October 2024 – TechLink

Archive for October, 2024

Oil Pump Assembly Oil Pressure Relief Valve Condition

There may be low oil pressure in the 5.3L V8 engine (RPO L84) or 6.2L V8 engine (RPO L87) on some 2019-2024 Silverado 1500, Tahoe, Suburban, Sierra 1500, Yukon; and […]

October 31, 2024 —

Unable to Fill the DEF Tank

The Diesel Exhaust Fluid (DEF) tank may appear to be empty shortly after beginning a towing trip or it may be difficult to properly fill the DEF tank on some […]

October 31, 2024 —

October Service Newsletter from the Experts at GM TAC

The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the October GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]

October 31, 2024 —

New TAC Action Center for 2025 Tahoe, Suburban, Yukon and Yukon XL

A 2025 Full-Size SUV Action Center for U.S. dealerships has been established by the GM Technical Assistance Center (TAC) to provide feedback on the new 2025 Tahoe, Suburban, Yukon and […]

October 31, 2024 —

Techline Connect Moving to Microsoft Azure Platform — New Login Features

GM has recently begun moving authentication for several applications, including Service Workbench and Techline Connect, to Microsoft Azure, which offers additional security, a variety of application development tools and an […]

October 25, 2024 —

Techline Connect Browser Launch Update

The Techline Connect (TLC) browser launch page (Fig. 3) for users in several U.S. states was updated recently to improve overall application stability, allow for faster updates and enhance resolution […]

October 25, 2024 —

Using the NACS DC Adapter to Access the Tesla Supercharger Network

GM EV customers with a GM-approved North American Charging Standard (NACS) DC adapter now have access to more than 17,800 Tesla Superchargers throughout the U.S. and Canada to quickly charge […]

October 25, 2024 —

Power Hood (eTrunk) Offers Several Open/Close Methods

The power hood, (eTrunk™), available on the 2022-2025 HUMMER EV Pickup; 2024-2025 HUMMER EV SUV; 2024-2025 Silverado RST EV; and 2024-2025 Sierra Denali EV offers secure storage in the front […]

October 25, 2024 —

Addressing Brake Noise Requires Regular Maintenance

Some 2025 Corvettes may have an excessive squeal or squeak sound from the front brakes. (Fig. 16, optional equipment shown) The sound normally only occurs on initial brake applications after […]

October 25, 2024 —

2025 Battery Ratings Chart and Battery Maintenance Update

The latest Original Equipment (OE) Battery Ratings chart for the 2025 model year is now available under the Reference Charts menu for use when testing OE batteries. (Fig. 1) […]

October 10, 2024 —

Long TCSC Hold Times – Counterfeit MDI Devices

Recently, the Techline Connect Support Center (TCSC) has received a substantial increase in call volume. As the increase in calls drives up the wait time to talk to an agent, […]

October 10, 2024 —

Engine Coolant Leak from Water Pump

An engine coolant leak may be noticed on the ground or on the front of the engine after the vehicle has been parked for a while on some 2023-2024 Corvette […]

October 10, 2024 —

FSE Technician Recognition Awards – 3rd Quarter 2024

The GM Field Service Engineer (FSE) Technician Recognition Awards (U.S.) celebrate the skill and dedication of dealership technicians who have recently worked with FSEs on challenging repairs. Technicians at GM […]

October 10, 2024 —

GM Service Know-How Emerging Issues

The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar looks at sunroof sunshade repair. (Fig. 16) Fig. […]

October 10, 2024 —