{"nhtsa_id":10184524,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-12-21","date":"2020-11-12","document_id":"N202316880","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Service Update - Certain 2020 model year Chevrolet Corvette vehicles may have a condition where diagnostic trouble codes (DTC?s) P1967 and/or P1968 may falsely set in the transmission control module (TCM) due to an internal software misalignment. GM will update the software in the TCM. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10184524-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10184524-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10184524","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P1967","P1968"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"CORVETTE","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_chevrolet_corvette"]}],"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":[]}