JEEP

09-013-26 REV. A

Manufacturer communications

Publication date: 2026-09-30
Received by NHTSA: 2026-10-07
NHTSA record numbers: 11038310

Manufacturer summary

Original wording in English

Engine Runs Rough Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
• P0300-00 - Random/Multiple Cylinder Misfire Detected.
• P0301-00 - Cylinder 1 Misfire.
• P0302-00 - Cylinder 2 Misfire.
• P0303-00 - Cylinder 3 Misfire.
• P0304-00 - Cylinder 4 Misfire. Customers may also comment on the following:
• Engine runs rough. This bulletin involves replacing all four main chamber spark plugs.

NHTSA manufacturer communications ↗