{"nhtsa_id":11031392,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-21","date":"2026-04-18","document_id":"LI27.00-P-080462","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Complaint Harsh upshifts, downshifts, or jolting in lower gears when accelerating. Cause Incorrectly installed (rotated) rotational speed sensors on the EHS (VGS Control Unit) can cause abnormalities in signals. As a result, poor adaptation values are stored and harsh gearshifts are felt. This only affects vehicles with VGS control units produced between days 182-296 of 2025 (July 4, 2025-October 23, 2025). Remedy 1. Collect initial transmission EEPROM file 2. Check EEPROM .txt file for VGS control unit serial number and production date (attachment figure 1) - If the valve body is already removed, you can inspect the control unit for its stamped serial number (attachment figure 2) If the production date is or is within 25182-25296 (07/4/25-10/23/25): The complete valve body will require replacement. 1. Remove transmission oil pan & inspect fluid/pan/filter condition - compare findings to extended fluid condition examples provided in Xentry blue book under general information for VGS 2. Replace complete EHS valve body, fill to near max fluid level, & complete initial start-up - Ensure all oil guide pipes are installed in the new valve body to prevent a new concern after replacement. (See photos in WIS instructions) - Verify the new valve body production date is outside of day 182-296 of 2025 (attachment figure 2) If the production date is outside of this range: This LI is not applicable. 1. Perform IPR and follow recommended instruction","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031392-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031392-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031392","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES BENZ","model":"AMG GLE63 S 4MATIC","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"GLE 580 4MATIC","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"GLS 580 4MATIC","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG G63","year_from":2019,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLE63 S","year_from":2021,"year_to":2022,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLE63 S 4MATIC+","year_from":2023,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLE63 S 4MATIC+ COUPE","year_from":2025,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLE63 S COUPE","year_from":2021,"year_to":2022,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLS63","year_from":2020,"year_to":2022,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLS63 4MATIC+","year_from":2023,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLS63E","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLE 580 4MATIC","year_from":2024,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLS 580 4MATIC","year_from":2024,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLS 600","year_from":2023,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"GLS 600","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"GLS 600 4MATIC","year_from":2022,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"S 680","year_from":2023,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"S 680 4MATIC","year_from":2022,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-MAYBACH","model":"S 680 4MATIC","year_from":2025,"year_to":2025,"match":null,"vehicle_ids":[]}],"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":[]}