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) […]
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 […]
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) […]
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 […]
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 […]
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 […]
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 […]
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 […]
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, […]
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 […]
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 […]
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 […]
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 […]
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 […]
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) […]
Many times, common warranty repairs like HVAC blower motor replacements require that the part be returned to GM. Just like other vehicle components that are returned under warranty, HVAC blower […]
Some 2024 Silverado EV, HUMMER EV and HUMMER EV SUV models that have just arrived at the dealership may not charge initially when the vehicle is connected to a Level […]
There may be high resistance in the G132 and G133 grounds, located behind the right-hand wheelhouse liner on some 2019-2022 Silverado 1500 and Sierra 1500 models. (Fig. 5) As a […]
The 110/120-volt power outlet may be inoperative on some 2020-2023 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models. Vehicles may have two alternating current power outlets, located in the cab on the […]
Some 2020-2024 XT5 and XT6 models may have the Forward Collision Alert indicator shown on the windshield at all times. (Fig. 9) The indicator may be on any time the […]
Transmission Whine Sound
March Service Newsletter from the Experts at GM TAC
Vehicle Alignment and Super Cruise
Rear Axle Differential Lock Control Actuator Condition
Diesel Exhaust Fluid Supply Pipe Contamination
FSE Technician Recognition Awards – 1st Quarter 2024
Crankshaft Bearing Diagnosis
Convertible Top Water Leak
Power Tonneau Cover Tips
GM Service Know-How Emerging Issues
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 StartGM Dealer Equipment (GMDE)
TAC Newsletter March 2024
TAC Newsletter February 2024
Techline Connect Tips March 2023
The EL-52800 Diagnostic Charge Battery Station (DCBS) is the recommended and approved tool for diagnosing battery replacements and submitting battery warranty claims. And effective January 1, 2024, the DCBS (Fig. […]
A new feature will make logging into Techline Connect easier and quicker for users. Previously, Techline Connect had its own unique login, using the Techline Connect desktop icon, and users […]
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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