--- title: "2018 Jeep Grand Cherokee Parts and Specs" description: "Everything for the 2018 Jeep Grand Cherokee: oil type and capacity, battery group size, tire sizes, wiper blades, filters, service schedule, and common problems, verified, sourced, and in one place." url: "https://whichcarparts.com/cars/jeep/grand-cherokee/2018" updated: "2026-08-20" --- # 2018 Jeep Grand Cherokee parts and specs Everything you need to own and maintain this exact model year. Verified specifications, part numbers, and the problems that recur, in one place. WK2 (4th generation), 2012-2021, Mid-size 2-row SUV. ## Quick facts | Quick fact | Value | | --- | --- | | Engine oil | 0W-20, 6 qt (base engine) | | Battery | Group H6/Group 48 (some builds/trims reported as H7/Group 94R), 730 CCA | | Tire size | 245/70R17 (base trim) | | Wiper blades | 22" / 21" / 11" rear | | Max towing | 7,200 lbs | | Key fob battery | CR2032 | ## Specifications for the 2012-2021 Grand Cherokee ### Oil & filter Viscosity, capacity, filter part numbers, change interval [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/oil). ### Battery BCI group size, cold cranking amps, AGM or flooded [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/battery). ### Tires & wheels Factory sizes by trim, pressures, bolt pattern, lug torque [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/tires). ### Wiper blades Driver, passenger and rear blade lengths [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/wipers). ### Air & cabin filters Cabin and engine air filter part numbers, locations, intervals [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/filters). ### Brakes Rotor diameters, pad references, service notes [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/brakes). ### Fluids Transmission fluid, coolant, brake fluid and capacities [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/fluids). ### Service schedule What's actually due at every mileage interval [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/service-schedule). ### Problems & reliability Documented failures, recalls, and which years to avoid [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/common-problems). ### Oil light reset Step-by-step maintenance light reset, no tools [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/oil-reset). ### Key fob battery Which coin cell the remote takes [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/key-fob-battery). ### Specs Towing, weight, fuel tank, fuel economy [Read more](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021/specs). These specifications are shared across every Grand Cherokee of the WK2 (4th generation) generation. See the [2012-2021 Jeep Grand Cherokee overview](https://whichcarparts.com/cars/jeep/grand-cherokee/2012-2021) for the full picture, or the [Jeep Grand Cherokee guide](https://whichcarparts.com/cars/jeep/grand-cherokee) to compare every generation. ## What changed for the 2018 Jeep Grand Cherokee | Years | What changed | | --- | --- | | 2018 | SRT Trackhawk introduced with the 707-hp supercharged 6.2L | ## Known problems with the 2018 Jeep Grand Cherokee 2 of the 5 issues we track for the 2012-2021 generation are documented against the 2018 model year. ### Quadra-Lift air suspension leaks and compressor failure (moderate) The optional/standard-on-upper-trims Quadra-Lift air suspension is prone to leaking air springs (commonly at the top shock/strut fitting) and worn-out compressors, especially as the vehicle ages, symptoms include sagging overnight, the ride height stuck in one mode, or an audible compressor running constantly trying to keep up. It's a known-quantity failure across the whole generation rather than a specific recall; some owners convert to aftermarket coil-over conversions to avoid repeat repairs. Typical cost: $150-$400 per air spring/strut; $800-$1,500 for a compressor. ### EcoDiesel EGR cooler cracking (recall) (major) A batch of 3.0L EcoDiesel EGR coolers can develop internal cracks that let coolant leak into the EGR/intake system, risking overheating or (in FCA's own risk assessment) a compartment fire in worst cases. Dealers inspect and replace the EGR cooler under recall. This came on top of a broader 2019 FCA settlement over EcoDiesel emissions-control software, which owners should also be aware of when buying used. NHTSA 20V-699. Typical cost: Free under recall. 3 more issues are reported in other 2012-2021 years: TIPM fuel pump relay failure / stall (recall) (2012-2013 (recall population); sporadic TIPM complaints reported through the generation); Monostable shifter rollaway (recall) (2014-2015); Uconnect touchscreen freezes / reboots (2012-2017 (more common on earlier Uconnect versions)). Full detail, costs and sources on the [Jeep Grand Cherokee problems and years to avoid](https://whichcarparts.com/cars/jeep/grand-cherokee/common-problems) guide. ## Which engines were offered in the 2018 Grand Cherokee? | Engine | Trims | Oil | Oil capacity | | --- | --- | --- | --- | | 3.6L Pentastar V6 | Laredo, Laredo E/X, Limited, Trailhawk, Overland, High Altitude, Summit (V6) | 0W-20 | 6 qt | | 5.7L HEMI V8 | Laredo X, Limited, Limited X, Trailhawk, Overland, High Altitude, Summit (V8) | 5W-20 | 7 qt | | 3.0L EcoDiesel V6 (VM Motori) | Laredo, Limited, Overland, Summit (diesel) | 0W-40 | 8 qt | | 6.4L HEMI V8 (392, SRT8/SRT) | SRT8 (2012-2013), SRT (2014-2021) | 0W-40 | 7 qt | | 6.2L Supercharged HEMI V8 (Trackhawk) | SRT Trackhawk | 0W-40 | 8.3 qt | ## About the Jeep Grand Cherokee The Jeep Grand Cherokee is Jeep's mid-size, unibody flagship SUV, and the 2012-2025 window covers two very different generations plus a messy handoff year. 2L supercharged Trackhawk performance flagships from 2012 and 2018 respectively. It earned a reputation for comfort and off-road ability (Quadra-Lift air suspension, Quadra-Drive II) alongside a rap sheet of electrical and recall headaches, a Totally Integrated Power Module (TIPM) that could kill the fuel pump relay and stall the engine, a monostable 8-speed shifter that let cars roll away because drivers didn't feel it click into Park, and (on the EcoDiesel) a cracked-EGR-cooler recall layered on top of the wider FCA/VM Motori diesel-emissions settlement. 6L only. 0L turbo-four 4xe plug-in hybrid rated around 25 miles of EV range. Jeep dropped the HEMI V8 from the 2-row Grand Cherokee after the 2023 model year, leaving just the Pentastar and 4xe for 2024-2025 (the inline-six "Hurricane" that replaced the V8 elsewhere in the Stellantis lineup did not come to the 2-row Grand Cherokee in this window). The WL's early years brought their own recalls: a steering intermediate shaft that could disconnect, rear coil springs that could detach while driving, and, on 4xe models, a serious high-voltage battery fire recall that told owners to park outside. Across both generations the 12V battery lives in the cabin, not the engine bay (under the front passenger seat on WK2; split between a main battery under the driver's seat and a small auxiliary start-stop battery under the passenger seat on WL), which trips up a lot of first-time DIYers expecting to pop the hood. For how the specifications changed across every generation, see the [full Jeep Grand Cherokee guide](https://whichcarparts.com/cars/jeep/grand-cherokee). ## Other Jeep Grand Cherokee years - [2025](https://whichcarparts.com/cars/jeep/grand-cherokee/2025) - [2024](https://whichcarparts.com/cars/jeep/grand-cherokee/2024) - [2023](https://whichcarparts.com/cars/jeep/grand-cherokee/2023) - [2022](https://whichcarparts.com/cars/jeep/grand-cherokee/2022) - [2021](https://whichcarparts.com/cars/jeep/grand-cherokee/2021) - [2020](https://whichcarparts.com/cars/jeep/grand-cherokee/2020) - [2019](https://whichcarparts.com/cars/jeep/grand-cherokee/2019) - [2017](https://whichcarparts.com/cars/jeep/grand-cherokee/2017) - [2016](https://whichcarparts.com/cars/jeep/grand-cherokee/2016) - [2015](https://whichcarparts.com/cars/jeep/grand-cherokee/2015) - [2014](https://whichcarparts.com/cars/jeep/grand-cherokee/2014) - [2013](https://whichcarparts.com/cars/jeep/grand-cherokee/2013) - [2012](https://whichcarparts.com/cars/jeep/grand-cherokee/2012) Data confidence for this generation: Check your manual. ## Sources - [Wikipedia, Jeep Grand Cherokee (WK2), engine table and generation history](https://en.wikipedia.org/wiki/Jeep_Grand_Cherokee_(WK2)) - [NHTSA recall 14V-530, TIPM fuel pump relay](https://static.nhtsa.gov/odi/rcl/2014/RCLRPT-14V530-6862.PDF) - [NHTSA recall 16V-240, monostable shifter rollaway](https://static.nhtsa.gov/odi/rcl/2016/RCLRPT-16V240-9145.PDF) - [NHTSA recall 20V-699, EcoDiesel EGR cooler](https://static.nhtsa.gov/odi/rcl/2020/RCLRPT-20V699-5290.PDF) - [Fontana CDJR, Jeep Grand Cherokee Oil Type & Capacity Guide (2011-2026), aggregated by-engine oil specs](https://www.fontanacdjr.com/service-department/service-and-parts-tips/jeep-grand-cherokee-oil-type/) - [Victorville Motors, Jeep Grand Cherokee Oil Type & Capacity](https://www.victorvillemotors.com/service-department/service-tips/jeep-grand-cherokee-oil-type-capacity/) - [Collierville CDJR, Jeep Grand Cherokee Bolt Pattern Guide (1999-2026)](https://www.colliervillechryslerdodgejeepram.com/service-department/service-tips/jeep-grand-cherokee-bolt-pattern/) - [Wheel-Size.com, 2016 Jeep Grand Cherokee wheel/tire fitments](https://www.wheel-size.com/size/jeep/grand-cherokee/2016/) - [Firkins CJ, How to Reset the Oil Life Indicator on a Jeep Grand Cherokee](https://www.firkinscj.com/blog/how-to-reset-the-oil-life-indicator-on-a-jeep-grand-cherokee/) - [Suncore Industries, Common Quadra-Lift air suspension issues (WK2)](https://www.suncoreindustries.com/product/26221/common-quadralift-air-suspension-issues-and-strut-or-spring-replacement-options-for-your-jeep-grand-cherokee-wk2) Specifications vary with engine option, production date, and market.