{"nhtsa_id":11037312,"type":"emissions","type_name":"Emissions","date_added":"2026-09-15","date":"2026-09-11","document_id":"N242452131-02","mfr_campaign":"N242452131-02","replaces":null,"component":"FUEL/PROPULSION SYSTEM","mfr_system":null,"summary":"Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain 2023-2024 model year Chevrolet Colorado / Silverado 1500 and GMC Canyon / Sierra 1500 vehicles equipped with a 2.7L engine (RPO L3B). The Engine Control Module (ECM) may not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037312-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037312-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11037312","components":[{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"COLORADO","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_chevrolet_colorado","2024_chevrolet_colorado"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2023,"year_to":2024,"match":"base","vehicle_ids":["2023_chevrolet_silverado","2024_chevrolet_silverado"]},{"make":"GMC","model":"CANYON","year_from":2023,"year_to":2024,"match":"exact","vehicle_ids":["2023_gmc_canyon","2024_gmc_canyon"]},{"make":"GMC","model":"SIERRA 1500","year_from":2023,"year_to":2024,"match":"base","vehicle_ids":["2023_gmc_sierra","2024_gmc_sierra"]}],"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":[]}