Some 2020-2024 Silverado 2500/3500 and Sierra 2500/3500 models equipped with the 10L1000 10-speed automatic transmission (RPO MGM, MGU) and four-wheel drive transfer case (RPO NQF, NQH) may have a fluid […]
A single bump feeling may be felt when coming to a stop on some 2017-2022 Encore and Trax models equipped with the 6T40 6-speed automatic transmission (RPO MNH, MNK) and […]
Some 2011-2016 Cruze; 2012-2020 Sonic; and 2013-2020 Encore and Trax models equipped with the 1.4L engine (RPO LUV) may experience a loss of power or several other engine performance conditions […]
A starter grinding sound or free spinning sound under the hood may be heard on some 2019-2020 Enclave and Traverse models equipped with the 3.6L V6 engine (RPO LFY). In […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the May GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
Before replacing a high voltage battery pack or battery section on 2017-2023 Bolt EV and 2022-2023 Bolt EUV models (Fig. 10), the battery pack must be correctly identified. Fig. […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar covers electric vehicle battery pack uncrating and crating with […]
The trailering app (RPO ZL6) available on 2020-2022 Silverado 1500, Silverado 2500HD/3500HD, Sierra 1500 and Sierra 2500HD/3500HD trucks includes Trailer Tire Pressure and Temperature Monitoring. (Fig. 1) As part of […]
Many 2020-2023 GM models feature USB ports for mobile device charging and data connection. If a smartphone or other device does not charge or transfer data properly when connected to […]
Recently, a number of 8-speed and 10-speed transmissions have been returned to the Warranty Parts Center with missing or unreadable Transmission Unique Label (TUN) labels. In some cases, the label […]
A high-pitched whistling or squeal sound may be heard at idle on some 2022-2023 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models equipped with the 6.6L V8 gasoline engine (RPO L8T). The […]
The EL-52552 COAX FAKRA Cable Adapter Kit can help in diagnosing a variety of coax cables, including Wi-Fi, cameras, headliner cables, A-pillar cables and more. Diagnosing coax cables routed through […]
When addressing an engine misfire condition on some 2014 Silverado 1500, Sierra 1500; 2014-2019 Corvette; 2015-2018 Silverado, Sierra; 2015-2020 Tahoe, Suburban, Yukon, Escalade; 2016-2019 CTS-V; 2016-2023 Camaro; and 2019 Silverado […]
Some 2022-2023 Trailblazer and Encore GX models equipped with the 1.3L engine (RPO L3T) may have an illuminated Check Engine MIL and DTC P2B95 (Injection Pulse Performance During Cold Start) […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the April GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
The Service Advisor Vehicle Interface (SAVI) service lane scan tool streamlines the vehicle walkaround process for service advisors in GM dealerships (U.S.) and accurately provides a variety of critical vehicle […]
There are several possible methods – both wired and wireless – to connect with the MDI 2 (EL-52100). (Fig. 8) Which is best for you depends on typical use of […]
With the MDI Manager application software, the MDI 2 can be configured to communicate with a PC using several possible networks, such as a USB cable, ethernet cable, Wireless Local […]
The GM Field Service Engineer (FSE) Technician Recognition Awards (U.S.) celebrate the skill and dedication of dealership technicians who have recently worked with FSE’s on challenging repairs. Technicians at GM […]
The Techline Customer Support Center (TCSC) has released their latest tips for Techline Connect and the Service Programming System. The tips — included in the easy-to-print PDF below — cover […]
Corvette E-Ray Delivers Electrified AWD Performance
Corvette E-Ray 12-Volt Lithium-Ion Battery
Power Liftgate Battery Draw Conditions
April Service Newsletter from the Experts at GM TAC
New Design Intake Manifold Addresses Poor Engine Performance
Free Spinning or Grinding Starter Sounds
May Service Newsletter from the Experts at GM TAC
New Battery Cell Chemistry Identification
GM Service Know-How Emerging Issues
New Trailer Tire Pressure Sensors Offer Increased Capability
Inoperative USB Port Diagnosis
Avoid the TUN# Label When Cleaning Transmission Cases
High-Pitched Whistling Sound at IdleGM Dealer Equipment (GMDE)
TAC Newsletter June 2024
TAC Newsletter May 2024
Techline Connect Tips June 2024
The design of today’s modern vehicles — and the proper operation of many new components and systems — has led to the critical importance of properly balanced and low Road […]
With the MDI Manager application software, the MDI 2 can be configured to communicate with a PC using several possible networks, such as a USB cable, ethernet cable, Wireless Local […]
Take a detailed look at a wide range of innovative features and advanced systems found on GM vehicles to gain a better understanding of proper operation. Each short video reviews how a feature works, highlights operating tips and shows ways to customize settings, if applicable.
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