2016 RAM CHASSIS CAB ECO mode

MAINTAINING YOUR VEHICLECONTENTS  ENGINE COMPARTMENT — 6.4L ......... .563
 ONBOARD DIAGNOSTIC SYSTEM (OBD II) . . .564
▫ Onboard Diagnostic System (OBD II)
Cybersecurity ....................... .564
▫ Loose Fuel Filler Cap Message ........... .565
 EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ......................... .566
 REPLACEMENT PARTS ................. .567
 DEALER SERVICE ..................... .568
 MAINTENANCE PROCEDURES .......... .568 ▫ Engine Oil ......................... .569
▫ Engine Oil Filter ..................... .572
▫ Engine Air Cleaner Filter ............... .572
▫ Accessory Drive Belt Inspection .......... .575
▫ Maintenance-Free Battery .............. .577
▫ Air Conditioner Maintenance ............ .578
▫ Front Prop Shaft Lubrication — Four-Wheel Drive
Models ............................ .579
▫ Body Lubrication .................... .580
▫ Windshield Wiper Blades .............. .5817

normal. Any belt with cracks running along a rib must be
replaced. Also have the belt replaced if it has excessive
wear, frayed cords or severe glazing.
Conditions that would require replacement:
• Rib chunking (one or more ribs has separated from belt
body) • Rib or belt wear
• Longitudinal belt cracking (cracks between two ribs)
• Belt slips
• “Groove jumping  (belt does not maintain correct
position on pulley)
• Belt broken (note: identify and correct problem before
new belt is installed)
• Noise (objectionable squeal, squeak, or rumble is
heard or felt while drive belt is in operation)
Some conditions can be caused by a faulty component
such as a belt pulley. Belt pulleys should be carefully
inspected for damage and proper alignment.
Belt replacement on some models requires the use of
special tools, we recommend having your vehicle ser-
viced at an authorized dealer.Accessory Belt (Serpentine Belt)576 MAINTAINING YOUR VEHICLE

CAUTION!Do not use chemical flushes in your air conditioning
system as the chemicals can damage your air condi-
tioning components. Such damage is not covered by
the New Vehicle Limited Warranty.
Refrigerant Recovery And Recycling R134a — If
Equipped
R-134a Air Conditioning Refrigerant is a hydrofluoro-
carbon (HFC) that is endorsed by the Environmental
Protection Agency and is an ozone-saving product. How-
ever, the manufacturer recommends that air conditioning
service be performed by authorized dealer or other
service facilities using recovery and recycling equipment.
NOTE: Use only manufacturer approved A/C system
PAG compressor oil and refrigerants. Refrigerant Recovery And Recycling HFO 1234yf
— If Equipped
HFO 1234yf Air Conditioning Refrigerant is a hydro-
fluoolefine HFO that is endorsed by the Environmental
Protection Agency and is an ozone-saving product with a
low GWP (Global Warming Potential). However, the
manufacturer recommends that air conditioning service
be performed by authorized dealer or other service
facilities using recovery and recycling equipment.
NOTE: Use only manufacturer approved A/C system
PAG compressor oil and refrigerants.
Front Prop Shaft Lubrication — Four-Wheel Drive
Models
Lubricate the front driveshaft grease fitting at each oil
change. The grease fitting is located at the rear of the
front driveshaft, near the centering mechanism of double
cardan joint. Refer to the “Maintenance Schedule” for the 7MAINTAINING YOUR VEHICLE 579