{"nhtsa_id":11029667,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-03-05","date":"2026-02-18","document_id":"08-072-26","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"High Voltage Battery Pack Replacement XU1 Warranty Extension Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0DAB-00 - Hybrid/EV Cell Balancing Performance. ● P0BBE-00 - Hybrid Battery Pack Voltage Variation. ● P1C5E-00 - Battery State Of Health Failed. ● P0B24-00 - Hybrid/EV Battery \"A\" Voltage Unstable. ● P0B28-00 - Hybrid/EV Battery \"B\" Voltage Unstable. NOTE: ● Any warranty qualifying issues outside of these specific DTCs will continue to be covered per the HV battery standard warranty coverage. ● Battery packs may contain cells with separator damage. Customers may comment on the following: ● “Service Charging System” message displayed in the Instrument Panel Cluster (IPC) and charging is inhibited. This bulletin involves replacing the high voltage battery pack.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029667-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029667-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11029667","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["P0B24","P0B28","P0BBE","P0DAB","P1C5E"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE 4XE","year_from":2022,"year_to":2026,"match":"base","vehicle_ids":["2022_jeep_grand-cherokee","2023_jeep_grand-cherokee","2024_jeep_grand-cherokee","2025_jeep_grand-cherokee","2026_jeep_grand-cherokee"]},{"make":"JEEP","model":"WRANGLER 4XE","year_from":2021,"year_to":2025,"match":"base","vehicle_ids":["2021_jeep_wrangler","2022_jeep_wrangler","2023_jeep_wrangler","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":[]}