Techline Connect, GM’s next generation diagnostic application, has released a new tool to help determine the condition of a vehicle’s battery. Battery Condition is determined using “Power of Green;” a […]
A new version of the GM Global Electronic Parts Catalog (EPC) will be released on October 17, 2020 with a number of enhanced features and functionality. (Fig. 1) The Q.link™-supported […]
The Rear Seat Media system available in the new 2021 Tahoe, Suburban, Yukon, and Escalade offers high-definition entertainment using two touchscreen displays and two infrared headsets. (Fig 8) Rear seat […]
After cycling a 3rd-row seat to the up position on some 2021 Tahoe, Suburban and Yukon models, the headrest may not return to or stay in the upright position. In […]
Some 2020-2021 Silverado and Sierra models equipped with the 3.0L turbocharged Duramax diesel engine (RPO LM2) may exhibit a lack of performance along with DTCs P003A (Turbocharger Boost Control Position […]
A potential oil leak from the camshaft carrier gasket may be found on some 2019 CT6; 2019-2021 XT4; 2020-2021 Acadia, Blazer, CT4, CT5, XT5 and XT6 models equipped with the […]
The particulate matter sensor protection tube performance diagnostic may set a false DTC P1488 (Particulate Matter Sensor Temperature Circuit High Voltage) on some 2020 Silverado and Sierra trucks equipped with […]
Some 2020-2021 XT5 and XT6 models equipped with Night Vision (RPO UV3) may show a green, pixelated display in the Driver Information Center when Night Vision is selected. There are […]
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 […]
Damage to electrical terminals can lead to inaccurate test results, difficult diagnosis and system failures. When servicing a suspected wire/terminal issue, be sure to check for the following conditions: Any […]
When installing Limited Production Option (LPO) accessory wheel kits sourced from your local ADI (Fig. 4), a TPMS (Tire Pressure Monitoring System) learn is required as part of the wheel […]
When GM dealerships (U.S.) order new vehicles with Limited Production Option (LPO) accessory wheel kits, the vehicles will arrive at the dealership equipped with transit wheels. The LPO wheels (Fig […]
All 2017–2021 Camaro 1LE models feature a vinyl hood wrap that is applied before the cars arrive at the dealership. (Fig. 10) Several procedures should be followed to clean the […]
Some 2018-2019 ATS, CTS, CT6, Corvette; 2018-2020 Express; 2018-2021 Camaro, Colorado, Silverado, Canyon, Savana, Sierra; and 2021 CT4 models equipped with the 8L45 or 8L90 8-speed automatic transmission (RPO M5T, […]
Using the correct fastener in a given location can’t be stressed enough when performing repairs on today’s modern vehicle designs. Here’s an example why. A recent analysis of an air […]
Some 2020 CT4, Camaro, Escalade, Tahoe, Suburban, Yukon, Silverado 1500, Sierra 1500, Express, and Savana models equipped with an 8L45, 8L90, 10L60, 10L80, or 10L90 automatic transmission (RPO M5M, MF6, […]
Transport Mode is intended for use when shipping new GM models over long distances from the assembly plant. When enabled, It reduces the parasitic electrical load on the battery when […]
GE-52250 PowerSmoke Diagnostic Leak Detector Shipping Now as Essential Tool
Corvette Hood Access Update
Duramax Diesel Exhaust Isolator No Longer in Production
FSE Technician Recognition Awards – 2nd Quarter 2020
Liftgate or Liftglass Rattle Sound
Corvette Exterior Protective Cover Removal
Poor Driver’s Side A/C Performance
Flutter Sound at Front of the Vehicle
New Duramax Diesel 3.0L 6-Cylinder Engine Powers Up Silverado 1500, Sierra 1500
Diesel Exhaust Brake Operation
2020 Camaro Model Updates
Possible Engine Oil Contamination Conditions
Low Oil Pressure Conditions
Multiple DIC Messages and Loss of Low Speed LAN Communication
Auxiliary Transmission Fluid Pump Performance
Updated Engine Oil Capacities Chart
GM Service Know-How
Corvette Track Prep Requirements
Fuel Injection & Cooling System Tools
TechPRO Professional
Aftermarket Diagnostics
Tips for Warranty Reprogramming Events
Techline Connect Setup
for Updates
The latest software update for the EL-52545 TPMS/RF Tool (Fig. 18) is now available. The update adds the following features and enhancements: Trailer Tire Pressure Monitoring System (TPMS) learn and […]
The GlobalConnect App Center now features a tile for Techline Connect (TLC), enabling Techline Connect to be downloaded to a Techline personal computer (PC). To access the link, select the […]
GM models feature a variety of technology and new systems that may be unfamiliar to technicians and service consultants in GM dealerships. Following are several videos highlighting new features to […]
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