P0300 on JEEP CHEROKEE — Random/Multiple Cylinder Misfire Detected

Q: "What does P0300 mean on a JEEP CHEROKEE?"

"P0300 indicates: Random/Multiple Cylinder Misfire Detected. This is a ignition system code. 2 JEEP CHEROKEE owners have reported this to NHTSA."

Q: "What are the most common causes of P0300 on JEEP CHEROKEE?"

"Based on 2 NHTSA reports, the most commonly cited components are: Electrical System,Engine,Fuel/Propulsion System, Engine. These percentages are based on the component field in owner complaints."

Q: "Is P0300 serious on my JEEP CHEROKEE?"

"Of 2 NHTSA reports for this code on JEEP CHEROKEE, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my JEEP CHEROKEE shows P0300?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P0300 Means on Your JEEP CHEROKEE

P0300 is a diagnostic trouble code indicating: Random/Multiple Cylinder Misfire Detected. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 JEEP CHEROKEE owners have reported this issue to NHTSA across model years 2016-2019. Most reports come from the 2016, 2019 model years. The most commonly reported component is Electrical System,Engine,Fuel/Propulsion System (50.0% of reports).

Real JEEP CHEROKEE Owner Reports

Source: NHTSA Complaints Database

"Vehicle lost power while in traffic was running weird jerking check engine light came on A! Light came on vehicle wouldn't stay running. Codes read Catalyst system efficiency."

— 2016 JEEP CHEROKEE owner · ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM · Filed 12/02/2024

"Engine started running rough, MIL light came on and flashing after 10 minutes of highway driving. Found code P0300 for random misfire, monitors cylinder misfire with scan tool and found cylinders 1 and 2 misfiring. Tested coils, checked spark plugs and tested fuel injectors, no issues found."

— 2019 JEEP CHEROKEE owner · ENGINE · Filed 07/26/2024

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'16

1

'19

Common Causes on JEEP CHEROKEE

Based on NHTSA complaint component analysis for this vehicle.

ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM 50%

ENGINE 50%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0300 mean on a JEEP CHEROKEE? ▾

P0300 indicates: Random/Multiple Cylinder Misfire Detected. This is a ignition system code. 2 JEEP CHEROKEE owners have reported this to NHTSA.

What are the most common causes of P0300 on JEEP CHEROKEE? ▾

Based on 2 NHTSA reports, the most commonly cited components are: Electrical System,Engine,Fuel/Propulsion System, Engine. These percentages are based on the component field in owner complaints.

Is P0300 serious on my JEEP CHEROKEE? ▾

Of 2 NHTSA reports for this code on JEEP CHEROKEE, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my JEEP CHEROKEE shows P0300? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.