{"nhtsa_id":11015309,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-03-07","date":"2025-03-04","document_id":"9100502","mfr_campaign":null,"replaces":null,"component":"STRUCTURE:BODY","mfr_system":"LOWER ACTIVE GRILL SHUTTER","summary":"LOWER ACTIVE GRILL SHUTTER If the upper or lower AGS seems to be inop please make sure you CLEAR the DTCs BEFORE swapping the old AGS for a new one, and test if the error code returns. Very often the wiring harness presents corrosion, so make sure to check it for any damage BEFORE swapping the AGS. Corrosion in the harness disrupts communication with the AGS, which sets up the DTCs for AGS performance and lights the CEL. If the AGS is inop and it will be replaced and sent back to Stellantis also send back the wiring harness with it. Make sure to fully perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE as indicated in the service library.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11015309-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11015309-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11015309","components":[{"id":"structure-body","name":"Body and frame","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_jeep_grand-cherokee","2022_jeep_grand-cherokee","2023_jeep_grand-cherokee","2024_jeep_grand-cherokee","2025_jeep_grand-cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE 4XE","year_from":2021,"year_to":2025,"match":"base","vehicle_ids":["2021_jeep_grand-cherokee","2022_jeep_grand-cherokee","2023_jeep_grand-cherokee","2024_jeep_grand-cherokee","2025_jeep_grand-cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE L","year_from":2021,"year_to":2025,"match":"exact","vehicle_ids":["2021_jeep_grand-cherokee-l","2022_jeep_grand-cherokee-l","2023_jeep_grand-cherokee-l","2024_jeep_grand-cherokee-l","2025_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":[]}