2019 RAM CHASSIS CAB run flat

SERVICING AND MAINTENANCE 457
Run Flat Tires — If Equipped
Run Flat tires allow you the capability to drive 50 miles
(80 km) at 50 mph (80 km/h) after a rapid loss of inflation
pressure. This rapid loss of inflation is referred to as the Run
Flat mode. A Run Flat mode occurs when the tire inflation
pressure is of/or below 14 psi (96 kPa). Once a Run Flat tire
reaches the run flat mode it has limited driving capabilities
and needs to be replaced immediately. A Run Flat tire is not
repairable. When a run flat tire is changed after driving with
underinflated tire condition, please replace the TPM sensor
as it is not designed to be reused when driven under run flat
mode (14 psi (96 kPa)) condition.
NOTE:
TPM Sensor must be replaced after driving the vehicle on a
flat tire condition.
It is not recommended driving a vehicle loaded at full
capacity or to tow a trailer while a tire is in the run flat mode.
See the tire pressure monitoring section for more informa -
tion. Tire Spinning
When stuck in mud, sand, snow, or ice conditions, do not
spin your vehicle's wheels above 30 mph (48 km/h) or for
longer than 30 seconds continuously without stopping.
Refer to “Freeing A Stuck Vehicle” in “In Case Of Emer -
gency” for further information.
WARNING!
Fast spinning tires can be dangerous. Forces generated
by excessive wheel speeds may cause tire damage or
failure. A tire could explode and injure someone. Do not
spin your vehicle's wheels faster than 30 mph (48 km/h)
for more than 30 seconds continuously when you are
stuck, and do not let anyone near a spinning wheel, no
matter what the speed.
7

470 SERVICING AND MAINTENANCE
STORING THE VEHICLE
If you are storing your vehicle for more than 21 days, we
recommend that you take the following steps to minimize
the drain on your vehicle's battery:
• Disconnect the negative cable from battery.
• Any time you store your vehicle or keep it out of service
(i.e., vacation) for two weeks or more, run the air condi -
tioning system at idle for about five minutes in the fresh air
and high blower setting. This will ensure adequate system
lubrication to minimize the possibility of compressor
damage when the system is started again. BODYWORK
Protection From Atmospheric Agents
Vehicle body care requirements vary according to
geographic locations and usage. Chemicals that make roads
passable in snow and ice and those that are sprayed on trees
and road surfaces during other seasons are highly corrosive
to the metal in your vehicle. Outside parking, which exposes
your vehicle to airborne contaminants, road surfaces on
which the vehicle is operated, extreme hot or cold weather
and other extreme conditions will have an adverse effect on
paint, metal trim, and underbody protection.
The following maintenance recommendations will enable
you to obtain maximum benefit from the corrosion resistance
built into your vehicle.WARNING!
The temperature grade for this tire is established for a
tire that is properly inflated and not overloaded.
Excessive speed, under-inflation, or excessive loading,
either separately or in combination, can cause heat
buildup and possible tire failure.

592
Center High Mounted Stop Light......................................... 377
Center Seat Storage Compartment ....................................... 106
Changing A Flat Tire .............................................................. 390
Chart, Tire Sizing .................................................................... 446
Check Engine Light (Malfunction Indicator Light) ........... 159
Checking Your Vehicle For Safety ........................................ 240
Checks, Safety .......................................................................... 240
Child Restraint ........................................................................ 214
Child Restraints
Booster Seats ........................................................................ 218
Child Seat Installation ................................................ 229, 231
How To Stow An unused ALR Seat Belt ......................... 227
Infant And Child Restraints .............................................. 216
Locating The LATCH Anchorages ................................... 224
Lower Anchors And Tethers For Children ..................... 220
Older Children And Child Restraints .............................. 217
Seating Positions ................................................................. 219
Clean Air Gasoline .................................................................. 479
Cleaning
Wheels................................................................................... 464
Climate Control ......................................................................... 77
Automatic ............................................................................... 81
Manual .................................................................................... 77
Cold Weather Operation........................................................ 250
Compact Disc (CD) Maintenance ......................................... 584
Compact Spare Tire ................................................................ 462 Contract, Service......................................................................587
Cooling Pressure Cap (Radiator Cap) ..................................436
Cooling System ........................................................................433
Adding Coolant (Antifreeze) .............................................435
Coolant Level ...............................................................434, 437
Cooling Capacity .................................................................483
Disposal Of Used Coolant..................................................436
Drain, Flush, And Refill .....................................................434
Inspection ............................................................................. 437
Points To Remember ........................................................... 437
Pressure Cap ........................................................................436
Radiator Cap ........................................................................436
Selection Of Coolant (Antifreeze) .............................434, 484
Corrosion Protection ...............................................................470
Cruise Control (Speed Control) ....................................285, 288
Cruise Light ............................................................................. 157
Cupholders...............................................................................115
Customer Assistance ..............................................................585
Cybersecurity ...........................................................................488
D
Daytime Running Lights ..........................................................67
Dealer Service ..........................................................................417
Defroster, Rear Window ..........................................................77
Defroster, Windshield ......................................................77, 241
Delay (Intermittent) Wipers ....................................................75
Diagnostic System, Onboard .................................................158