SERVICING AND MAINTENANCE
224
1.6L Diesel Engine
1 — Brake Fluid Reservoir6 — Coolant Pressure Cap
2 — Engine Oil Fill Cap 7 — Coolant Pressure Bottle
3 — Battery 8 — Engine Oil Dipstick
4 — Power Distribution Center (Fuses) 9 — Engine Air Cleaner Filter
5 — Washer Fluid Reservoir
2020_JEEP_M6_UG_UK.book Page 224
SERVICING AND MAINTENANCE
230
(Continued)
Cooling System Pressure Cap
The cap must be fully tightened to prevent
loss of engine coolant (antifreeze), and to
ensure that engine coolant (antifreeze) will
return to the radiator from the coolant expan-
sion bottle/recovery tank if so equipped.
The cap should be inspected and cleaned if
there is any accumulation of foreign material
on the sealing surfaces.
Brake System
In order to assure brake system performance,
all brake system components should be
inspected periodically. Refer to the “Mainte -nance Plan” in this section for the proper
maintenance intervals.
Brake Master Cylinder
The fluid in the master cylinder should be
checked when performing under hood
services or immediately if the “Brake
Warning Light” is illuminated.
Be sure to clean the top of the master
cylinder area before removing the cap. If
necessary, add fluid to bring the fluid level
up to the requirements described on the
brake fluid reservoir. With disc brakes, fluid
level can be expected to fall as the brake
pads wear. Brake fluid level should be
checked when pads are replaced. However,
low fluid level may be caused by a leak and
a checkup may be needed.
Use only manufacturer's recommended
brake fluid. Refer to “Fluids And Lubricants”
in “Technical Specifications” for further
information.
WARNING!
Do not open hot engine cooling system.
Never add engine coolant (antifreeze)
when the engine is overheated. Do not
loosen or remove the cap to cool an over
-
heated engine. Heat causes pressure to
build up in the cooling system. To
prevent scalding or injury, do not remove
the pressure cap while the system is hot
or under pressure.
Do not use a pressure cap other than the
one specified for your vehicle. Personal
injury or engine damage may result.
WARNING!
Riding the brakes can lead to brake failure
and possibly a collision. Driving with your
foot resting or riding on the brake pedal
can result in abnormally high brake
temperatures, excessive lining wear, and
possible brake damage. You would not
have your full braking capacity in an
emergency. WARNING!
Use only manufacturer's recommended
brake fluid. Refer to “Fluids And Lubri -
cants” in “Technical Specifications” for
further information. Using the wrong
type of brake fluid can severely damage
your brake system and/or impair its
performance. The proper type of brake
fluid for your vehicle is also identified on
the original factory installed hydraulic
master cylinder reservoir.
To avoid contamination from foreign
matter or moisture, use only new brake
fluid or fluid that has been in a tightly
closed container. Keep the master
cylinder reservoir cap secured at all
times. Brake fluid in a open container
absorbs moisture from the air resulting
in a lower boiling point. This may cause
it to boil unexpectedly during hard or
prolonged braking, resulting in sudden
brake failure. This could result in a colli -
sion.
2020_JEEP_M6_UG_UK.book Page 230
231
Manual Transmission — If Equipped
Fluid Level Check
Check the fluid level by removing the fill
plug. The fluid level should be between the
bottom of the fill hole and a point not more
than 3/16 inch (4.7 mm) below the bottom
of the hole.
Add fluid, if necessary, to maintain the
proper level.
Please see your authorized dealer for service.
Automatic Transmission
Selection Of Lubricant
It is important to use the proper transmission
fluid to ensure optimum transmission perfor-
mance and life. Use only the manufacturer's
specified transmission fluid. Refer to “Fluids
And Lubricants” in “Technical Specifica -
tions” for fluid specifications. It is important
to maintain the transmission fluid at the
correct level using the recommended fluid.
NOTE:
No chemical flushes should be used in any
transmission; only the approved lubricant
should be used.
Special Additives
The manufacturer strongly recommends
against using any special additives in the transmission. Automatic Transmission Fluid
(ATF) is an engineered product and its
performance may be impaired by supple
-
mental additives. Therefore, do not add any
fluid additives to the transmission. Avoid
using transmission sealers as they may
adversely affect seals.
Fluid Level Check
The fluid level is preset at the factory and
does not require adjustment under normal
operating conditions. Routine fluid level
checks are not required; therefore the trans -
mission has no dipstick. An authorized
dealer can check your transmission fluid
level using special service tools. If you notice
fluid leakage or transmission malfunction,
visit an authorized dealer immediately to
have the transmission fluid level checked.
Operating the vehicle with an improper fluid
level can cause severe transmission damage.
Overfilling the brake fluid reservoir can
result in spilling brake fluid on hot
engine parts, causing the brake fluid to
catch fire. Brake fluid can also damage
painted and vinyl surfaces, care should
be taken to avoid its contact with these
surfaces.
Do not allow petroleum based fluid to
contaminate the brake fluid. Brake seal
components could be damaged, causing
partial or complete brake failure. This
could result in a collision.
WARNING! (Continued)
CAUTION!
Using a transmission fluid other than the
manufacturer’s recommended fluid may
cause deterioration in transmission shift
quality and/or torque converter shudder.
Refer to “Fluids And Lubricants” in
“Technical Specifications” for fluid
specifications.
CAUTION!
Do not use chemical flushes in your
transmission as the chemicals can damage
your transmission components. Such
damage is not covered by the New Vehicle
Limited Warranty.
2020_JEEP_M6_UG_UK.book Page 231
259
Chassis
ComponentFluid, Lubricant, or Genuine Part
Manual Transmission – If Equipped We recommend you use TUTELA TRANSMISSION GEARFORCE Fluid, or equivalent,
meeting the requirement of FCA Material Standard 9.55550-MZ6.
Automatic Transmission 6 Speed (FWD
Models) – If Equipped Use only TUTELA TRANSMISSION GI/VI Fluid, or equivalent, meeting the requirement of
FCA Material Standard 9.55550-AV2. Failure to use the correct fluid may affect the
function or performance of your transmission.
Automatic Transmission 9 Speed (4WD
Models) – If Equipped Use only TUTELA TRANSMISSION AS8 Fluid, or equivalent, meeting the requirements of
FCA Material Standard 9.55550-AV5. Failure to use the correct fluid may affect the
function or performance of your transmission.
Power Transfer Unit (PTU) – If Equipped We recommended you use TUTELA TRANSMISSION B-5X Fluid, or equivalent, SAE 75W-90 (API GL-5) meeting the requirement of FCA Material Standard 9.55550-DA6.
Rear Differential (RDM) – If Equipped We recommended you use TUTELA TRANSMISSION COMPAQ DRIVE Fluid, or equivalent, SAE 75W-90 (API GL-5) meeting the requirement of FCA Material Standard 9.55550-DA7.
Brake Master Cylinder We recommend you use TUTELA TOP4/S, FMVSS no. 116 DOT 4, ISO 4925 SAE J1704. If
DOT 4 brake fluid is not available then DOT 3, SAE J1703 brake fluid, or equivalent, is
acceptable.
If using DOT 4 brake fluid, the fluid must be changed every 24 months regardless of
mileage.
Refrigerant Refrigerant R134a — If Equipped
Charge Amount:
All engines — 567 g (1.25 lb)
Refrigerant R-1234yf — If Equipped
Charge Amount:
All engines — 482 g (1.063 lb)
2020_JEEP_M6_UG_UK.book Page 259
317
INDEX
A
Accessories ....................................... 260Mopar ........................................... 260
Active Speed Limiter .......................... 149
Adaptive Cruise Control (ACC) (Cruise Con -
trol) .................................................. 151
Adding Fuel ...................................... 167
Additives, Fuel .................................. 250
Air Bag ............................................... 99 Air Bag Operation ........................... 101Air Bag Warning Light ....................... 98
Enhanced Accident Response .. 111 , 211
Event Data Recorder (EDR) ............. 211
If Deployment Occurs ..................... 110
Knee Impact Bolsters ..................... 107
Maintaining Your Air Bag System ..... 113
Maintenance .................................. 113
Redundant Air Bag Warning Light ...... 99
Side Air Bags ................................. 107
Transporting Pets ........................... 127
Air Bag Light ..........................59 , 98 , 129
Air Conditioner Maintenance ............... 227
Air Conditioner Refrigerant ................. 227
Air Conditioner System ....................... 227
Air Conditioning................................... 43
Air Conditioning Filter .................. 44 , 228
Air Conditioning, Operating Tips ............ 44 Air Pressure
Tires ............................................. 233
Alarm Arm The System .............................. 18
Disarm The System .......................... 18
Security Alarm ............................18 , 62
Alarm System Security Alarm ............................18 , 19
Android Auto..............................271 , 302
Antifreeze (Engine Coolant) ................ 254
Anti-Lock Brake System (ABS) .............. 72
Anti-Lock Warning Light ....................... 62
Apple CarPlay ............................272 , 303
Arming System Security Alarm ................................. 18
Assist, Hill Start .................................. 78
Audio Jack .................................270 , 276
Audio Systems (Radio) ................262 , 264
Auto Down Power Windows ................... 45
Auto Up Power Windows ...................... 45
Automatic Headlights .......................... 32
Automatic High Beams ........................ 32
Automatic Temperature Control (ATC) ... 43
Automatic Transaxle .......................... 139 Automatic Transmission......................140
Adding Fluid ..................................259
Fluid Level Check ...........................231
Fluid Type ............................. 231 , 259
Special Additives ............................231
Auxiliary (Power Outlet) ........................52
Auxiliary Electrical Outlet (Power
Outlet) ................................................52
Axle Lubrication .................................259
B
Battery ........................................ 60 , 226
Charging System Light ......................60
Belts, Seat ........................................128
Blind Spot Monitoring ..........................80
Brake Assist System ....................... 73 , 84
Brake Control System, Electronic ...........73
Brake Fluid .......................................259
Brake System ....................................230 Fluid Check ........................... 230 , 259
Master Cylinder ..............................230
Parking ..........................................134 Warning Light...................................59
Brake/Transmission Interlock...............140
Bulb Replacement .............................177
Bulbs, Light ......................................130
2020_JEEP_M6_UG_UK.book Page 317
318
INDEX
C
Camera, Rear .................................... 164
Capacities, Fluid................................ 254
Caps, FillerFuel .............................................. 165
Oil (Engine) ................................... 222
Radiator (Coolant Pressure) ............. 230
Car Washes ....................................... 241
Carbon Monoxide Warning .......... 128 , 252
Certification Label ............................. 171
Chains, Tire ...................................... 239
Change Oil Indicator ............................ 56
Changing A Flat Tire .................. 189 , 232
Checking Your Vehicle For Safety ........ 128
Checks, Safety .................................. 128
Child Safety Locks ............................... 23
Cleaning Windshield Wiper Blades ................ 228
Climate Control ................................... 36
Clock Settings ................................... 263
Compact Spare Tire ........................... 238
Computer, Trip/Travel ........................... 59
Cooling Pressure Cap (Radiator Cap) .... 230
Cooling System .................................. 229 Coolant Level ................................. 229
Cooling Capacity ............................ 254Pressure Cap ................................. 230
Radiator Cap.................................. 230
Selection Of Coolant (Antifreeze) ........................ 254 , 255 Cruise Light ............................. 69
, 70 , 71
Customer Assistance .......................... 305
Customer Programmable Features ....... 284
Cybersecurity .................................... 262
D
Daytime Running Lights ..................31 , 32
Dealer Service ................................... 227
Defroster, Windshield......................... 129
Diagnostic System, Onboard ................. 71
Diesel Display Messages ............................. 57
Diesel Fuel ....................................... 252
Diesel Fuel Requirements .................. 252
Dimmer Switch Headlight ...................................31 , 32
Dipsticks Oil (Engine) ................................... 225
Disabled Vehicle Towing .................... 207
Do Not Disturb ...........................293 , 302
Door Ajar .......................................60 , 61
Door Ajar Light ...............................60 , 61
Drag And Drop Menu ......................... 268
Driver’s Seat Back Tilt ......................... 24
E
Electric Brake Control System............... 73 Anti-Lock Brake System.................... 72Traction Control System.................... 80
Electric Parking Brake ....................... 134 Electrical Outlet, Auxiliary (Power
Outlet) ................................................52
Electronic Speed Control (Cruise
Control) .............................................150
Electronic Stability Control (ESC) ..........74
Electronic Throttle Control Warning
Light ...................................................61
Emergency Gas Can Refueling .............204
Emergency, In Case Of Hazard Warning Flasher ..................177
Jacking .................................. 189 , 232
Jump Starting ................................202
Tow Hooks .....................................209
Towing ..........................................207
Emissions..........................................260
Engine ..............................................222 Checking Oil Level ..........................225
Coolant (Antifreeze) ........................255
Cooling ..........................................229Exhaust Gas Caution ............... 128 , 252
Jump Starting ................................202
Oil ........................................ 254 , 255
Oil Filler Cap ..................................222
Oil Selection ..................................254
Overheating....................................204
Starting .........................................131
Enhanced Accident Response
Feature ..................................... 111 , 211
Ethanol .............................................250
Exhaust Gas Cautions ................. 128 , 252
2020_JEEP_M6_UG_UK.book Page 318
319
Exhaust System ......................... 128, 228
Exterior Lighting .................................. 31
Exterior Lights ............................. 31 , 130
F
Filters Air Conditioning ....................... 44 , 228
Engine Oil ..................................... 255
Flashers Hazard Warning ............................. 177Turn Signals ................. 31 , 33 , 69 , 130
Flash-To-Pass ................................ 31 , 32
Fluid Capacities................................. 254
Fluid Leaks ....................................... 130
Fluid Level Checks Brake ............................................ 230
Engine Oil ..................................... 225
Fluid, Brake ...................................... 259
Fluids And Lubricants ........................ 255
Fog Lights ................................31 , 33 , 68
Fog Lights, Rear .................................. 33
Fold-Flat Seats .................................... 24
Folding Rear Seats ............................... 24
Forward Collision Warning .................... 84
Freeing A Stuck Vehicle ..................... 206
Fuel ......................................... 250 , 252
Additives ....................................... 250
Consumption ................................. 260 Ethanol ......................................... 250
Filler Cap (Gas Cap) ....................... 165
Gasoline........................................ 250
Light............................................... 63
Materials Added............................. 250
Methanol....................................... 250
Octane Rating................. 250
, 252 , 255
Specifications................................ 255
Tank Capacity................................ 254
Fueling ............................................. 167
Fuses ............................................... 182
G
Gas Cap (Fuel Filler Cap) ................... 165
Gasoline, (Fuel) ................................. 250
Gear Ranges ..............................137 , 141
Gear Selector Override ....................... 205
Glass Cleaning .................................. 243
Gross Axle Weight Rating ................... 171
Gross Vehicle Weight Rating ............... 171
H
Hazard Warning Flashers .................... 177
Head Restraints .................................. 28
Head Rests ......................................... 28
Headlights .......................................... 31 Automatic ....................................... 32
Delay .............................................. 32 High Beam/Low Beam Select
Switch ................................... 31 , 32
Leveling...........................................34 Lights On Reminder .................... 31 , 33
Passing...................................... 31 , 32
Switch .............................................31 Time Delay................................. 31 , 32
High Beam/Low Beam Select (Dimmer)
Switch ................................................32
Hill Descent Control .............................77
Hill Descent Control Indicator ...............77
Hill Start Assist....................................78
Hood Prop ...........................................49
Hood Release ......................................49
I
Ignition ...............................................14 Switch .............................................14
Instrument Cluster ...............................56 Descriptions .....................................69
Display ............................................55Menu Items .....................................56
Instrument Panel Lens Cleaning ..........243
Interior Appearance Care ....................242
Interior Fuses ....................................186
Introduction ..........................................1
Inverter Power ..............................................53
2020_JEEP_M6_UG_UK.book Page 319
320
INDEX
J
Jack Location .................................... 189
Jack Operation ...................189, 190 , 232
Jacking Instructions ........................... 190
Jump Starting ................................... 202
K
Key Fob Arm The Alarm................................. 18
Disarm The Alarm ............................ 18Remote Keyless Entry ....................... 13
Keyless Enter-N-Go ........................ 13 , 21
Keys ................................................... 13 Replacement ................................... 14
L
Lane Change And Turn Signals........ 31 , 33
Lane Change Assist .............................. 31
LaneSense ........................................ 162
Lap/Shoulder Belts .............................. 93
Latches............................................. 130 Hood ............................................... 49
Leaks, Fluid ...................................... 130
Life Of Tires ...................................... 235
Liftgate ............................................... 50
Liftgate Window Wiper/Washer .............. 36
Light Bulbs ....................................... 130 Lights............................................... 130
Air Bag .............................. 59 , 98 , 129
Automatic Headlights ....................... 32
Battery Saver ................................... 34
Brake Assist Warning........................ 77
Brake Warning ................................. 59
Bulb Replacement ......................... 177
Cruise .................................. 69 , 70 , 71
Daytime Running ........................31 , 32
Dimmer Switch, Headlight ...........31 , 32
Electronic Stability Program (ESP) Indica- tor............................................... 61
Engine Temperature Warning ............ 61
Exterior ......................................... 130
Fog............................................33 , 68
Headlight Switch ............................. 31
Headlights....................................... 31
Headlights On Reminder................... 33 High Beam ...................................... 32
High Beam/Low Beam Select .......31 , 32
Hill Descent Control Indicator ........... 77
Instrument Cluster ........................... 31
Lights On Reminder ....................31 , 33
Low Fuel ......................................... 63
Malfunction Indicator (Check Engine) ....................................... 64
Park ............................................... 69
Passing ......................................31 , 32 Seat Belt Reminder ..........................62
Security Alarm .................................62
Service ..........................................177
Tire Pressure Monitoring (TPMS) ........86
Traction Control................................77
Turn Signals..................31 , 33 , 69 , 130
Warning Instrument Cluster Descriptions ........................... 61 , 69
Loading Vehicle .................................171
Locks Child Protection ...............................23
Steering Wheel .................................16
Low Tire Pressure System .....................86
Lug Nuts/Bolts ...................................244
Luggage Carrier ....................................54
M
Maintenance........................................48
Maintenance Free Battery ...................226
Maintenance Schedule .......................212
Malfunction Indicator Light (Check
Engine) ...............................................64
Manual Transmission.................. 137 , 231
Fluid Level Check ...........................231
Shift Speeds ..................................137
Memory Feature (Memory Seats)............25
Memory Seat .......................................25
2020_JEEP_M6_UG_UK.book Page 320