2018 Jeep Grand Cherokee engine and engine cooling problems
17 owner complaints filed with NHTSA name the engine and engine cooling on the 2018 Jeep Grand Cherokee — 2% of all complaints for this model year.
What owners report
“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…”
filed Aug 18, 2026
“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…”
filed Aug 4, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Crankshaft position sensor tone wheel may delaminate, causing the engine to lose its…Campaign 23V411000 · Jun 8, 2023
- Exhaust Gas Recirculation (EGR) cooler may crack and allow pre-heated vaporized coolant…Campaign 20V699000 · Nov 12, 2020
Engine and Engine Cooling problems in other Grand Cherokee years
Grand Cherokee engine and engine cooling problems by year →Other reported problem areas on the 2018 Jeep Grand Cherokee
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.