engine RAM PROMASTER CITY 2022 Service Manual
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Page 135 of 260

SAFETY133
ESC Activation/Malfunction Indicator Light 
And ESC OFF Indicator Light 
The ESC Activation/Malfunction 
Indicator Light in the instrument cluster 
will come on when the ignition switch is 
turned to the MAR (ON/RUN) position for 
four seconds. If the ESC Activation/Malfunction 
Indicator Light comes on continuously with the 
engine running, a malfunction has been detected 
in the ESC system. If this light remains on after 
several ignition cycles, and the vehicle has been  driven several miles (km) at speeds greater than 
30 mph (48 km/h), see an authorized dealer as 
soon as possible to have the problem diagnosed 
and corrected.
The ESC Activation/Malfunction Indicator Light 
(located in the instrument cluster) starts to flash as 
soon as the tires lose traction and the ESC system 
becomes active. The ESC Activation/Malfunction 
Indicator Light also flashes when TCS is active. If 
the ESC Activation/Malfunction Indicator Light 
begins to flash during acceleration, ease up on the 
accelerator and apply as little throttle as possible. 
Be sure to adapt your speed and driving to the 
prevailing road conditions.
The ESC OFF Indicator Light indicates 
the Electronic Stability Control (ESC) is 
in a reduced mode.
NOTE:
The ESC Activation/Malfunction Indicator Light 
and the ESC OFF Indicator Light come on 
momentarily each time the ignition switch 
placed in the ON position.
Each time the ignition is placed in the ON posi -
tion, the ESC system will be on even if it was 
turned off previously.
Electronic Roll Mitigation (ERM)
ERM anticipates the potential for wheel lift by 
monitoring the driver’s steering wheel input and 
the speed of the vehicle. When ERM determines 
that the rate of change of the steering wheel angle 
and vehicle’s speed are sufficient to potentially 
cause wheel lift, it then applies the appropriate 
brake and may also reduce engine power to lessen 
the chance that wheel lift will occur.
ERM can only reduce the chance of wheel lift 
occurring during severe or evasive driving 
maneuvers; it cannot prevent wheel lift due to 
other factors, such as road conditions, leaving the 
roadway, or striking objects or other vehicles.Vehicle modifications, or failure to properly 
maintain your vehicle, may change the 
handling characteristics of your vehicle, and 
may negatively affect the performance of the 
ESC system. Changes to the steering system, 
suspension, braking system, tire type and size 
or wheel size may adversely affect ESC perfor -
mance. Improperly inflated and unevenly worn 
tires may also degrade ESC performance. Any 
vehicle modification or poor vehicle mainte -
nance that reduces the effectiveness of the 
ESC system can increase the risk of loss of 
vehicle control, vehicle rollover, personal 
injury and death.
WARNING!
WARNING!
Many factors, such as vehicle loading, road 
conditions and driving conditions, influence the 
chance that wheel lift or rollover may occur. ERM 
cannot prevent all wheel lift or rollovers, 
especially those that involve leaving the roadway 
or striking objects or other vehicles. The 
capabilities of an ERM-equipped vehicle must 
never be exploited in a reckless or dangerous 
manner which could jeopardize the user's safety 
or the safety of others.
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134SAFETY  
Hill Start Assist (HSA)  
HSA is designed to assist the driver when starting 
a vehicle from a stop on a hill. HSA will maintain 
the level of brake pressure the driver applied for a 
short period of time after the driver takes their foot 
off of the brake pedal. If the driver does not apply 
the throttle during this short period of time, the 
system will release brake pressure and the vehicle 
will roll down the hill. The system will release brake 
pressure in proportion to the amount of throttle 
applied as the vehicle starts to move in the 
intended direction of travel.
HSA ACTIVATION CRITERIA
The following criteria must be met in order for HSA 
to activate:
The vehicle must be stopped.
The vehicle must be on a 5% (approximate) 
grade or greater hill.
Gear selection matches vehicle uphill direction 
(i.e., vehicle facing uphill is in forward gear; 
vehicle backing uphill is in REVERSE gear).
HSA will work in REVERSE and all forward gears 
when the activation criteria have been met. The 
system will not activate if the vehicle is placed in 
NEUTRAL or PARK.
Traction Control System (TCS)
TCS monitors the amount of wheel spin of each of 
the driven wheels. If wheel spin is detected, brake 
pressure is applied to the slipping wheel(s) and 
engine power is reduced to provide enhanced 
acceleration and stability. A feature of the TCS 
system, 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. This feature remains 
active even if TCS and ESC are in the “Partial Off” 
mode  Ú page 132.
Trailer Sway Control (TSC) — If Equipped 
TSC uses sensors in the vehicle to recognize an 
excessively swaying trailer and will take the 
appropriate actions to attempt to stop the sway. 
The system may reduce engine power and apply 
the brake of the appropriate wheel(s) to counteract 
the sway of the trailer.
NOTE:TSC cannot stop all trailers from swaying. Always 
use caution when towing a trailer and follow the 
trailer tongue weight recommendations  
Úpage 68.
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” mode.
WARNING!
There may be situations on minor hills with a 
loaded vehicle, or while pulling a trailer, when 
the system will not activate and slight rolling may 
occur. This could cause a collision with another 
vehicle or object. Always remember the driver is 
responsible for braking the vehicle.
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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SAFETY145
(Continued)
NOTE:If the speedometer, tachometer, or any engine 
related gauges are not working, the Occupant 
Restraint Controller (ORC) may also be disabled. In 
this condition the air bags may not be ready to 
inflate for your protection. Have an authorized 
dealer service the air bag system immediately.
Front Air Bags
This vehicle has front air bags and lap/shoulder 
belts for both the driver and front passenger. The 
front air bags are a supplement to the seat belt 
restraint systems. The driver front air bag is 
mounted in the center of the steering wheel. The 
passenger front air bag is mounted in the 
instrument panel, above the glove compartment. 
The words “SRS AIRBAG” or “AIRBAG” are 
embossed on the air bag covers.
 Front Air Bag/Knee Impact Bolster Locations
Driver And Passenger Front Air Bag 
Features
The Advanced Front Air Bag system has multistage 
driver and front passenger air bags. This system 
provides output appropriate to the severity and 
type of collision as determined by the Occupant 
Restraint Controller (ORC), which may receive 
information from the front impact sensors (if 
equipped) or other system components.
The first stage inflator is triggered immediately 
during an impact that requires air bag deployment. 
A low energy output is used in less severe 
collisions. A higher energy output is used for more 
severe collisions.
WARNING!
Ignoring the Air Bag Warning Light in your 
instrument panel could mean you won’t have the 
air bag system to protect you in a collision. If the 
light does not come on as a bulb check when the 
ignition is first turned on, stays on after you start 
the vehicle, or if it comes on as you drive, have 
an authorized dealer service the air bag system 
immediately.
1 — Driver And Passenger Front Air Bags
2 — Driver Knee Impact Bolster/Supplemental 
Driver Knee Air Bag
3 — Passenger Knee Impact Bolster
WARNING!
Being too close to the steering wheel or instru
-
ment panel during front air bag deployment 
could cause serious injury, including death. Air 
bags need room to inflate. Sit back, comfort -
ably extending your arms to reach the steering 
wheel or instrument panel.
Never place a rear-facing child restraint in 
front of an air bag. A deploying passenger 
front air bag can cause death or serious injury 
to a child 12 years or younger, including a 
child in a rear-facing child restraint.
Never install a rear-facing child restraint in the 
front seat of a vehicle. Only use a rear-facing 
child restraint in the rear seat. If the vehicle 
does not have a rear seat, do not transport a 
rear-facing child restraint in that vehicle.
WARNING!
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150SAFETY  
NOTE:
Air bag covers may not be obvious in the interior 
trim, but they will open during air bag deploy -
ment.
After any collision, the vehicle should be taken 
to an authorized dealer immediately.
Enhanced Accident Response System  
In the event of an impact, if the communication 
network remains intact, and the power remains 
intact, depending on the nature of the event, the 
Occupant Restraint Controller (ORC) will determine 
whether to have the Enhanced Accident Response 
System perform the following functions:
Cut off fuel to the engine (if equipped)
Cut off battery power to the electric motor 
(if equipped)
Flash hazard lights as long as the battery has 
power
Turn on the interior lights, which remain on as 
long as the battery has power or for 15 minutes 
from the intervention of the Enhanced Accident 
Response System
Unlock the power door locks
Your vehicle may also be designed to perform any 
of these other functions in response to the 
Enhanced Accident Response System:
Turn off the Fuel Filter Heater, Turn off the HVAC 
Blower Motor, Close the HVAC Circulation Door
Cut off battery power to the:
Engine
Electric Motor (if equipped)
Electric Power Steering
Brake booster
Electric park brake
Automatic transmission gear selector
Horn
Front wiper
Headlamp washer pump (if equipped)
NOTE:After an accident, remember to cycle the ignition to 
the STOP/OFF position and remove the key from 
the ignition switch to avoid draining the battery. 
Carefully check the vehicle for fuel leaks in the 
engine compartment and on the ground near the 
engine compartment and fuel tank before 
resetting the system and starting the engine. If 
there are no fuel leaks or damage to the vehicle 
electrical devices (e.g. headlights) after an 
accident, reset the system by following the 
procedure described below. If you have any doubt, 
contact an authorized dealer.
Enhanced Accident Response System 
Reset Procedure
In order to reset the Enhanced Accident Response 
System functions after an event, the ignition switch 
must be changed from ignition AVV/START or 
MAR/RUN to ignition STOP/OFF. Carefully check 
the vehicle for fuel leaks in the engine 
compartment and on the ground near the engine 
compartment and fuel tank before resetting the 
system and starting the engine. After an accident, 
if the vehicle will not start after performing the 
reset procedure, the vehicle must be towed to an 
authorized dealer to be inspected and to have the 
Enhanced Accident Response System reset.
WARNING!
Deployed air bags and seat belt pretensioners 
cannot protect you in another collision. Have the 
air bags, seat belt pretensioners, and the seat 
belt retractor assemblies replaced by an 
authorized dealer immediately. Also, have the 
Occupant Restraint Controller System serviced 
as well.
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SAFETY169
(Continued)
(Continued)
PERIODIC SAFETY CHECKS YOU SHOULD 
M
AKE OUTSIDE THE VEHICLE
Tires 
Examine tires for excessive tread wear and uneven 
wear patterns. Check for stones, nails, glass, or 
other objects lodged in the tread or sidewall. 
Inspect the tread for cuts and cracks. Inspect 
sidewalls for cuts, cracks, and bulges. Check the 
lug nut/bold torque for tightness. Check the tires 
(including spare) for proper cold inflation pressure.
WARNING!
An improperly attached, damaged, folded, or 
stacked floor mat, or damaged floor mat 
fasteners may cause your floor mat to interfere 
with the accelerator, brake, or clutch pedals and 
cause a loss of vehicle control. To prevent 
SERIOUS INJURY or DEATH:
 ALWAYS securely attach your floor 
mat using the floor mat fasteners. DO 
NOT install your floor mat upside down 
or turn your floor mat over. Lightly pull 
to confirm mat is secured using the floor mat 
fasteners on a regular basis.
 ALWAYS REMOVE THE EXISTING 
FLOOR MAT FROM THE VEHICLE 
before installing any other floor mat. 
NEVER install or stack an additional 
floor mat on top of an existing floor mat.
ONLY install floor mats designed to fit your 
vehicle. NEVER install a floor mat that cannot 
be properly attached and secured to your 
vehicle. If a floor mat needs to be replaced, 
only use a FCA approved floor mat for the 
specific make, model, and year of your 
vehicle.
ONLY use the driver’s side floor mat on the 
driver’s side floor area. To check for interfer -
ence, with the vehicle properly parked with the 
engine off, fully depress the accelerator, the 
brake, and the clutch pedal (if present) to 
check for interference. If your floor mat inter -
feres with the operation of any pedal, or is not 
secure to the floor, remove the floor mat from 
the vehicle and place the floor mat in your 
trunk.
ONLY use the passenger’s side floor mat on 
the passenger’s side floor area.
ALWAYS make sure objects cannot fall or slide 
into the driver’s side floor area when the 
vehicle is moving. Objects can become 
trapped under accelerator, brake, or clutch 
pedals and could cause a loss of vehicle 
control.
NEVER place any objects under the floor mat 
(e.g., towels, keys, etc.). These objects could 
change the position of the floor mat and may 
cause interference with the accelerator, 
brake, or clutch pedals.
WARNING!
If the vehicle carpet has been removed and 
re-installed, always properly attach carpet to 
the floor and check the floor mat fasteners are 
secure to the vehicle carpet. Fully depress 
each pedal to check for interference with the 
accelerator, brake, or clutch pedals then 
re-install the floor mats.
It is recommended to only use mild soap and 
water to clean your floor mats. After cleaning, 
always check your floor mat has been properly 
installed and is secured to your vehicle using 
the floor mat fasteners by lightly pulling mat.
WARNING!
6
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170SAFETY  
(Continued)
Lights    
Have someone observe the operation of brake 
lights and exterior lights while you work the 
controls. Check turn signal and high beam 
indicator lights on the instrument panel.
Door Latches 
Check for proper closing, latching, and locking.
Fluid Leaks    
Check area under the vehicle after overnight 
parking for fuel, coolant, oil, or other fluid leaks. 
Also, if gasoline fumes are detected or if fuel or 
brake fluid leaks are suspected, the cause should 
be located and corrected immediately.
EXHAUST GAS    
The best protection against carbon monoxide entry 
into the vehicle body is a properly maintained 
engine exhaust system.
Whenever a change is noticed in the sound of the 
exhaust system, when exhaust fumes can be 
detected inside the vehicle, or when the underside 
or rear of the vehicle is damaged, have an 
authorized dealer inspect the complete exhaust 
system and adjacent body areas for broken, 
damaged, deteriorated, or mispositioned parts. 
Open seams or loose connections could permit 
exhaust fumes to seep into the passenger 
compartment. In addition, inspect the exhaust 
system each time the vehicle is raised for 
lubrication or oil change. Replace as required.
CARBON MONOXIDE WARNINGS 
WARNING!
Exhaust gases can injure or kill. They contain 
carbon monoxide (CO), which is colorless and 
odorless. Breathing it can make you 
unconscious and can eventually poison you. To 
avoid breathing (CO), follow these safety tips:
Do not run the engine in a closed garage or in 
confined areas any longer than needed to 
move your vehicle in or out of the area.
If you are required to drive with the trunk/lift -
gate/rear doors open, make sure that all 
windows are closed and the climate control 
BLOWER switch is set at high speed. DO NOT 
use the recirculation mode.
If it is necessary to sit in a parked vehicle with 
the engine running, adjust your heating or 
cooling controls to force outside air into the 
vehicle. Set the blower at high speed.
WARNING!
WARNING!
Carbon monoxide (CO) in exhaust gases is 
deadly. Follow the precautions below to prevent 
carbon monoxide poisoning:
Do not inhale exhaust gases. They contain 
carbon monoxide, a colorless and odorless 
gas, which can kill. Never run the engine in a 
closed area, such as a garage, and never sit in 
a parked vehicle with the engine running for 
an extended period. If the vehicle is stopped in 
an open area with the engine running for more 
than a short period, adjust the ventilation 
system to force fresh, outside air into the 
vehicle.
Guard against carbon monoxide with proper 
maintenance. Have the exhaust system 
inspected every time the vehicle is raised. 
Have any abnormal conditions repaired 
promptly. Until repaired, drive with all side 
windows fully open.
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171
(Continued)
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS  
The Hazard Warning Flashers button is located on 
the instrument panel below the radio screen.
Hazard Warning Flashers Button
Push the button to turn on the Hazard Warning 
Flashers. When the button is activated, all 
directional turn signals will flash on and off to warn 
oncoming traffic of an emergency. Push the button 
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 motorists. When you must leave 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.
JACKING AND TIRE CHANGING    PREPARATIONS FOR JACKING 
1. Park the vehicle on a firm level surface as far 
from the edge of the roadway as possible. 
Avoid icy or slippery areas.
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!
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.
WARNING!
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174IN CASE OF EMERGENCY  
(Continued)
5. Remove the wing nut prior to removing the 
retainer from the wheel.
Wing Nut
6. Lift the spare tire with one hand to give  clearance to tilt the retainer at the end of the 
cable.
Lifting Spare Tire
 7. Pull the retainer through the center of the 
wheel.
Retainer
JACKING INSTRUCTIONS
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 an auto -
matic transmission in PARK; a manual trans -
mission in REVERSE.
Chock 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 ensure that spare tires, flat or inflated, are 
securely stowed, spares must be stowed with 
the valve stem facing the ground.
The stowed spare tire should always be 
checked for security by pushing on it with your 
hand, at the location under the rear fascia/
bumper, behind the vehicle. The spare tire 
should not move when fully secured by the 
winch under the vehicle.
WARNING!
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180IN CASE OF EMERGENCY  
Insert the power plug into the vehicle power outlet 
socket. Start the vehicle engine. Push the Tire Service Kit power button on. The 
electric compressor will be turned on, sealant and 
air will inflate the tire.
Minimum 26 psi (1.8 bar) of pressure should be 
reached within 20 minutes. If the pressure has not 
been reached, turn off and remove the Tire Service 
Kit, drive the vehicle 30 feet (10 meters) back and 
forth, to better distribute the sealant inside the 
tire.
Attach the clear flexible filling tube of the 
compressor directly to the tire valve and repeat the 
inflation process.
When the correct pressure has been reached, 
start driving the vehicle to uniformly distribute the 
sealant inside the tire. After 10 minutes, stop and 
check the tire pressure. If the pressure is below 
19 psi (1.3 bar), do not drive the vehicle, as the 
tire is too damaged, contact the nearest 
authorized dealer.
If the pressure is at 19 psi (1.3 bar) or above 
repeat the inflation process to reach the correct 
tire pressure and continue driving.
Peel off the warning label from the bottle and place 
it on the dashboard as a reminder to the driver that 
a tire has been treated with Tire Service Kit.
NOTE:Replace the sealant canister prior to the expiration 
date at an authorized dealer.
Tire Service Kit Sealant Canister
A loose Tire Service Kit thrown forward in a colli -
sion or hard stop could endanger the occupants of 
the vehicle. Always stow the Tire Service Kit in the 
place provided. Failure to follow these warnings 
can result in injuries that are serious or fatal to 
you, your passengers, and others around you.
Take care not to allow the contents of Tire 
Service Kit to come in contact with hair, eyes, 
or clothing. Tire Service Kit sealant is harmful 
if inhaled, swallowed, or absorbed through the 
skin. It causes skin, eye, and respiratory irrita -
tion. Flush immediately with plenty of water if 
there is any contact with eyes or skin. Change 
clothing as soon as possible, if there is any 
contact with clothing.
Tire Service Kit Sealant solution contains 
latex. In case of an allergic reaction or rash, 
consult a physician immediately. Keep Tire 
Service Kit out of reach of children. If swal -
lowed, rinse mouth immediately with plenty of 
water and drink plenty of water. Do not induce 
vomiting! Consult a physician immediately.
WARNING!
WARNING!
Tire Service Kit is not a permanent flat tire 
repair. Have the tire inspected and repaired or 
replaced after using Tire Service Kit. Do not 
exceed 50 mph (80 km/h) until the tire is 
repaired or replaced. Failure to follow this 
warning can result in injuries that are serious or 
fatal to you, your passengers, and others around 
you. Have the tire checked as soon as possible 
at an authorized dealer.
WARNING!
The metal end fitting from Power Plug may get 
hot after use, so it should be handled carefully.
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IN CASE OF EMERGENCY181
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 instructions and 
precautions.
PREPARATIONS FOR JUMP STARTING
The battery in your vehicle is located in the front of 
the engine compartment, behind the left headlight 
assembly.
Positive (+) Battery Post Location
NOTE:The positive battery post is covered with a 
protective cap. Press on tabs, then lift up on the 
cap to gain access to the positive (+)  battery post.
Positive Battery Post Protective Cap
See below steps to prepare for jump starting:
1. Apply the parking brake, shift the automatic  transmission into PARK (P) and turn the 
ignition to STOP.
2. Turn off the heater, radio, and all electrical  accessories.
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.WARNING!
Store the sealant canister in its special 
compartment, away from sources of heat. 
Failure to follow this WARNING may result in 
sealant canister rupture and serious injury or 
death.
WARNING!
Do not attempt jump starting if the battery is 
frozen. It could rupture or explode and cause 
personal injury.
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.
7
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