar tool, push  the Manual Park Release lever locking tab 
(just below the middle of the lever) upwards.
 Manual Park Release Pull Strap
5. While holding the locking tab in the  disengaged position, pull the tether strap to 
rotate the lever rearward, until it locks in 
place pointing towards the driver's seat. 
Release the locking tab and verify that the 
Manual Park Release lever is locked in the 
released position.
6. The vehicle is now out of PARK and can be  towed. Release the parking brake only when 
the vehicle is securely connected to a tow 
vehicle.
WARNING!
Always secure your vehicle by fully applying 
the parking brake before activating the 
Manual Park Release. In addition, you should 
be seated in the driver’s seat with your foot 
firmly on the brake pedal when activating the 
Manual Park Release. Activating the Manual 
Park Release will allow your vehicle to roll 
away if it is not secured by the parking brake, 
or by proper connection to a tow vehicle. 
Activating the Manual Park Release on an 
unsecured vehicle could lead to serious injury 
or death for those in or around the vehicle.
21_DPF_OM_EN_USC_t.book  Page 348