2018 Jeep Grand Cherokee Engine cooling Problems
- Complaints
- 17about this part
- Share
- 2%of 855 total for the year
- Median mileage
- 86,000miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 17 complaints about the engine cooling of the 2018 Jeep Grand Cherokee, 2% of the 855 complaints for this model year. Where a mileage was given, the median is 86,000 miles. 1 a fire, according to the filers. 2 recall campaigns on record are filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2018 Jeep Grand Cherokee. The contact stated that since the vehicle was purchased, there was an abnormally strong coolant odor coming from the vehicle. The dealer was notified of the failure and informed the contact that the coolant reservoir was recently refilled, and the odor might be due to an overflow. The contact stated that the failure persisted, and the vehicle was taken to the dealer, where the water pump was replaced. …”
NHTSA complaint #11757611, filed 2026-08, 125,000 miles“The contact owns a 2018 Jeep Grand Cherokee. The contact stated that the vehicle failed to start-up as needed. There was no warning light illuminated. The vehicle was towed to the dealer where it was diagnosed as a failure with the Exhaust Gas Recirculation (EGR) valve. The contact was informed that the EGR valve needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 101,000.”
NHTSA complaint #11593427, filed 2024-06, 101,000 miles“The contact owns a 2018 Jeep Grand Cherokee. The contact stated that while driving for approximately 10-minutes, there was an abnormal knocking sound coming from the vehicle while depressing the accelerator pedal. The RPM lowered and the vehicle failed to respond while depressing the accelerator pedal. There was no warning light illuminated. The failure persisted, and the contact coasted into a parking lot and there was an excessive amount of yellow-grayish smoke coming from the engine compartment. …”
NHTSA complaint #11678171, filed 2025-08, 104,000 miles“The contact owns a 2018 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, the check engine warning light started flashing on and off and the vehicle decelerated. The vehicle was taken to the local dealer who examined the engine and informed the contact that there were metal shavings inside the engine. The vehicle was not repaired. The local dealer was not contacted. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 109,000.”
NHTSA complaint #11670579, filed 2025-07, 109,000 miles“The contact owns a 2018 Jeep Grand Cherokee. The contact stated that while the vehicle was parked, the contact became aware of an unknown liquid on the ground. The vehicle was taken to the dealer where it was diagnosed. The contact was informed that coolant was leaking into the engine. The contact was informed that the water pump needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 82,000. The VIN was not provided.”
NHTSA complaint #11590467, filed 2024-05, 82,000 milesRelated recalls
- 23V411000Jun 8, 2023Chrysler (FCA US, LLC) is recalling certain 2014-2019 Ram 1500 and 2014-2020 Jeep Grand Cherokee vehicles equipped with 3.0L Diesel engines. The crankshaft…Covers: Jeep Grand Cherokee 2014–2020, Ram 1500 2014–2019
- 20V699000Nov 12, 2020Chrysler (FCA US LLC) is recalling certain 2014-2019 Jeep Grand Cherokee vehicles equipped with the 3.0L EcoDiesel engines. The Exhaust Gas Recirculation…Covers: Jeep Grand Cherokee 2014–2019
Related service bulletins
- 10248505Sep 7, 2023PUMP Water For 2016-2024MY 3.6L Pentastar Upgrade with suspected coolant leak. PRIOR TO PERFORMING ANY WATER PUMP REPLACEMENT, PROCEED WITH INSPECTION INSTRUCTIONS FROM THE…
- 10244344Sep 7, 2023PUMP Water For 2016-2024MY 3.6L Pentastar Upgrade with suspected coolant leak. PRIOR TO PERFORMING ANY WATER PUMP REPLACEMENT, PROCEED WITH INSPECTION INSTRUCTIONS FROM THE…
- 10243192Aug 31, 2023Suspected engine coolant leak.
- 10240035May 21, 2023MIL lamp-on. Engine noise, rattle. Misfire or rough running.
- 10239957May 18, 2023Water Quality When Mixed With Engine Coolant
- 10236933Apr 15, 2023wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
- 10247963Feb 24, 2023Customer complaint may include a coolant leak, or, a coolant leak is detected during a routine oil change inspection.
- 10234436Feb 24, 2023Customer complaint may include a coolant leak, or, a coolant leak is detected during a routine oil change inspection.
- 10247906Feb 22, 2023ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY review and follow instructions from the latest STAR Online…
- 10234379Feb 22, 2023ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY review and follow instructions from the latest STAR Online…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 1 | 0% |
| 2023 | 1 | 0% |
| 2022 | 1 | 0% |
| 2021 | 2 | 0% |
| 2020 | 6 | 2% |
| 2019 | 5 | 1% |
| 2018 | 17 | 2% |
| 2017 | 6 | 2% |
| 2016 | 8 | 3% |
| 2015 | 23 | 2% |
| 2014 | 45 | 2% |
| 2013 | 4 | 1% |
| 2012 | 18 | 1% |
| 2011 | 15 | 1% |
| 2010 | 3 | 3% |
| 2009 | 5 | 4% |
| 2008 | 39 | 5% |
| 2007 | 77 | 7% |
| 2006 | 53 | 4% |
| 2005 | 78 | 4% |
| 2004 | 55 | 4% |
| 2003 | 42 | 6% |
| 2002 | 146 | 10% |
| 2001 | 53 | 6% |
| 2000 | 178 | 12% |
| 1999 | 121 | 7% |
| 1998 | 69 | 7% |
| 1997 | 81 | 8% |
| 1996 | 88 | 10% |
| 1995 | 70 | 10% |
| 1994 | 75 | 13% |
| 1993 | 46 | 8% |
| 1991 | 1 | 17% |
| 1989 | 1 | 20% |
Other parts of the 2018 Jeep Grand Cherokee
339 complaintsOther or unknown
271 complaintsEngine
125 complaintsTransmission and drivetrain
75 complaintsFuel system
63 complaintsBrakes
62 complaintsSeats
43 complaintsVehicle speed control
38 complaintsAir bags
24 complaintsExterior lighting
22 complaintsForward collision avoidance
17 complaintsBody and structure
16 complaints
← All problems reported for the 2018 Jeep Grand Cherokee
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology