{"nhtsa_id":11037461,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-09-23","date":"2026-09-18","document_id":"08-069-26 REV. B","mfr_campaign":null,"replaces":null,"component":"STRUCTURE:BODY; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Power Liftgate Module (PLGM) Updates Customers may experience one or more of the following symptoms: SYMPTOM: ● **Continuous chime is heard in the trunk area and does not stop with closing the liftgate, ignition shut off or CAN bus going to sleep. ● Vehicle may not start because the battery has become depleted due to: ○ Noise on the CAN bus. ○ Liftgate left open for more than few hours. ○ Continuous chime. ● Power Liftgate is not responding when first attempting to open after vehicle has sat for an extended period of time. ● Customer is unable to open the liftgate.** ● Power Liftgate does not open using the front interior switch, key fob, Hands Free Entry (HFE) kick or exterior handle. The Instrument Panel Cluster (IPC) may display \"Liftgate Open\", a warning light may illuminate even though the liftgate appears fully closed, and an audible chime may be generated at speeds above 8 kph (5 mph). ● The power liftgate system chimes when trying to operate the liftgate using a HFE kick while no key is detected in the zone. ● After enabling or disabling the HFE kick or the Power Liftgate Alert feature, the PLGM does not save the changes. ● The power liftgate latch releases after pressing the exterior handle switch, but the liftgate does not power open. This bulletin involves inspecting and possibly reprogramming the PLGM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037461-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037461-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11037461","components":[{"id":"structure-body","name":"Body and frame","parent":null},{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND WAGONEER","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_jeep_grand-wagoneer"]}],"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":[]}