All-New 2020 Cadillac XT6 Joins Luxury SUV Market

All-New 2020 Cadillac XT6 Joins Luxury SUV Market

The all-new 2020 XT6 (Fig. 1) is Cadillac’s newest entry in the three-row luxury SUV market. Available as Premium Luxury and Sport models, the XT6 offers a luxurious cabin, refined […]

June 20, 2019
Powertrain Sections Being Consolidated, Reducing Links in the Service Information

Powertrain Sections Being Consolidated, Reducing Links in the Service Information

When reviewing Engine Mechanical repair procedures in the Service Information, technicians will find instructions divided into Repair Instructions – On Vehicle and Repair Instructions – Off Vehicle. As a result, […]

June 20, 2019
Brake Pulsation or Uneven Front Brake Pad Wear

Brake Pulsation or Uneven Front Brake Pad Wear

Some 2014-2018 Silverado 1500, Sierra 1500; 2015-2019 Escalade, Tahoe, Suburban, Yukon; and 2019 Silverado LD and Sierra Limited models may have a brake pulsation or a grinding sound coming from […]

June 20, 2019
Service Procedures and Labor Times Updated

Service Procedures and Labor Times Updated

The GM Service Information on the 6.6L diesel engine (RPO LML) and 1.4L and 1.5L gasoline engines (RPO LE2, LFV) was recently updated with several new service procedures and labor […]

June 20, 2019
Limited Vehicle Speed on the CT6 PLUG-IN

Limited Vehicle Speed on the CT6 PLUG-IN

Vehicle speed may be limited on some 2016-2018 CT6 PLUG-IN models (RPO HP9) equipped with the 2.0L 4-cylinder engine (RPO LTG) and automatic-hybrid electric transmission (RPO MRD). DTC P0747 (Transmission […]

June 20, 2019
Diagnosing DTC P3075

Diagnosing DTC P3075

If DTC P3075 (Engine Coolant Pump Low Current Performance) is set on a 2019 XT4 equipped with the 2.0L 4-cylinder engine (RPO LSY) or a 2019 Silverado 1500 or Sierra […]

June 20, 2019
Disconnected Charge Air Cooler Outlet Air Tube

Disconnected Charge Air Cooler Outlet Air Tube

The charge air cooler outlet air tube may be disconnected on some 2019 Equinox, Terrain, and Malibu models equipped with the 1.5L 4-cylinder engine (RPO LYX). As a result, the […]

June 20, 2019
GM Service Know-How

GM Service Know-How

The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM certified repairs. The latest service topics from GM Brand Quality and Engineering covered in […]

June 20, 2019
New GM Service Technical College App Provides Quick Access to Training Information

New GM Service Technical College App Provides Quick Access to Training Information

If you’re looking for more information about World Class Technician certification, want to download the Automotive Technician Recruiting & Retention Dealer Playbook, or would like more details about the new […]

May 30, 2019
Share Your Feedback on GM Service Information

Share Your Feedback on GM Service Information

The GM Service Information is updated daily in order to provide technicians with the latest, most accurate information available to quickly and correctly service GM vehicles. By taking a moment […]

May 30, 2019
Viewing and Emailing GDS 2 Session Files Helps with Diagnosis

Viewing and Emailing GDS 2 Session Files Helps with Diagnosis

The GM Global Diagnostic System 2 (GDS 2) provides for quick and simple data acquisition when communicating and diagnosing vehicle on-board electrical systems. While using GDS 2, it records all […]

May 30, 2019
Proper GM Accessory Assist Step Installation

Proper GM Accessory Assist Step Installation

The GM Accessory Assist Steps available on 2014-2019 Silverado, Sierra; and 2015-2019 Tahoe, Suburban, Yukon, Colorado and Canyon models help make it easier to get in and out of the […]

May 30, 2019
Corvette ZR1 Rear Spoiler Adjustment

Corvette ZR1 Rear Spoiler Adjustment

The rear spoiler of the 2019 Corvette ZR1 (Fig. 18) is installed at the dealership during the Pre-Delivery Inspection (PDI). After installation of the rear spoiler, it may be noticeable […]

May 30, 2019
Rattle Sound near Front of Engine

Rattle Sound near Front of Engine

The 2019 XT4 may have a rattle sound heard near the front of the 2.0L 4-cylinder engine (RPO LSY) due to a stuck or collapsed timing chain tensioner and, as […]

May 30, 2019
PCV Crankcase Pressure Control Diaphragm

PCV Crankcase Pressure Control Diaphragm

DTC P0171 (Fuel Trim System Lean) may be set in the Engine Control Module (ECM) and the Check Engine MIL may be illuminated on some 2011-2016 Cruze; 2012-2015 Volt; 2012-2019 […]

May 30, 2019
Whine Sound from Under Center of Vehicle

Whine Sound from Under Center of Vehicle

Some 2016-2017 CT6 models may have an intermittent whine sound from under the vehicle. The sound may be more pronounced under acceleration. The sound may be caused by contact between […]

May 30, 2019
Updated Essential Tool GE-52200-A Powertrain Lift Table Now Shipping

Updated Essential Tool GE-52200-A Powertrain Lift Table Now Shipping

The updated GE-52200-A Powertrain Lift Table (Fig. 1) allows for easy removal and installation of powertrain and chassis components as well as fuel tanks, suspension components, and EV/PHEV high voltage […]

May 17, 2019