2018 Jeep Wrangler Service and Repair Manual
The 2018 Jeep Wrangler factory service and repair manual is matched to this exact model year, so the specifications and procedures line up with your 3.6L V6 and your specific trim.
Engines
- 3.6L V6 (220 cu in), DOHC
Trims
- Rubicon
- Sport
- Sport S
- Unlimited Moab
- Unlimited Rubicon
- Unlimited Sahara
- Unlimited Sport
- Unlimited Sport S
Known issues on the 2018 Wrangler. Six recalls are on federal record for this model year: three separate recalls for overheated clutch components that can increase the risk of a fire, a front seat belt buckle strap that can separate or sever and leave the belt inoperable, a roof-top tent cover that can detach while the vehicle is moving and create a road hazard, and a front underhood wiring fault that can cause the vehicle to stall and increase the risk of a crash. Owners have filed 2,597 complaints and Jeep has issued 647 technical service bulletins for the year.
From a routine service interval to a hard-to-trace wiring fault, it keeps you on the OEM procedure and the correct specification for your specific 2018 Wrangler.
Chrysler (FCA US LLC) is recalling certain 2011-2018 Jeep Wrangler right hand drive vehicles. The driver's seat belt buckle mounting strap may fracture and separate from the seat frame.
A separated or severed seat belt buckle strap will result in an inoperable seat belt, increasing the risk of injury in the event of a crash.
FCA US will notify owners, and dealers will replace the driver's seat belt buckle, free of charge. Interim notices informing owners of the safety risk were mailed November 19, 2019. Owners will received a second letter and the recall began March 26, 2020. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is VA6.
Chrysler (FCA US LLC) is recalling certain 2018-2019 Jeep Wrangler vehicles. The front track bar brackets may be improperly welded, which can cause the bracket to separate from the frame, reducing steering capability.
An unexpected reduction in steering ability, can increase the risk of a crash.
Chrysler will notify owners, and dealers will inspect and repair the track bar bracket welds, as necessary, free of charge. The recall is expected to begin November 17, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is UA5.
Chrysler (FCA US LLC) is recalling certain 2018 Jeep Wrangler vehicles. The rear under body ladder rail may corrode, possibly reducing the strength of the rear floor pan and causing the left rear seat mount to become loose.
If the floor pan strength is reduced and/or the rear seat mount becomes loose, the rear seat may detach in a crash, increasing the risk of injury.
Chrysler will notify owners, and dealers will inspect and, as necessary, coat the interior and exterior of the driver's side rear underbody ladder rail with three-part rust protection. The recall began September 11, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U27.
Chrysler (FCA US LLC) is recalling certain 2018 Jeep Wrangler four-door vehicles. The right rear passenger door latch may not be in the correct location, possibly preventing the door from latching properly.
If the right rear passenger door opens unexpectedly, it can increase the risk of injury.
Chrysler will notify owners, and dealers will repair the right rear door latch reinforcement, free of charge. The recall begin December 6, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is UB6.
Chrysler (FCA US LLC) is recalling certain 2018 Dodge Charger, Durango and Challenger, Jeep Grand Cherokee and Wrangler, Chrysler 300, and RAM 1500 vehicles. An incorrect transmission park lock rod may have been installed in the transmission.
If the incorrect park lock rod is installed, the transmission may not shift into 'PARK' and keep the vehicle from moving, increasing the risk of unintended vehicle movement and the risk of a crash.
Chrysler will notify owners, and dealers will install the correct park lock rod, free of charge. The recall began June 28, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U43.
Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depress
If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.
Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmissi
Erwin Hymer Group USA LP dba American Fastbacks (EHGUSA-AF) is recalling certain 2018 Jeep Wrangler vehicles sold with a roof top tent installed. The top cover of the roof top tent may crack or break, possibly resulting in the cover detaching from the vehicle while moving.
If the roof top tent cover detaches from the vehicle while moving, it can create a road hazard, increasing the risk of a crash.
The remedy for this recall is still under development. The recall began May 9, 2019. Owners may contact American Fastbacks customer service at 1-844-533-7997 extension 301. Note: Vehicles in this recall are also included in recall 19V-190.
Chrysler (FCA US, LLC) is recalling certain 2018-2021 Jeep Wrangler and 2020-2021 Jeep Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.
Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.
FCA US LLC will notify owners, and dealers will add software to reduce engine torque capability when clutch assembly temperatures rise to a level that may damage the inner pressure plate, free of charge." FCA has ordered a stop sale for the affected vehicles as of February 25, 2021. Owner notification letters were mailed on March 4, 2021.
Chrysler (FCA US LLC) is recalling certain 2018-2020 Jeep Wrangler and 2020 Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.
The overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.
Chrysler will notify owners, and dealers will reroute a wire harness and inspect the clutch system, and replace components as needed. The recall began April 30, 2020. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is W12.
Chrysler (FCA US LLC) is recalling certain 2018 Jeep Wrangler vehicles. The intermediate steering shaft may not have been properly welded causing a split where the external spline is formed.
If the weld seam splits, the steering wheel may lose center positioning causing a loss of steering responsiveness and increasing the risk of a crash.
Chrysler will notify owners, and dealers will inspect and, as necessary, replace the intermediate steering shaft, free of charge. The recall began June 21, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U48.
Chrysler (FCA US LLC) is recalling certain 2018 Jeep Renegade, Compass and Grand Cherokee, RAM 1500 and Promaster, Fiat 500x, Dodge Journey, Challenger, Charger and Durango and Chrysler 300x vehicles, 2017-2018 Jeep Wrangler, Dodge Grand Caravan and Chrysler Town and Country vehicles and 2018-2019 Jeep Cherokee and 2018 Chrysler Pacifica and Pacifica Hybrid vehicles. The powertrain control module may be equipped with a voltage regulator chip in the circuit board that may fail, causing a stall or a no start condition.
A vehicle stall can increase the risk of a crash.
Chrysler will notify owners, and dealers will replace the powertrain control module, free of charge. The recall began October 2, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U87.
Chrysler (FCA US, LLC) is recalling certain 2018-2023 Jeep Wrangler, and 2020-2023 Jeep Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.
Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.
Dealers will replace the clutch assembly and update the software, free of charge. Owner notification letters were mailed from November 16, 2023 through July 25, 2024. Owners may contact (FCA US, LLC) customer service at 1-800-853-1403. FCA US LLC's number for this recall is 19A. This recall expands and replaces previous recall 21V-028. Vehicles previously repaired under recall 21V-028 will need to have the new remedy completed.
Chrysler (FCA US, LLC) is recalling certain 2020-2024 Jeep Gladiator and 2018-2024 Jeep Wrangler vehicles. The instrument panel cluster may experience an internal short circuit and fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Controls and Displays."
An instrument panel that fails to display critical safety information, such as the speedometer or warning lights, can increase the risk of a crash.
Dealers will replace the instrument panel cluster, free of charge. Owner notification letters were mailed between October 3, 2024, and January 23, 2025. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is 30B.
Chrysler (FCA US, LLC) is recalling certain 2018-2024 Jeep Wrangler vehicles. The wiring harness for the rearview camera and the center brake light may short circuit, which can disable the rearview camera image and center brake light. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 111, "Rear Visibility" and 108, "Lamps, Reflective Devices, and Associated Equipment."
A rearview camera image that does not display decreases the driver's visibility, increasing the risk of a crash. Additionally, a center brake light that fails to illuminate can fail to indicate to other drivers that the vehicle is slowing down, increasing the risk of a crash.
Dealers replaced the harness for the center brake light and rearview camera and/or the spare tire carrier/harness assembly, as necessary, free of charge. All vehicles were repaired by January 15, 2024. Owner notification letters were mailed September 26, 2024. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 77B.
ID-25-11 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
D-25-15 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
EMISSION RECALL NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp (CEL/MIL). (JT) vehicles: CEL/MIL an
Instrument Panel Cluster (IPC) Blank XZ1 Warranty Extension Customers may experience the following: SYMPTOM: **A blank electronic vehicle information center (EVIC) in the IPC. No information is displayed for the fuel level, temperature gaug
D-26-17 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT)
ID-26-37 (XZ1) Instrument Panel Cluster (IPC) - Select 2018 - 2020 Jeep Wrangler (JL) and 2020 Jeep Gladiator (JT)
Instrument Panel Cluster (IPC) Blank XZ1 Warranty Extension Customers may experience the following: SYMPTOM: A blank IPC display. No information is displayed for the speedometer, fuel level, temperature gauge, odometer, outside temperature
CORE HEATER
Showing the 8 most recent of 711 technical service bulletins on file with NHTSA.
I HAVE A LEMON JEEP THAT HAS CAUSED ME MANY ACCIDENTS DUE TO THE STEERING ISSUE AND ENGINE OVERHEATING AND LEAKING OIL WHICH I ALMOST STARTED A WILDFIRE IN NORTHERN CALIFORNIA MOUNTAINS HIGHWAY 299. UNACCEPTABLE, FCA DOESNT CARE ....
THE 2018 JEEP WRANGLER BEGAN HAVING PROBLEMS IN OCT OF 2019 WITH A RACING ENGINE AND ELECTRICAL ISSUES, MAY OF 2020 THE CAR HAD SEVERE ELECTRICAL ISSUES AND THE DEALERSHIP COULD NOT FIND ANYTHING WRONG. THE CAR WAS AT THE DEALERSHIP FOR 5 DAYS. IN JUNE THE SAME ELECTRICAL PROBLEMS OCCURRED AND IT WAS AT THE DEALERSHIP FOR 6 DAYS. WHEN THE CAR WAS RETURNED TO US THE DEALERSHIP SAID NOT TO DRIVE IT VERY FAR. ON JULY 23RD. THE CAR WENT ROGUE IN REVERSE AT 60 MILES AN HOUR BACKWARDS. NO PRESSURE
2018 JEEP WRANGLER. CONSUMER WRITES IN REGARDS TO RUST ON WHEELS. *LD THE CONSUMER STATED UPON LIVING THE DEALERSHP THE LEFT REAR WHEEL CAME OFF CAUSING THE CONSUMER TO CRASH.*JS
I SWERVED TO MISS A DEER.I RAN OFF A BIG DROP OFF&HIT ON MAINLY THE DRIVER'S SIDE.THERE WAS OVER $26K DAMAGE REPAIRS DONE.THEY HAVE DECIDED TO TOTAL MY JEEP WITH A LITTLE OVER 36K MILES.I RAN OFF THE RAID&HIT ON MAINLY THE DRIVER'S SIDE.MY AIR BAGS NEVER DEPLOYED BUT MOST IMPORTANTLY MY SEAT BELT DID NOT PREVENT ME FROM HITTING MY FACE ON THE STEERING WHEEL.I HAVE A GASH ABOVE MY RIGHT EYE THAT THE EMTS ADVISED ME TO GO TO A HOSPITAL TO HAVE STITCHES.BUTBWITH THE COVID-19 EPIDEMIC FULLY IN FORCE
During a high-speed collision/accident the vehicle had a high speed impact and rolled several times during the accident. The airbag system did not deploy as it should have the airbags in the seats for the sides, and the back did not deploy the driver of the vehicle myself was injured severely and ejected from the vehicle due to the airbags, not deploying, I sustained multiple injuries the only airbag that deployed was from the steering wheel which cause multiple rib fractures, and no other airba
TRYING TO AVOID A LARGE DIRT CLUMP LEFT IN THE ROAD BY THE ROAD MAINTENENCE CREW I SWERVED TO THE LEFT AT 35 MILES AN HOUR AND THE ESM/ESC LIGHT CAME ON AND THE JEEP TOOK OVER THE CAR I COULD NOT APPLY THE BRAKES OR CONTROL THE STEERING THE SPEED DID NOT DEMINISH AND THE VEHICLE CROSSED AN INTERSECTION ROLLING UP AN EMBANKMENT SO THAT THE FRONT OF THE JEEP WENT IN THE AIR AND CAME DOWN HARD CAUSING THE FRAME TO BREAK AND THE FRONT AXLE TO BEND. IF I COULD HAVE AT LEAST BEEN ABLE TO CONTROL THE S
"TAKATA RECALL" - WHILE COMING OFF THE INTERSTATE, I STARTED BRAKING BECAUSE VEHICLES WERE STOPPED AT THE TOP OF THE EXIT RAMP TO TURN ONTO THE OVERPASS (HIGHWAY). THE VEHICLE WOULD NOT STOP. ON THREE SEPARATE TIMES THE BRAKES DID NOT FUNCTION PROPER. THEY WOULD NOT GRIP. FELT LIGHT HYDRO-PLAINING OR LIKE THEY WOULD NOT LOCK. THE VEHICLE HAD MORE THAN ENOUGH DISTANCE TO STOP AND I WAS BRAKING BEFORE I LEFT THE INTERSTATE. ON THE THIRD TRY, THE BRAKES FAILED AGAIN, CAUSING AN ACCIDENT. MY SON WAS
WHEN TURNING INTO A PARKING SPOT ON AN INCLINE, I HAD SLOWED TO START THE TURN. I THEN LET OFF THE BRAKE A BIT TO BE ABLE TO ROLL INTO THE SPOT. THE CAR THEN ACCELLERATED INTO THE WALL AT THE END OF THE SPOT DAMAGING MY BUMPER, SCRATCHING THE CAR NEXT TO MINE AND ALSO THE WALL I HIT.
THE JEEP IS UNCONTROLLABLE AT HIGH SPEEDS AND THE STEERING IS HIGHLY FLAWED. WE WERE NOT TOLD WHEN WE PICKED UP THE VEHICLE TWO WEEKS AGO THAT THERE WAS A PROBLEM WITH THE STEERING. THERE IS EXCESSIVE PLAY IN THE WHEEL SO THERE IS ABOUT 10 DEGREES OF TURN WHERE THE STEERING IS NOT AFFECTED. THE VEHICLE BASICALLY BOUNCES BACK AND FORTH IN THE LANE AND IT IS HARD TO CONTROL. THE FASTER, THE MORE DIFFICULT TO CONTROL. WHEN OUR SON WAS TRYING TO MERGE ONTO A HIGHWAY HE SAID IT BECAME UNCONTROLLABLE
WHILE EXITING A DRIVE THRU, I NEEDED TO MAKE A LEFT HAND TURN. AS I WAS IN MOTION TO MAKE THAT LEFT HAND TURN, THE STEERING LOCKED UP & IT SENT ME CRASHING STRAIGHT INTO A METAL POLE, WHICH JUST HAPPENED TO BE FOR THE PEDESTRIAN CROSSING. THANKFULLY THERE WERE NO PEDESTRIANS AROUND THAT WERE PUT IN HARMS WAY. HOWEVER, MY 2018 JEEP WRANGLER JL WAS NOT SO LUCKY. CURRENTLY WE ARE BEING ESTIMATED AROUND $8,000 - $15,000 IN DAMAGE BUT THAT IS NOT FINAL YET.
DRIVING HOME FROM WORK - ROUGHLY 30 MILES PER HOUR WHEN SUDDENLY MY JEEP PULLED HARD TO THE RIGHT. I HAD NO CONTROL, BOUNCED OFF A PHONE POLE AND MY AIRBAG WENT OFF. IT FELT AS IF SOMETHING IN THE UNDERCARRIAGE SIMPLY GAVE OUT. *DT I HAVE NOW BEEN WITHOUT A VEHICLE FOR 6 WEEKS.*DT *TT *TR *JS
MY VACCUM BOOSTER FAILED. MY SON WAS DRIVING MY JEEP THAT ONLY HAS 2000 MILES ON IT. HE WAS DRIVING IN DRY WARM CONDITION. HE DROVE IN THE SUBURBS ON A MAIN STREET. HE HIT THE BRAKES AND NOTHING HAPPENED WHICH CAUSED HIM TO REAR END SOMEONE. EDR REPORT HAS BEEN DONE. INSURANCE HAS INVESTIGATED AND WELL. UNFORTUNATELY CHRYSLER WONT OWN UP TO THE FACT THAT THE VACCUM BOOSTER WAS FAULTY.
TL* THE CONTACT OWNS A 2018 JEEP WRANGLER. WHILE PARKING, THE VEHICLE MADE A REVVING SOUND BEFORE THE CONTACT PRESSED THE IGNITION BUTTON TO TURN OFF THE VEHICLE. THE ENGINE SOME HOW REEVED UP AND ACCELERATED AND JUMPED THE CURVE AND HIT A BUILDING. THE CONTACT WAS CURRENTLY TAKING THE VEHICLE TO THE DEALER STEVE LANDERS CHRYSLER DODGE JEEP RAM 401 COLONEL GLENN PLAZA LOOP, LITTLE ROCK, AR 72210 (501) 374-4848 TO GET THE ISSUE DIAGNOSED. THE MANUFACTURER HAD NOT BEEN CONTACTED YET. THE VEHICLE
The check engine light came on in my car. I was waiting for the dealer to call me to fix it for the 3rd time. I was on my way home when every electrical option on the vehicle turned on- wipers, lights, dash lights, brake- which caused the car to brake- then it turned off and I had no brakes, the car had no steering, it accelerated and I went off the road.
The steering wheel is loose/has too much play. The Jeep wanders when holding the wheel straight. When driving, turning the wheel 2-3 inches in either direction produced not movement at all in my tires. This was not an issue before steering recalls were done. Unfortunately, with Covid and working from home, I did not drive a lot, and definitely not need to take it on highway. April 9th was the first time taking it on the highway for a trip (Connecticut to Kentucky). I did not make it. I w
Showing the 15 most serious of 1811 complaints filed with NHTSA.
