MDI 2 Advanced Setup Technical Tips Update
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 […]
Fuel Feed Pipe Buzzing Sound
Some 2017-2025 Camaro models equipped with the 6.2L V8 engine (RPO LT4) may have a buzzing, ticking or rattle sound coming from the passenger side of the vehicle. The sound […]
February 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 February GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
Exhaust Resonator Rattle
An exhaust rattle may be heard underneath the vehicle on some 2018-2024 Camaro models with the 3.6L engine (RPO LGX). The rattle may be most noticeable when starting the engine […]
Heated Steering Wheel Operation During a Remote Start
The 2023 XT5 and XT6 are available with two heated steering wheel options. These include the manual heated steering wheel (RPO UVD) and the automatic heated steering wheel (RPO KI3). […]
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 reviews Hands-Free Start operation on EVs. (Fig. 21) […]
2024 Essential Tool Forecast
The estimated 2024 GM Essential Tool forecast is now available for all U.S. dealerships. The forecast includes all expected Essential Special Service Tools along with shipment timing for the 2024 […]
Headlamps Flashing Due to Low Battery Charge
Some 2024 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks may have an electrical condition where the headlamps flash and/or the windshield wipers pause while wiping. DTC P0606 (Control Module Processor Performance) […]
PicoScope Recording for CVTs with Noise Concerns
Diagnosing a whine sound or other internal noise concern in 2019-2024 Malibu; 2020-2024 Encore GX; and 2021-2024 Trailblazer models equipped with the VT40 Continuously Variable Transmission (CVT) (RPO MRG) may […]
Dual Clutch Transmission MCVM PUN Characterization
Service Information repair procedures have been updated for repairs to the Dual Clutch Transmission (DCT) (RPO M1L) on 2020-2024 Corvette models. After making repairs to the DCT, including Main Control […]
Shift to Park Message
A Shift to Park message may be displayed on the Driver Information Center while the vehicle is in Park on some 2020-2023 Encore GX, Malibu; and 2021-2023 Trailblazer models. A […]
2024 Technician Excellence Program Rewards Dealership Technicians for Training Achievements
The 2024 Technician Excellence Program (U.S.) recognizes and rewards enrolled dealership technicians for achieving technical training certifications and meeting other service criteria. (Fig. 1) The primary 2024 program metrics are […]
Hands-Free Start Power Modes
The 2024 Silverado EV and Blazer EV are equipped with Hands-Free Start, which automatically starts the vehicle when the driver enters the cabin with a remote key fob and then […]
Poor Ground Path Condition
Some 2020-2024 CT4 and CT5 models may have a no start condition and/or a loss of power steering. Communication DTCs U0101, U0131, U0401, U0402, U1611, U1818, U1962, U220F, U3003 sym16, […]
Inoperative Trunk Latch
Some 2023-2024 Camaros may have a trunk lid that does not open when commanded from the vehicle’s trunk release buttons or the key fob. The inoperative trunk latch may be […]
New Service Tailpipes Available for Silverado and Sierra
GM Customer Care and Aftersales has released new service tailpipes and clamps for exhaust repairs on 2019–2024 Silverado 1500 and Sierra 1500 models equipped with the 4.3L (RPO LV3) and […]
Lunch with Your FSEs Meetings Now Offer Three Convenient Call Times
GM dealership technicians (U.S. only) looking to get the latest technical information as well as talk with their Field Service Engineers (FSEs) about recent repairs seen in the dealership should […]
Loud Sound Inside the Cabin at Low RPMs
A loud sound may be heard inside the cabin at 1,200–2,500 RPMs on some 2024 XT4 models. (Fig. 6) The sound typically occurs only during one drive cycle and does […]
January 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 January GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
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 demonstrates the pierce probing wires procedure. (Fig. 8) […]
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Previous Articles
MDI 2 Advanced Setup Technical Tips Update
Fuel Feed Pipe Buzzing Sound
February Service Newsletter from the Experts at GM TAC
Exhaust Resonator Rattle
Heated Steering Wheel Operation During a Remote Start
GM Service Know-How Emerging Issues
2024 Essential Tool Forecast
Headlamps Flashing Due to Low Battery Charge
PicoScope Recording for CVTs with Noise Concerns
Dual Clutch Transmission MCVM PUN Characterization
Shift to Park Message
2024 Technician Excellence Program Rewards Dealership Technicians for Training Achievements
Hands-Free Start Power Modes
Poor Ground Path Condition
Inoperative Trunk Latch
GM Dealer Equipment (GMDE)
TAC Newsletter April 2024
TAC Newsletter March 2024
Techline Connect Tips March 2023
