To: Dealer Principals, General Managers, Sales Managers, Service Managers (Chevrolet, Pontiac, GMC, Buick, Saturn, and Cadillac) Subject: Change in the GM Nav Disc Update Program Models: All 2008 models with factory-installed, in-vehicle... Read More

Summary Report on Changes to Achieve Improvement in Corvette Handling and Ride Below is a Chevrolet Inter-Organizational Letter dated March 29th, 1954 by Zora Arkus-Duntov addressing Maurice Olley's concerns about the Corvette's ride and handling... Read More

Subject:   Rough Idle or Vibration Model and Year:  2014 - 2015 Corvette Source:  GM TechLink Page Number:  NA Date:  October 8, 2014 On some 2014 - 2015 Corvette, Silverado, Sierra and 2015 Tahoe, Suburban... Read More

This information applies to the 2004 Cadillac XLR and the 2005 Chevrolet Corvette and newer.Use special care when removing or installing the HVAC module for service. The HVAC module is seated between a non-removable upper and lower tie bar(fig. 11 -... Read More

Source: GM TechlinkDate: October 2010Subject:  Electronic Brake Control Module CommunicationModels: 2009 - 2011 Chevrolet Corvette On some 2008-2011 Enclave; 2007-2011 Escalade, Escalade ESV, Escalade EXT, Avalanche, Silverado, Suburban,... Read More

2020 Corvette: Misfire and Engine Noise Condition October 28, 2020 Some 2020 Silverado, Sierra; 2020-2021 Camaro; 2021 Corvette, Tahoe, Suburban, Yukon, and Escalade models equipped with the 5.3L engine (RPOs L82, L84), 6.2L engine (RPOs L87, LT1,... Read More

2020 Corvette: DTCs Set in the TCM October 28, 2020GM TechLink Some 2020 Corvettes may have an illuminated Check Engine MIL and a reduced engine power message on the instrument cluster with no noticeable performance issues. DTCs P1967 (Serial Data... Read More

Delayed Transmission Engagement September 30, 2020GM TechLink Some 2018 - 2019 ATS, CTS, CT6, Corvette; 2018 - 2020 Express; 2018 - 2021 Camaro, Colorado, Silverado, Canyon, Savana, Sierra; and 2021 CT4 models equipped with the 8L45 or 8L90 8-speed... Read More

2020 Corvette Exterior Protective Cover Removal August 31, 2020GM TechLink The exterior protective cover that wraps every 2020 Corvette (Fig. 20) to help shield the paint and body during shipping to the dealership should always be removed prior to... Read More

2020 Corvette Hood Access Update August 31, 2020GM TechLink An Over-The-Air (OTA) update for the 2020 Corvette was sent out recently that changed the Body Control Module (BCM) calibration for opening the hood, or front trunk, (Fig. 2) using the... Read More