2015 Jeep Grand Cherokee · symptom sheet
Check engine light or misfire
- 67owner reports
- 90,000median miles
- $8,600median quote
- 1involved a crash
Newest report Sep 24, 2026 · checked Oct 2, 2026
395 of the 1,359 complaints on this car are about the engine. 67 of those describe misfire.
Tick what matches of 67 reports
Misfire on other Grand Cherokee years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2016, 2020, 2021, 2022, 2023, 2024, 2025, 2026.
What this problem usually is
These reports start with the check engine light. Many describe the engine running rough or shaking at idle, a P0300-series code, or a catalytic converter code. A worrying number say the light was flashing. Owners often list ignition coils or spark plugs already replaced, and the light coming back afterward.
What got replaced
Owners who name the part that was replaced mention the sensor (9 reports) and the injectors (4 reports).
Recalls and investigations
7 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.
A high pressure fuel pump (HPFP) failure may introduce internal debris into the fuel system, potentially resulting in fuel starvation.
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.
These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging.
The supercharger mounting bracket may contact and damage the ABS line, possibly resulting in a brake fluid leak.
The affected vehicles are equipped with radios that have software vulnerabilities that can allow third-party access to certain networked vehicle control systems.
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
High pressure fuel pump failure. Open, led to recall 24V-957.
Pedestrian alert sounds. Closed aug 7, 2023, led to recall 22V-063.
Software security vulnerability. Closed jan 5, 2016, led to recall 15V-508.
Post 14v-391 headliner fires. Closed jul 6, 2016, led to recall 15V-879.
Totally integrated power module failure. Closed jul 24, 2015.
Air bag non-deployment. Closed dec 23, 2014, led to recall 14V-438.
Headliner fires. Closed aug 12, 2014, led to recall 14V-391.
Headliner fires. Closed jan 14, 2014.
Crash related fuel tank fires. Closed nov 14, 2014, led to recall 13V-252.
Crash related fuel tank fires. Closed jun 14, 2012.
Fuel storage system crash related fires. Closed aug 23, 2010.
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.
What owners paid
7 of the 67 reports quote a price. Each dot is one quote. The middle half runs $2,800 to $9,000.
When it happens
The middle half of failures fell between 50,000 and 116,000 miles, from the 42 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 6 service bulletins or notices for the 2015 Jeep Grand Cherokee that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
Perceived Low Power/Acceleration Lag, And/Or Malfunction Indicator Lamp (MIL) Illumination, Diagnostic Trouble Codes (DTCs) P0299 Turbocharger Underboost And/Or P026D ? Fuel Injection Quantity Higher Than Expected, Set.
Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter ...
Oil Pump Assembly If error code P06DD present on any Pentastar V6 application, please inspect oil pump for relief valve failure. See photo attached.
2 more on the 2015 Jeep Grand Cherokee page.
What owners wrote
“Check engine light came on and when we had it tested with the OBDâII scanner it came back with a Fuel system wiring harness corrosion Emission control module software updates Transmission shift issues.”
Filed Jan 16, 2026
“Loud ticking noise from engine that speeds up upon acceleration. Failing rocker arm causing debris leading to ticking noise. No error codes. Upon personal investigation online, have found "Pentastar Tick" to be a known problem in 2013-2015 Jeep Grand Cherokees on Jeep forums. Problem can lead to misfire while driving, including jerking, damage to cam shaft, as well as engine damage.”
Filed Jul 25, 2023
“05/2023 loud ticking noise coming from top right side of engine. Replaced transfer case module. Ticking sound continued. Check engine light code P0523 occurred 06/2023. Known issue with Jeep Grand Cherokee 3.6L: rocker arms and right intake camshaft failure”
Filed Jun 6, 2023
“The vehicle has an oil leak problem which may be caused by the defect of cylinder head gasket, and some of other engine gaskets. The oil seal is problematic for this model.”
Filed Aug 2, 2022
Should you keep driving it?
This page can't tell you that. 1 of 67 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 Which lights mean pull over now? Warning lights by color and urgency
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
- 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
- Engine rattles or ticks 25 reports