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#19-NA-217: Manual Transmission Stalling, Clutch Chatter and/or Hard Shifting into 1st Gear or Reverse; Automatic Transmission Vibration on Launch and/or Engine Noise - (Dec 21, 2020) Subject:  Manual Transmission Stalling, Clutch Chatter and... Read More

Models: 2006 Chevrolet Corvette with 6L80 Automatic Transmission (RPO MYC) Purpose This bulletin introduces and highlights features of the new Hydra-Matic 6L80 Automatic Transmission. Introduction The Hydra-Matic 6L80 is the first member of a new... Read More

Service Bulletin #:  06-07-30-002 Date: January 20, 2006 Subject:  6L80 Automatic Transmission Delayed Engagement From PARK to DRIVE or PARK to REVERSE (Reprogram Transmission Control Module (TCM)) Model(s): 2006 Chevrolet Corvette with... Read More

Bulletin Number:  07.07.30.002ConditionSome customers may comment on busy or frequent up and down shifts in 3rd, 4th, 5th or 6th gear at approximately 48-80 km/h (30-50 mph). The MIL may also be illuminated and a DTC P1751 stored in the TCM.... Read More

Service Bulletin #:  05-07-30-023 Date: September 2005 Subject:  New Product Announcement -- Hydra-Matic 6L80 Automatic Transmission Model(s): 2006 Cadillac STS-V, XLR-V2006 Chevrolet Corvettewith 6L80 Automatic Transmission (RPO MYC)... Read More

2008 Hydra-Matic 6L80 (MYC) 2008 Model Year SummaryHydra-Matic 6L80 six-speed automatic Car & Truck transmission New application: Hummer H2, SUT Modular design for application flexibility Full descriptions of new or changed features NEW... Read More

Source:   GM Techlink Date:   October 2011 Subject:   6L80 or 6L90 Automatic Transmission Shift Conditions Models:   2006 - 2008 Chevrolet Corvette Several shift conditions may be present on some 2006-2008 STS-V,... Read More