2020 Ram ProMaster City warning

238 IN CASE OF EMERGENCY
NOTE:
Push the “ESC OFF” switch, to place the Electronic Stability
Control (ESC) system in “Partial Off” mode, before rocking
the vehicle. Refer to “Electronic Brake Control System” in
“Safety” for further information. Once the vehicle has been
freed, push the “ESC OFF” switch again to restore “ESC On”
mode.
TOWING A DISABLED VEHICLE
This section describes procedures for towing a disabled
vehicle using a commercial towing service.
WARNING!
Fast spinning tires can be dangerous. Forces generated
by excessive wheel speeds may cause damage, or even
failure, of the axle and tires. A tire could explode and
injure someone. Do not spin your vehicle's wheels faster
than 30 mph (48 km/h) or for longer than 30 seconds
continuously without stopping when you are stuck and
do not let anyone near a spinning wheel, no matter what
the speed.
CAUTION!
• When “rocking” a stuck vehicle by shifting between DRIVE and REVERSE, do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain damage may
result.

• Revving the engine or spinning the wheels too fast may lead to transmission overheating and failure. It can also damage
the tires. Do not spin the wheels above 30 mph (48 km/h)
while in gear (no transmission shifting occurring).

Towing Condition Wheel OFF The Ground ALL MODELS
Flat Tow NONENOT ALLOWED
Wheel Lift Or Dolly Tow Front
OK
Rear NOT ALLOWED
Flatbed ALLBEST METHOD
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244 SERVICING AND MAINTENANCE
(Continued)
Replace spark plugs.3X
Flush and replace the engine coolant at 10 years or
150,000 miles (240,000 km) whichever comes first. X
X
Inspect and replace PCV valve if necessary. X
1. Change engine air filter every 10,000 miles (16,000 km) if operated in dusty and off road environment.
2. The brake fluid must be changed every 24 months. This interval is time based only, mileage intervals do not apply.
3. The spark plug change interval is mileage based only, yearly intervals do not apply.
Mileage or time passed (whichever comes first)
20,000
30,000
40,00050,00060,00070,00080,00090,000
100,000
110,000120,000130,000
140,000150,000
Or Years: 2 3 4 56
7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000 48,000
64,00080,00096,000
112,000 128,000144,000160,000
176,000192,000208,000
224,000240,000
WARNING!
• You can be badly injured working on or around a motor vehicle. Do only service work for which you have the
knowledge and the right equipment. If you have any
doubt about your ability to perform a service job, take
your vehicle to a competent mechanic.
• Failure to properly inspect and maintain your vehiclecould result in a component malfunction and effect
vehicle handling and performance. This could cause an
accident.
WARNING! (Continued)
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SERVICING AND MAINTENANCE 247
(Continued)
To prevent freeze-up of your windshield washer system in
cold weather, select a solution or mixture that meets or
exceeds the temperature range of your climate. This rating
information can be found on most washer fluid containers.
Maintenance-Free Battery
Your vehicle is equipped with a maintenance-free battery.
You will never have to add water, nor is periodic mainte-
nance required.
WARNING!
Commercially available windshield washer solvents are
flammable. They could ignite and burn you. Care must
be exercised when filling or working around the washer
solution.
WARNING!
• Battery fluid is a corrosive acid solution and can burn or even blind you. Do not allow battery fluid to contact
your eyes, skin, or clothing. Do not lean over a battery
when attaching clamps. If acid splashes in eyes or on
skin, flush the area immediately with large amounts of
water. Refer to “Jump Starting Procedure” in “In Case
Of Emergency” for further information.
• Battery gas is flammable and explosive. Keep flame orsparks away from the battery. Do not use a booster
battery or any other booster source with an output
greater than 12 Volts. Do not allow cable clamps to
touch each other.
• Battery posts, terminals, and related accessories contain lead and lead compounds. Wash hands after handling.
CAUTION!

• It is essential when replacing the cables on the battery that the positive cable is attached to the positive post and the
negative cable is attached to the negative post. Battery
posts are marked positive (+) and negative (-) and are
identified on the battery case. Cable clamps should be
tight on the terminal posts and free of corrosion.

• If a “fast charger” is used while the battery is in the vehicle, disconnect both vehicle battery cables before
connecting the charger to the battery. Do not use a “fast
charger” to provide starting voltage.
WARNING! (Continued)
7
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248 SERVICING AND MAINTENANCE
Pressure Washing
DEALER SERVICE
An authorized dealer has the qualified service personnel,
special tools, and equipment to perform all service opera-
tions in an expert manner. Service Manuals are available
which include detailed service information for your vehicle.
Refer to these Service Manuals before attempting any proce -
dure yourself.
NOTE:
Intentional tampering with emissions control systems may
void your warranty and could result in civil penalties being
assessed against you.
Engine Oil
Change Engine Oil
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance. Refer
to the “Maintenance Plan” in this chapter for further infor -
mation.
NOTE:
Under no circumstances should oil change intervals exceed
10,000 miles (16,000 km), 12 months or 350 hours of engine
run time, whichever comes first. The 350 hours of engine run
or idle time is generally only a concern for fleet customers.
CAUTION!
Cleaning the engine compartment with a high pressure
washer is not recommended. Precautions have been
taken to safeguard all parts and connections however,
the pressures generated by these machines is such that
complete protection against water ingress cannot be
guaranteed.
WARNING!
You can be badly injured working on or around a motor
vehicle. Only do service work for which you have the
knowledge and the proper equipment. If you have any
doubt about your ability to perform a service job, take
your vehicle to a competent mechanic.
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250 SERVICING AND MAINTENANCE
Materials Added To Engine Oil
The manufacturer strongly recommends against the addi-
tion of any additives (other than leak detection dyes) to the
engine oil. Engine oil is an engineered product and its perfor -
mance may be impaired by supplemental additives.
Disposing Of Used Engine Oil And Oil Filters
Care should be taken in disposing of used engine oil and oil
filters from your vehicle. Used oil and oil filters, indiscrimi -
nately discarded, can present a problem to the environment.
Contact an authorized dealer, service station or govern -
mental agency for advice on how and where used oil and oil
filters can be safely discarded in your area.
Engine Oil Filter
The engine oil filter should be replaced with a new filter at
every engine oil change.
Engine Oil Filter Selection

This manufacturer's engines have a full-flow type disposable oil
filter. Use a filter of this type for replacement. The quality of
replacement filters varies considerably. Only high quality filters
should be used to ensure most efficient service. Mopar engine
oil filters are high quality oil filters and are recommended.

Engine Air Cleaner Filter
Refer to the “Maintenance Plan” in this chapter for the
proper maintenance intervals.
NOTE:
Be sure to follow the “Severe Duty Conditions” maintenance
interval if applicable.
Engine Air Cleaner Filter Selection
The quality of replacement engine air cleaner filters varies
considerably. Only high quality filters should be used to
ensure most efficient service. Mopar engine air cleaner filters
are a high quality filter and are recommended.
WARNING!
The air induction system (air cleaner, hoses, etc.) can
provide a measure of protection in the case of engine
backfire. Do not remove the air induction system (air
cleaner, hoses, etc.) unless such removal is necessary for
repair or maintenance. Make sure that no one is near the
engine compartment before starting the vehicle with the
air induction system (air cleaner, hoses, etc.) removed.
Failure to do so can result in serious personal injury.
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SERVICING AND MAINTENANCE 251
Air Conditioner Maintenance
For best possible performance, your air conditioner should
be checked and serviced by an authorized dealer at the start
of each warm season. This service should include cleaning of
the condenser fins and a performance test. Drive belt tension
should also be checked at this time.Refrigerant Recovery And Recycling — R–1234yf
R–1234yf Air Conditioning Refrigerant is a hydrofluo-
roolefin (HFO) that is endorsed by the Environmental
Protection Agency and is an ozone-friendly substance with a
low global-warming potential. The manufacturer recom -
mends that air conditioning service be performed by an
authorized dealer using recovery and recycling equipment.
NOTE:
Use only manufacturer approved A/C system PAG
compressor oil, and refrigerants.
WARNING!
• Use only refrigerants and compressor lubricants approved by the manufacturer for your air condi -
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other unap -
proved refrigerants or lubricants can cause the system
to fail, requiring costly repairs. Refer to Warranty Infor -
mation Book, for further warranty information.
• The air conditioning system contains refrigerant under high pressure. To avoid risk of personal injury or
damage to the system, adding refrigerant or any repair
requiring lines to be disconnected should be done by
an experienced technician.
CAUTION!
Do not use chemical flushes in your air conditioning
system as the chemicals can damage your air
conditioning components. Such damage is not covered
by the New Vehicle Limited Warranty.
7
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254 SERVICING AND MAINTENANCE
(Continued)
Under normal operating conditions, the catalytic converter
will not require maintenance. However, it is important to
keep the engine properly tuned to ensure proper catalyst
operation and prevent possible catalyst damage.
NOTE:
Intentional tampering with emissions control systems can
result in civil penalties being assessed against you.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe and
abnormal catalyst overheating. If this occurs, stop the
vehicle, turn off the engine and allow it to cool. Service,
including a tune-up to manufacturer's specifications, should
be obtained immediately.
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 eventu -
ally poison you. To avoid breathing CO, refer to “Safety
Tips” in “Safety” for further information.
• A hot exhaust system can start a fire if you park over materials that can burn. Such materials might be grass
or leaves coming into contact with your exhaust system.
Do not park or operate your vehicle in areas where your
exhaust system can contact anything that can burn.
CAUTION!
• The catalytic converter requires the use of unleaded fuel only. Leaded gasoline will destroy the effective -
ness of the catalyst as an emissions control device and
may seriously reduce engine performance and cause
serious damage to the engine.
• Damage to the catalytic converter can result if your vehicle is not kept in proper operating condition. In the
event of engine malfunction, particularly involving
engine misfire or other apparent loss of performance,
have your vehicle serviced promptly. Continued opera -
tion of your vehicle with a severe malfunction could
cause the converter to overheat, resulting in possible
damage to the converter and vehicle. CAUTION!
(Continued)
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SERVICING AND MAINTENANCE 255
(Continued)
To minimize the possibility of catalytic converter damage:
• Do not interrupt the ignition when the transmission is ingear and the vehicle is in motion.
• Do not try to start the vehicle by pushing or towing the vehicle.
• Do not idle the engine with any ignition components disconnected or removed, such as when diagnostic testing,
or for prolonged periods during very rough idle or
malfunctioning operating conditions.
Cooling System
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every
12 months (before the onset of freezing weather, where
applicable). If the engine coolant (antifreeze) is dirty, the
system should be drained, flushed, and refilled with fresh
OAT coolant (conforming to MS.90032) by an authorized
dealer. Check the front of the A/C condenser for any accu-
mulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the face
of the condenser.
Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts, and tightness of the connection at the
coolant recovery bottle and radiator. Inspect the entire
system for leaks. DO NOT REMOVE THE COOLANT PRES -
SURE CAP WHEN THE COOLING SYSTEM IS HOT.
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 open a cooling system pressure cap when the
radiator or coolant bottle is hot.
• Keep hands, tools, clothing, and jewelry away from the radiator cooling fan when the hood is raised. The fan
starts automatically and may start at any time, whether
the engine is running or not.
• When working near the radiator cooling fan, discon -
nect the fan motor lead or turn the ignition to the OFF
mode. The fan is temperature controlled and can start at
any time the ignition is in the ON mode.
WARNING! (Continued)
7
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