Fluid
Use only Mopar® ZF 8 & 9 Speed Automatic Transmission Fluid (ATF) or equivalent. Failure to use the correct fluid may affect the function or performance of your transmission.
Applies to: Automatic Transmission - If Equipped
Owner’s manual specs
2021 Jeep Wrangler Specs: Fluids, Maintenance Schedule & Fuse Box
Figures for the 2021 Jeep Wrangler, copied from Jeep’s own owner’s manual. Every one links to the manual page it came from.
From the manufacturer’s manuals. Every figure here is copied from the manufacturer's own manual, with a link to the page it came from. Where a manual is unclear or contradicts itself, we leave the figure out.
Engines in this manual: 2.0L, 3.0L. Figures that differ by engine say which engine they are for.
Fluids & capacities
All engines
Fluid
We recommend you use Mopar® ATF+4 Automatic Transmission Fluid.
Applies to: Manual Transmission - If Equipped
Fluid
We recommend you use Mopar® Antifreeze/Coolant 10 Year/150,000 Mile (240,000 km) Formula OAT (Organic Additive Technology) or equivalent meeting the requirements of the manufacturer Material Standard MS.90032.
Applies to: Engine Coolant
Fluid
We recommend you use a Mopar® Engine Oil Filter. If a Mopar® Engine Oil Filter is unavailable only use filters that meet or exceed SAE/USCAR-36 Filter Performance Requirements.
Applies to: Engine Oil Filter
2.0L
Fluid
MS-13340
SAE 5W-30
We recommend you use Mopar® API SP/GF-6A Certified SAE 5W-30 Full Synthetic Engine Oil which meets the requirements of the manufacturer Material Standard MS-13340. Equivalent full synthetic SAE 5W-30 engine oil can be used if it meets API SP/GF-6A Certification. If API SP/GF-6A or equivalent oil is unavailable then please contact a local dealership for recommendation.
Applies to: Engine Oil - 2.0L Engine
3.0L
Fluid
MS-12991
We recommend you use 5W-40 synthetic engine oil such as Mopar® that meets the manufacturer Material Standard MS-12991 and the API SN engine oil category is required.
Applies to: Engine Oil - 3.0L Diesel Engine
Maintenance schedule
Maintenance Plan
| Service | When |
|---|---|
| Replace cabin air filter. | Every 20,000 mi |
| Replace engine air cleaner filter. | Every 30,000 mi |
| Replace the cabin air filter. | Every 20,000 mi |
Oil life & reset procedures
Engine oil life / oil change indicator reset
Your vehicle may be equipped with an engine oil change
Applies to: Your vehicle may be equipped with an engine oil change
Before you start
- Without pushing the brake pedal, place the ignition in the ON/RUN mode (do not start the engine).
Steps
- Without pushing the brake pedal, place the ignition in the ON/RUN mode (do not start the engine).
- Navigate to "Oil Life" submenu in "Vehicle Info" in the instrument cluster display.
- Push and hold the OK button until the gauge resets to 100%.
Engine oil life / oil change indicator reset
Secondary Method For Oil Change Reset Procedure
Applies to: Secondary Method For Oil Change Reset Procedure
Before you start
- Without pushing the brake pedal, place the ignition in the ON/RUN position (do not start the engine).
Steps
- Without pushing the brake pedal, place the ignition in the ON/RUN position (do not start the engine).
- Fully press the accelerator pedal, slowly, three times within ten seconds.
- Without pushing the brake pedal, place the ignition in the OFF position.
If the indicator message illuminates when you start the vehicle, the oil change indicator system did not reset.
Fuse box locations & fuse chart
Power Distribution Center Location - Gas
Where to find it
Power Distribution Center (PDC) The Power Distribution Center is located in the engine compartment near the battery.
What each fuse protects
| Fuse | Amps | Protects | Source |
|---|---|---|---|
| F01 | — | Spare | p.321 |
| F02 | 40A | Starter | p.321 |
| F03 | 5A | Intelligent Battery Sensor (IBS) | p.321 |
| F04 | 20A | Fuel Pump MTR/FPCM | p.321 |
| F05 | 5A | Security Gateway | p.321 |
| F06 | — | Spare | p.322 |
| F07 | 15A | Low Temp Radiator Cooling Pump (LTR) * | p.322 |
| F08 | 15A | Trans Control Module TCM-8HP CYGNUS | p.322 |
| F09 | — | Spare Key Ignition Node (KIN)/Radio Frequency Hub (RF HUB)/Electric | p.322 |
| F10 | 15A | Steering Column Lock (ESCL) | p.322 |
| F100 | 30A | ESC-ECU & VALVES | p.326 |
| F101 | 30A | DriveTrain Control Module (DTCM) | p.326 |
| F102 | 15A | DUAL USB PORT | p.326 |
| F103 | 15A | HD ACCY #3 * | p.326 |
| F104 | 15A | PPU COOL PUMP * Integrated Center Stack (ICS)/Heat Ventilation Air Conditioning | p.326 |
| F105 | 10A | (HVAC) | p.326 |
| F106 | 50A | Electronic Speed Control (ESC)-PUMP MTR | p.326 |
| F107 | 20A | TRAILER TOW STOP/TURN LT * | p.326 |
| F108 | 15A | HD ACCY #4 * | p.326 |
| F109 | 20A | TRAILER TOW STOP/TURN RT | p.326 |
| F11 | 10A | UCI Port (USB & AUX) | p.322 |
| F110 | 30A | POWER INVERTER | p.326 |
| F111 | — | TRAILER TOW BACKUP * CAUTION! | p.326 |
| F12 | 25A | HIFI Amplifier | p.322 |
| F13 | — | Spare | p.322 |
| F14 | — | Spare Instrument Panel Cluster (IPC)/Switch Bank-Heavy Duty Electrical | p.322 |
| F15 | 15A | Pkg (SWITCH BANK-HD ELEC) | p.322 |
| F16 | — | Spare | p.322 |
| F17 | — | Spare | p.322 |
| F18 | 10A | Air Conditioning Clutch (AC CLUTCH) | p.322 |
| F19 | — | Spare | p.322 |
| F20 | 30A | Central Body Controller (CBC) 1-INTERIOR LIGHTS | p.322 |
| F21 | 20A | REAR WIPER Engine Control Module (ECM)/Powertrain Control Module (PCM)/ | p.322 |
| F22 | 10A | Motor Generator Unit (MGU) WAKE UP/Power Pack Unit (PPU) WAKE UP | p.322 |
| F23 | 10A | Powertrain Control Module (PCM)/Engine Control Module (ECM) | p.322 |
| F24 | — | Spare | p.322 |
| F25 | 10A | Module Shift By Wire (MOD_SBW) | p.322 |
| F26 | 40A | Central Body Controller (CBC) 2-EXTERIOR LIGHTS #1 | p.322 |
| F27 | 30A | Front Wipers | p.322 |
| F28 | 40A | Central Body Controller (CBC) 3-POWER LOCKS | p.323 |
| F29 | 40A | Central Body Controller (CBC) 4-EXTERIOR LIGHTS #2 | p.323 |
| F30 | — | Spare | p.323 |
| F31 | 10A | DIAGNOSTIC PORT Heating Ventilation Air Conditioning Mod (HVAC CTRL MOD)/Steering | p.323 |
| F32 | 10A | Column Lock (SCL)/Occupant Classification Module (OCM)/Driver Presence Detection Module (DPDM) ParkTronics System (PTS)/Infrared Camera Module (IRCM)/Airbag | p.323 |
| F33 | 10A | Disable Lamps (AIRBAG DISABLE LMPS) Electronic Stability Control (ESC)/Electric Hydraulic Power Steering | p.323 |
| F34 | 10A | (EHPS)/Smart Bar Control Module (SBCM) WAKE UP | p.323 |
| F35 | 30A | BRAKE VAC PMP * | p.323 |
| F36 | 30A | Trailer Tow Electric Brake Mod * | p.323 |
| F37 | 30A | TRAILER TOW CONN 7W * | p.323 |
| F38 | 20A | Engine Control Module (ECM) | p.323 |
| F39 | 15A | MGU Coolant Pump (3.6) * | p.323 |
| F40 | 15A | DriveTrain Control Module (DTCM)/Axle Lock (AXLE LOC) FT_RR | p.323 |
| F41 | 15A | Instrument Cluster (IC)/Security GateWay (SGW) WAKE UP | p.323 |
| F42 | 10A | Power Control Control Feed (Electric Stop/Start) * | p.323 |
| F43 | 20A | PWR OUTLET (CARGO) BATT | p.323 |
| F44 | 10A | InfraRed Camera (IRCAM) HEATERS | p.323 |
| F45 | 20A | PWR OUTLET (CARGO) IGN * | p.323 |
| F46 | 10A | AUTO HDLP LVL MOD/LVL MTR/HDLP SW | p.323 |
| F47 | — | Spare | p.323 |
| F48 | — | Spare | p.323 |
| F49 | 10A | Occupant Restraint Controller (ORC) | p.323 |
| F50 | 10A | HD ACC * Digital TV (DSRC)/USB/InSide RearView Mirror (ISRVM)/ Compass | p.324 |
| F51 | 10A | Module (CSGM) | p.324 |
| F52 | 20A | CIGAR LTR | p.324 |
| F53 | — | Spare | p.324 |
| F54 | — | Spare | p.324 |
| F55 | 10A | Central Vision Processing Module (CVPM) | p.324 |
| F56 | 10A | IN-CAR TEMP SENSOR | p.324 |
| F57 | 20A | Front Driver Heated Seat | p.324 |
| F58 | 20A | Front Pass Heated Seat | p.324 |
| F59 | — | Spare | p.324 |
| F60 | 15A | Comfort Steering Wheel Module (CSWM) (HTD STR WHEEL) | p.324 |
| F61 | 10A | Left Blind Spot Sensor (LBSS)/Right Blind Spot Sensor (RBSS) | p.324 |
| F62 | — | Exhaust Sol * | p.324 |
| F63 | 10A | Occupant Restraint Controller (ORC) | p.324 |
| F64 | — | Spare | p.324 |
| F65 | — | Spare | p.324 |
| F66 | 40A | HVAC BLOWER MTR Front | p.324 |
| F67 | — | Spare | p.324 |
| F68 | — | Spare | p.324 |
| F69 | 5A | Motor Generator Unit MGU Belt Starter Generator (BSG) * | p.324 |
| F70 | 25A | INJ/IGN COIL (GAS)/GLO PLUG MOD (DSL) | p.324 |
| F71 | — | Spare | p.324 |
| F72 | 10A | HD ELEC ACC PKG * | p.324 |
| F73 | 20A | PWR TOP LT | p.324 |
| F74 | 20A | PWR TOP RT | p.324 |
| F75 | 10A | Module (PPU-BPCM & APM) Belt Starter Generator (BSG) * | p.325 |
| F76 | 20A | ECM (GAS)/PCM (DSL) | p.325 |
| F77 | 10A | HEATED MIRRORS | p.325 |
| F78 | 10A | INTRUSION/SIREN/INTRUSION SENSORS | p.325 |
| F79 | 20A | SMART BAR CTRL MOD | p.325 |
| F80 | 15A | Powertrain Control Module (PCM) / Sol 1-2 Block Shift | p.325 |
| F81 | 30A | REAR DEFROSTER (EBL) | p.325 |
| F82 | 30A | FUEL HTR * | p.325 |
| F83 | 60A | GLOW PLUG * | p.325 |
| F84 | 30A | UREA HTR CTRL UNIT * | p.325 |
| F85 | 10A | PM SENSOR * | p.325 |
| F86 | 30A | BRAKE VAC PMP 2 * | p.325 |
| F87 | 10A | SUPPLY/PURGING PMP * | p.325 |
| F88 | 20A | NOx SENSOR #1/ #2 * Steering Column Control Module (SCCM)/ Cruise Control (CRUISE | p.325 |
| F89 | 10A | CTL)/Digital TV (DTV)/ Air Bag Disable Lamp | p.325 |
| F90 | 20A | TRAILER TOW PARK LMP* | p.325 |
| F91 | 20A | HORN | p.325 |
| F92 | 40A | HD ACCY #2 * | p.325 |
| F93 | 40A | HD ACCY #1 * | p.325 |
| F94 | 10A | Tire Pressure Monitor (TPM)/RF Hub system (CORAX) | p.325 |
| F95 | — | Spare | p.325 |
| F96 | 10A | PWR MIRROR SW | p.325 |
| F97 | 20A | RADIO/TBM | p.325 |
| F98 | 10A | SW BANK-HD ELEC/OFF-ROAD | p.325 |
| F99 | — | Spare | p.326 |
More fuse pages in the manual
Diagrams and printed legends we can’t host. Check the box name printed on a diagram before counting positions.