{"nhtsa_id":11032844,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-05-20","date":"2026-05-13","document_id":"09-009-26","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"PHEV Engine Replacement XC2 Warranty Extension Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P2336 - Cylinder 1 Above Knock/Combustion Vibration Sensor Threshold. ● P2337 - Cylinder 2 Above Knock/Combustion Vibration Sensor Threshold. ● P2338 - Cylinder 3 Above Knock/Combustion Vibration Sensor Threshold. ● P2339 - Cylinder 4 Above Knock/Combustion Vibration Sensor Threshold. The customer may also describe the following: ● A knocking noise from the engine compartment This bulletin involves replacing the engine.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11032844-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11032844-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11032844","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P2336","P2337","P2338","P2339"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2023,"year_to":2025,"match":"exact","vehicle_ids":["2023_jeep_grand-cherokee","2024_jeep_grand-cherokee","2025_jeep_grand-cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE 4XE","year_from":2023,"year_to":2025,"match":"base","vehicle_ids":["2023_jeep_grand-cherokee","2024_jeep_grand-cherokee","2025_jeep_grand-cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE L","year_from":2023,"year_to":2025,"match":"exact","vehicle_ids":["2023_jeep_grand-cherokee-l","2024_jeep_grand-cherokee-l","2025_jeep_grand-cherokee-l"]},{"make":"JEEP","model":"WRANGLER","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_jeep_wrangler","2025_jeep_wrangler"]},{"make":"JEEP","model":"WRANGLER 4XE","year_from":2024,"year_to":2025,"match":"base","vehicle_ids":["2024_jeep_wrangler","2025_jeep_wrangler"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}