2015 Jeep Grand Cherokee · symptom sheet
Engine rattles or ticks
- 25owner reports
- 70,105median miles
- 0involved a crash
Newest report Jul 27, 2026 · checked Oct 2, 2026
218 of the 1,359 complaints on this car are about the engine. 25 of those describe engine rattle.
Tick what matches of 25 reports
Engine rattle on other Grand Cherokee years
No other Grand Cherokee model year has enough reports of engine rattle for a sheet of its own. See every Grand Cherokee year.
What this problem usually is
Owners in this group hear something before anything breaks. Most describe a ticking or tapping at idle, a rattle that's worse on a cold start and fades as the engine warms, or a noise that comes and goes over weeks. Some report the check engine light following a while later. It's the early-warning end of the engine complaints, and the reports that end in a named part are useful to anyone hearing the same sound.
What got replaced
Owners who name the part that was replaced mention the lifters (8 reports).
Recalls and investigations
4 recalls on the engine cover the 2015 model year. A recall on the same system isn't always the same failure, so read the defect text.
The crankshaft position sensor tone wheel may delaminate, causing the engine to lose its ability to synchronize the fuel injector pulses and cam shaft timing, possibly resulting in an engine stall.
The Exhaust Gas Recirculation (EGR) cooler may crack and allow pre-heated vaporized coolant to enter the EGR system. This mixture may combust inside the intake manifold.
The crankshaft position sensor tone wheel may delaminate causing the engine to lose its ability to synchronize the fuel injector pulses and cam shaft timing, possibly resulting in an engine stall.
The supercharger mounting bracket may contact and damage the ABS line, possibly resulting in a brake fluid leak.
All 10 recalls on the 2015 Jeep Grand Cherokee, with the owner complaints on each recalled system
NHTSA investigations into the engine on the Grand Cherokee
Fan blade failure (engine cooling fan). Closed sep 12, 2006, led to recall 06V-199.
Engine cooling fan blade failure. Closed nov 14, 2005, led to recall 06V-199.
None of these investigations covers the 2015 model year.
When it happens
The middle half of failures fell between 60,000 and 104,000 miles, from the 13 reports that gave a mileage.
What owners wrote
“Lifters are ticking. Yet another 3.6L Pentastar engine with the same issue, and no recall issued. Someone is going to die from this defect, if there haven't already been fatalities related to this problem.”
Filed Apr 11, 2025
“The rocker arm is defected causing ticking noise and Known by manufacturer that it is due to fail but still built car with faulty part. Cost thousands to fix”
Filed Jan 18, 2024
“After an oil change, my jeep starting ticking. I've read of several recalls. My jeep is having all 10 of the recall issues.”
Filed Dec 25, 2023
“Vehicle has 143,345 and engine started ticking from valvetrain on drivers side. It is a known issue with the 3.6 liter V6. Will probably have to pay out of pocket to have rockers, lifters and camshafts replaced.”
Filed Jul 15, 2023
Should you keep driving it?
This page can't tell you that. 0 of 25 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- Seat belt or seat problems 370 reports
- Engine stalls or loses power while driving 116 reports
- Airbag warning light or recall 103 reports
- Check engine light or misfire 67 reports
- Rolls away in Park or will not shift out of Park 65 reports
- Transmission shudders, slips or shifts hard 59 reports
- Infotainment, screen or backup camera fails 54 reports
- Diesel fuel system or injector problems 40 reports
- Brakes grind, pulse or wear early 39 reports
- "Shift to Park" or "Service Shifter" warning comes on 32 reports
- Engine overheats or leaks coolant 31 reports
- Transmission drops into neutral or downshifts on its own 30 reports
- Fuel pump failure 26 reports