{"nhtsa_id":11012826,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-01-14","date":"2025-01-11","document_id":"21-008-25","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":"Transmission Control Module","summary":"\"Flash: Transmission Control Module (TCM) Updates 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): ● P1614-00 - ECU Reset/Recovery Occurred. ● P0810-00 - Clutch Position Control Error. Customers may also comment on one or more of the following: ● Customer may not continue with rock cycle maneuver due to the wrong message \"\"Shift To P then Desired Gear\"\" displayed on the Instrument Panel Cluster (IPC). ● K0 Adaptation routine runs when vehicle stationary and EV Mode. ● Vehicle loses propulsion capability. ● Service transmission warning indicator is on. NOTE: Requires key cycle to recover. This bulletin involves reprogramming the TCM with the latest available software.\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11012826-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11012826-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11012826","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0810","P1614"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_jeep_grand-cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE L","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_jeep_grand-cherokee-l"]}],"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":[]}