2023 Jeep Wrangler 4xe Maintenance Schedule

The 2023 Jeep Wrangler 4xe is a groundbreaking hybrid version of the famous off-road vehicle. It comes with a full maintenance plan that is meant to make sure it works well and lasts a long time. Jeep has worked hard to come up with a plan that combines the specific needs of the Wrangler 4xe’s hybrid system with the tough requirements of its off-road powers. Regular maintenance of the vehicle’s dual engine, which includes both the electric and gasoline parts, is necessary to make sure that switching between electric and hybrid modes goes smoothly. The vehicle’s battery, charging system, and engine parts are checked regularly to keep it running efficiently and dependably. The 2023 Jeep Wrangler 4xe Maintenance Schedule shows that Jeep is committed to giving adventure fans a strong and long-lasting driving experience by meeting the specific needs of both electric and standard systems.

SCHEDULED SERVICING — GASOLINE ENGINE

Your vehicle is equipped with an automatic oil change indicator system. The oil change indicator system will remind you that it is time to take your vehicle in for scheduled maintenance.
Based on engine operation conditions, the oil change indicator message will illuminate. This means that service is required for your vehicle. Operating conditions such as frequent short trips, trailer tow, and extremely hot or cold ambient temperatures will influence when the “Change Oil” or “Oil Change Required” message is displayed. Have your vehicle serviced as soon as possible, within the next 500 miles (805 km). On vehicles equipped with instrument cluster display, “Oil Change Required” will be displayed and a single chime will sound, indicating that an oil change is necessary.
On non-instrument cluster display-equipped vehicles, “Change Oil” will flash in the instrument cluster odometer and a single chime will sound, indicating that an oil change is necessary. An authorized dealer will reset the oil change indicator message after completing the scheduled oil change. If a scheduled oil change is performed by someone other than an authorized dealer, the message can be reset by referring to the steps described under Instrument Cluster Display for further information.

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.
Once A Month Or Before A Long Trip:

• Check the engine oil level.
• Check the windshield washer fluid level.
• Check the tire inflation pressures and look for unusual wear or damage, rotate at the first sign of irregular wear.
• Check the fluid levels of the coolant reservoir, brake master cylinder, and power steering, and fill as needed.
• Check the function of all interior and exterior lights.

MAINTENANCE PLAN
Refer to the maintenance plan for the required maintenance intervals.

At Every Oil Change Interval As Indicated By Oil Change Indicator System

• Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregular wear, even if it occurs before the oil indicator system turns on.
• Inspect the battery and clean and tighten terminals as required.
• Inspect the CV/Universal joints.
• Inspect brake pads, shoes, rotors, drums, hoses, and parking brakes.
• Inspect engine cooling system protection and hoses.
• Inspect the exhaust system.
• Inspect the engine air cleaner filter if used in dusty or off-road conditions; replace the engine air cleaner filter if necessary.
• Inspect all door latches for the presence of grease; reapply if necessary.

NOTE:
Using white lithium grease, lubricate the door hinge joints twice a year to prevent premature wear.

Mileage Or Time Passed (Whichever Comes First):

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

110,000

120,000

130,000

140,000

150,000

Or Years:

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Or Kilometers:

32,000

48,000

64,000

80,000

96,000

112,000

128,000

144,000

160,000

176,000

192,000

208,000

224,000

240,000

Additional Inspections

Inspect the CV/Universal joints.

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Inspect the front suspension, tie rod ends, and rear suspension, and replace if necessary.

X

X

X

X

X

X

X

Inspect the front and rear axle fluid.

X

X

X

X

Inspect the brake linings, and replace them as necessary.

X

X

X

X

X

X

X

Adjust parking brakes on vehicles equipped with four-wheel disc brakes.

X

X

X

X

X

X

X

X

Inspect transfer case fluid.

X

X

X

X

Additional Maintenance

Replace the engine air cleaner filter.

X

X

X

X

X

Replace cabin air filter.

To be replaced every 12,000 miles (19,000 km).

Replace Spark Plugs – 2.0L Engine.1

X

X

Replace spark plugs – 3.6L Engine.1

X

Flush and replace the engine, intercooler (if equipped) coolant at 10 years or 150,000 miles (240,000 km) whichever comes first.

X

X

Change the manual transmission fluid if using your vehicle for any of the following: trailer towing, snow plowing, heavy loading, taxi, police, delivery service (commercial service), off-road, desert operation, or more than 50% of your driving is at sustained high speeds during hot weather, above 90°F (32°C).

X

X

X

X

X

Change transfer case fluid if using your vehicle for any of the following: police, taxi, fleet, or frequent trailer towing.

X

X

Inspect and replace the PCV valve if necessary.

X

Change front and rear axle fluid if using your vehicle for police, taxi, fleet, off-road, or frequent trailer towing.

X

X

X

1. The spark plug change interval is mileage-based only; yearly intervals do not apply.

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 vehicle could result in a component malfunction and affect vehicle handling and performance. This could cause an accident.

SCHEDULED SERVICING — DIESEL ENGINE
Your vehicle is equipped with an automatic oil change indicator system. The oil change indicator system will remind you that it is time to take your vehicle in for scheduled maintenance.
Based on engine operation conditions, the oil change indicator message will illuminate. This means that service is required for your vehicle. Operating conditions such as frequent short trips, trailer tow, and extremely hot or cold ambient temperatures will influence when the “Oil Change Required” message is displayed. Have your vehicle serviced as soon as possible, within the next 500 miles (805 km).
An authorized dealer will reset the oil change indicator message after completing the scheduled oil change. If a scheduled oil change is performed by someone other than an authorized dealer, reset the message

NOTE:
Under no circumstances should oil change intervals exceed 10,000 miles (16,000 km) or 12 months, whichever comes first. Engine Oil Filter Replacement Residual oil in the housing may spill from the housing when the new filter is installed if the residual oil is not removed from the housing or enough time has not elapsed to allow the oil to drain back into the engine. When servicing the oil filter on this engine, open the filter cap approximately six turns until the cap o-ring is visible and stops. Wait five minutes with the cap in this position to allow dirty engine oil to drain back into the engine. After five minutes, the cap and filter assembly can be removed and discarded. When installing the new oil filter cartridge assembly, ensure the cap is tightened to the specified torque to prevent low oil pressure conditions.

Once A Month Or Before A Long Trip:

• Check engine oil level
• Check the windshield washer fluid level
• Check the tire pressures and look for unusual wear or damage
• Check the fluid levels of the coolant reservoir, and brake master cylinder, and fill as needed
• Check the function of all interior and exterior lights

MAINTENANCE PLAN — DIESEL FUEL UP TO B5 BIODIESEL
Refer to the maintenance plan for the required maintenance intervals.

At Every Oil Change Interval As Indicated By Oil Change Indicator System

• Change oil and filter.
• Fill the Diesel Exhaust Fluid tank.
• Drain water from the fuel filter assembly.
• Rotate the tires. Rotate at the first sign of irregular wear, even if it occurs before the oil indicator system turns on.
• Inspect the battery and clean and tighten terminals as required.
• Inspect the CV/Universal joints.
• Inspect brake pads, shoes, rotors, drums, hoses, and parking brakes.
• Inspect engine cooling system protection and hoses.
• Inspect the exhaust system.
• Inspect the engine air cleaner filter if used in dusty or off-road conditions; replace the engine air cleaner filter if necessary.

At Every Second Oil Change Interval As Indicated By Oil Change Indicator System

• Change the fuel filter.

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 vehicle could result in a component malfunction and affect vehicle handling and performance. This could cause an accident.

ADDITIONAL MAINTENANCE — B6 TO B20 BIODIESEL
NOTE:

• Under no circumstances should oil change intervals exceed 8,000 miles (12,875 km) or six months, whichever comes first when using biodiesel blends greater than 5% (B5).
• The owner is required to monitor mileage for B6-B20 biodiesel, the automatic oil change indicator system does not reflect the use of biofuels.
• The fuel filter change interval is maintained at every second oil change. This is especially important with biodiesel usage.
  For more information on using biodiesel.

ENGINE COMPARTMENT

2.0L GASOLINE ENGINE

1. Battery
2. Power Distribution Center (Fuses)
3. Engine Oil Dipstick
4. Engine Oil Fill
5. Engine Coolant Pressure Cap
6. Brake Fluid Reservoir Cap
7. Washer Fluid Reservoir Cap
8. Engine Air Cleaner Filter
9. Power Steering Reservoir Cap
10. Intercooler Coolant Reservoir Cap

3.6L GASOLINE ENGINE

1. Power Distribution Center (Fuses)
2. Battery
3. Engine Oil Dipstick
4. Engine Oil Fill
5. Engine Coolant Pressure Cap
6. Brake Fluid Reservoir Cap
7. Power Pack Unit Pressure Cap — If Equipped
8. Washer Fluid Reservoir Cap
9. Engine Air Cleaner Filter
10. Power Steering Reservoir Cap
11. Motor Generator Unit Coolant Pressure Cap— If Equipped

3.0L DIESEL ENGINE

1. Battery
2. Engine Oil Fill
3. Engine Coolant Pressure Reservoir Cap
4. Brake Fluid Reservoir Cap
5. Washer Fluid Reservoir Cap
6. Power Distribution Center (Fuses)
7. Power Steering Reservoir Cap
8. Engine Oil Dipstick
9. Engine Air Cleaner Filter

CHECKING OIL LEVEL
To ensure proper engine lubrication, the engine oil must be maintained at the correct level. Check the oil level at regular intervals, such as at every fuel stop. The best time to check the engine oil level is about five minutes after a fully warmed-up engine is shut off.
Checking the oil while the vehicle is on level ground will improve the accuracy of the oil level readings.
There are four possible dipstick types:

• Crosshatched zone.
• Crosshatched zone marked SAFE.
• Crosshatched zone marked with MIN at the low end of the range and MAX at the high end of the range.
• Crosshatched zone marked with dimples at the MIN and the MAX ends of the range.

NOTE:
Always maintain the oil level within the crosshatch markings on the dipstick.
NOTE:
Use care when filling under hood fluids such as engine oil, washer fluid, antifreeze, etc., to minimize spillage onto the top of the engine. Any excess fluid that is spilled onto the top of the engine should be removed using compressed air or an absorbent cloth.
Adding 1 qt (1 L) of oil when the reading is at the low end of the dipstick range will raise the oil level to the high end of the range marking.

CAUTION!
Overfilling or underfilling the crankcase will cause aeration or loss of oil pressure. This could damage your engine.

ADDING WASHER FLUID
The fluid reservoir for the windshield washers and the rear window washer (if equipped) are shared. The fluid reservoir is located in the engine compartment. Be sure to check the fluid level at regular intervals. Fill the reservoir with windshield washer solvent only (not radiator antifreeze). When refilling the washer fluid reservoir, take some washer fluid and apply it to a cloth or towel and wipe clean the wiper blades; this will help blade performance.
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.
NOTE:
Use care when filling under hood fluids such as engine oil, washer fluid, antifreeze, etc., to minimize spillage onto the top of the engine. Any excess fluid that is spilled onto the top of the engine should be removed using compressed air or an absorbent cloth.

WARNING!
Commercial windshield washer solvents are flammable. They could ignite and burn you. Care must be exercised when filling or working around the washer solution.

MAINTENANCE-FREE BATTERY
Your vehicle is equipped with a maintenance-free battery. You will never have to add water, and periodic maintenance is not required.

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 the eyes or on the skin, flush the area immediately with large amounts of water.
• Battery gas is flammable and explosive. Keep flame or sparks 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.
• Vehicles with the Stop/Start system will be equipped with two batteries. Both the main and the supplemental batteries must be disconnected to completely de-energize the 12 Volt electrical system.
• Serious injury or death could result if you do not disconnect both batteries. To learn how to properly disconnect, see an authorized dealer.

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 a starting voltage.
• Vehicles with the Stop/Start system will be equipped with two batteries. Both the main and the supplemental batteries must be disconnected to completely de-energize the 12 Volt electrical system.
• If the negative battery cables are not isolated properly it can cause a potential power spike or surge in the system, resulting in damage to essential electrical components.

PRESSURE WASHING
Cleaning the engine compartment with a high-pressure washer is not recommended.

CAUTION!
Precautions have been taken to safeguard all parts and connections however, the pressures generated by these machines are such that complete protection against water ingress cannot be guaranteed.

 

FAQs

Useful Link

View Full PDF: 2023 Jeep Wrangler 4xe Owner’s Manual | Auto User Guide

2023 Jeep Wrangler 4xe Keys and Smart Key Guidelines