Work It: All-New 2020 Chevrolet Silverado HD and GMC Sierra HD Debut

Work It: All-New 2020 Chevrolet Silverado HD and GMC Sierra HD Debut

Bigger, stronger and more powerful than ever, the completely new 2020 Chevrolet Silverado 2500HD/3500HD (Fig. 1) and GMC Sierra 2500HD/3500HD (Fig. 2) trucks offer increased capability and an expanded range […]

June 27, 2019
2020 Silverado HD and Sierra HD Powertrains

2020 Silverado HD and Sierra HD Powertrains

The all-new 2020 Silverado HD (Fig. 9) and Sierra HD trucks offer two powertrain choices: the all-new 6.6L V8 gasoline engine (RPO L8T) paired with the 6-speed 6L90 automatic transmission […]

June 27, 2019
All-New Allison 10-Speed Automatic Transmission

All-New Allison 10-Speed Automatic Transmission

The all-new Allison 10-speed 10L1000 automatic transmission (RPO MGM, MGU) available on 2020 Silverado HD and Sierra HD models equipped with the 6.6L Duramax diesel engine combines enhanced performance, fuel […]

June 27, 2019
Spray-in Bed Liner Repairs

Spray-in Bed Liner Repairs

A spray-in bed liner (RPO CGN, PDL) is available on 2013-2014 Silverado HD 2500/3500, Sierra HD 2500/3500; 2014 Silverado 1500, Sierra 1500; and 2015-2019 Colorado, Silverado, Canyon and Sierra models. […]

June 27, 2019
Coolant Heat Shrink Hose Clamp

Coolant Heat Shrink Hose Clamp

The 2019 Silverado 4500HD/5500HD/6500HD is equipped with the 6.6L Duramax diesel engine (RPO L5D). The engine uses heat shrink clamps to secure the engine coolant hoses. (Fig. 24) If a […]

June 27, 2019
Update: Phone Ringtone Plays Continuously After Incoming Call

Update: Phone Ringtone Plays Continuously After Incoming Call

The ringtone on a mobile phone may sound continuously through the vehicle speakers after an incoming call on some 2018-2019 Sonic, Trax, Terrain; and 2019 Blazer, Camaro, Colorado, Equinox, Malibu, […]

June 27, 2019
Broken Spark Plug Center Isolator

Broken Spark Plug Center Isolator

An engine misfire condition and DTC P0300 (Engine Misfire Detected) may be found on some 2016-2019 Cruze models with the 1.4L engine (RPO LE2); 2016-2019 Malibu models with the 1.5L […]

June 27, 2019
Transmission Valve Body Part Unique Number

Transmission Valve Body Part Unique Number

The 10L80 and 10L90 10-speed automatic transmissions (RPO MHS, MHW, MF6, MGL, MQB) available on 2017-2019 Camaro, 2018-2019 Escalade, Tahoe, Yukon Denali, 2019 CT6, Silverado 1500, Sierra 1500, and Suburban […]

June 27, 2019
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