The GE-52250 PowerSmoke Diagnostic Leak Detector (Fig. 1), now an essential tool shipping to all dealerships, can be used to help find induction and exhaust system leaks on 2010-2020 GM […]
An Over-The-Air (OTA) update for the 2020 Corvette was sent out recently that changed the Body Control Module (BCM) calibration for opening the hood, or front trunk, (Fig. 2) using […]
A missing exhaust isolator (Fig. 5) on 2020 Silverado and Sierra models equipped with the 3.0L Duramax diesel engine (RPO LM2) and the single exhaust system (RPO NB5) should not […]
The Field Service Engineer (FSE) Technician Recognition Awards (U.S.), a new recognition program that celebrates the skill and dedication of dealership technicians who have recently worked with FSE’s on challenging […]
Some 2021 Tahoe, Suburban, and Yukon models may have a rattle sound at the rear of the vehicle. The sound may be from the liftgate or liftglass. There are several […]
The exterior protective cover that wraps every 2020 Corvette (Fig. 20) to help shield the paint and body during shipping to the dealership should always be removed prior to vehicle […]
The air conditioning may blow warmer on the driver’s side of the vehicle on some 2019-2020 Silverado 1500 and Sierra 1500 models built at the Silao assembly plant (the plant […]
A flutter, rattle or similar wind noise may be heard from either the left front end and/or right front end of the vehicle at highway speeds on some 2021 Tahoe […]
The diesel exhaust system on 2017-2018 Silverado and Sierra models and 2019-2020 Silverado 2500/3500 and Sierra 2500/3500 models equipped with the 6.6L Duramax diesel engine (RPO L5P) (Fig. 1) requires […]
The latest software update (CH-47976-SWV13) for the CH-47976 Active Fuel Injector Tester (AFIT) has recently been released. The new update adds 2021 model year applications (up to October 31, 2020) […]
After installing a GM remanufactured High Feature V6 (HFV6) engine in some 2007-2009 G6; 2007-2010 Aura, Outlook; 2007-2011 STS; 2007-2012 Malibu; 2007-2016 Allure (Canada only), LaCrosse, CTS, SRX; 2007-2017 Equinox, […]
Some 2020 Silverado 2500/3500 and Sierra 2500/3500 models may have a brake squeal condition caused by the low scorch friction material used on the original brake pads. New brake pads […]
A whine, rattle or flutter sound may be heard coming from the front end of some 2020 Blazer models when driving at highway speeds. The sound is dependent on wind […]
Some 2016-2019 ATS models and 2016-2020 Camaro models equipped with the 6-speed manual transmission (RPO M13) may have an illuminated Check Engine MIL and DTC P17A2 (Transmission Clutch Slip Detected) […]
A boom sound or flutter vibration may be noticed on some 2020 Encore GX models equipped with the 1.3L engine (RPO L3T) at low speeds with light throttle input. If […]
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 […]
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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