Service Bulletin #:  1741321 Date: December 9, 2005 Subject:  Automatic Transmission, Busy Shifting, MIL Illuminated, DTC P1751 Model(s): 2006 Chevrolet Corvette, 2006 Cadillac XLR-V and STS-V, 2007 Cadillac Escalade, 2007 GMC Yukon... Read More

#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

Diagnostic Tips for Harsh Shifting Transmission Conditions June 10, 2017 Harsh shifting conditions and delayed garage shift engagements may be noticed on some 2017 Colorado, Canyon, Express, Savana; 2016-2017 ATS, CT6, CTS, Camaro; 2015 - 2017... Read More

Hard shifting conditions when shifting into 1st gear or Reverse may be found on some 2014 - 2018 Silverado, Sierra and Corvette models equipped the 4.3L V6 engine, 5.3L V8 engine or 6.2L V8 engine (RPOs LV3, L83, L86, LT4) and 2015-2018 CTS-V,... Read More

#PIP5248D: Stalling Shudder And/or Hard shifting Into 1st Gear Or Reverse Vibration On launch (With Excessive Crankshaft End Play) - (Aug 10, 2017) Subject:  Stalling Shudder And/or Hard shifting Into 1st Gear Or Reverse Vibration On launch ... Read More

#PIP5437B: 8L45 8L90 Diagnostic Tips for Harsh Shifts and Delayed or Harsh Garage Shift Engagements - (May 22, 2017) Subject:  8L45 8L90 Diagnostic Tips for Harsh Shifts and Delayed or Harsh Garage Shift Engagements Brand: Model: ... Read More

#16-NA-361: Information on Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle - (Apr 6, 2017) Subject:  Information on Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle ... Read More

#16-NA-404: Harsh Shift, Delayed Shift, unwanted Downshift, Transmission Stuck in One Gear, Erratic Shifting, Hesitation or Have a Malfunction Indicator Lamp (MIL) Illuminated - DTC P0747, P0777, P0797, P2715 or P2724 May Be Set Current or History in... Read More

Less than 100 1955 Corvettes were built with the 3-speed manual transmission.  This Chevrolet Technical Service Bulletin, DR #236 covers all of those Corvettes.  This information is not in the 1955 Chevrolet Shop Manual.   Read More

Subject: Gear Block-Out and High Shifting EffortModel and Year: 1963 1000 Series and Corvette with Muncie 4-Speed TransmissionSource: Chevrolet Technical Service BulletinNumber: DR #611, Section VIIDate: August 7, 1963 TO:  ALL CHEVROLET DEALERS... Read More