Battery Testing Guidelines Using the GR8 Battery Tester/Charger or Diagnostic Charge Battery Station

Battery Testing Guidelines Using the GR8 Battery Tester/Charger or Diagnostic Charge Battery Station

When testing or charging a 12V battery in a vehicle that is in for service or is part of the dealership’s inventory, the EL-50313 Midtronics GR8 Battery Tester/Charger or EL-52800 […]

November 13, 2020
New 2019-2021 OE Battery Ratings Chart

New 2019-2021 OE Battery Ratings Chart

A new Original Equipment (OE) Battery Ratings chart is now available for use when testing batteries using the EL-50313 GR8 Battery Tester/Charger and EL-52800 Diagnostic Charge Battery Station (DCBS). The […]

November 13, 2020
GDS2 Transitioning from TIS2Web to Techline Connect

GDS2 Transitioning from TIS2Web to Techline Connect

Techline Connect is quickly becoming the source for all diagnostic applications in the dealership service department. As part of the transition to Techline Connect, GDS2 is now being removed from […]

November 12, 2020
Techline Connect Updates and Local Admin Rights

Techline Connect Updates and Local Admin Rights

One of the most commonly asked questions regarding Techline Connect is why admin rights are required to install and run the application. The quick answer is simple: Microsoft Windows 10 […]

November 12, 2020
Diagnostic Charge Battery Station Software Update Now Available

Diagnostic Charge Battery Station Software Update Now Available

A new software update (DCAG1-30) is now available for the EL-52800 Diagnostic Charge Battery Station (DCBS) (Fig. 8). The DCBS replaces the EL-50313 Midtronics GR8 Battery Tester/Charger and is available […]

November 12, 2020
Install New Rear Toe Links Before Adjusting Rear Toe

Install New Rear Toe Links Before Adjusting Rear Toe

When servicing the rear suspension on 2010-2016 Cadillac SRX and 2011-2012 Saab 9-4X models, the Service Information has been updated recently to require the replacement of both right and left […]

November 12, 2020
Deletion of Manual Park Release Cable

Deletion of Manual Park Release Cable

The 2021 Acadia, Terrain, Yukon; CT4, CT5, Escalade, XT4, XT5, XT6; Enclave; Tahoe and Suburban models no longer have a manual park release cable and pull handle under the front […]

November 12, 2020
Damaged Crankshaft Position Sensor and Reluctor Ring

Damaged Crankshaft Position Sensor and Reluctor Ring

Some 2020-2021 Encore GX and 2021 Trailblazer models equipped with the 1.2L engine (RPO LIH) may have a no start condition and DTCs P0335 (Crankshaft Position Sensor Circuit) and P0336 […]

November 12, 2020
Wiring Harness Conditions on the 2.8L Diesel Engine

Wiring Harness Conditions on the 2.8L Diesel Engine

A number of conditions regarding engine performance and air conditioning operation on some 2016-2021 Colorado and Canyon models equipped with the 2.8L diesel engine (RPO LWN) may be due to […]

November 12, 2020
Techline Connect Tips – Getting the Most Out of the All-in-One Application

Techline Connect Tips – Getting the Most Out of the All-in-One Application

Techline Connect brings together all the common resources technicians use every day for diagnosis and repairs in an all-in-one application. The all-new application has a single sign-on for access to […]

October 28, 2020
HVAC Afterblow Feature Enabled at the Factory

HVAC Afterblow Feature Enabled at the Factory

The Afterblow feature is now enabled from the factory on 2021 Acadia (Fig. 12), Blazer, Bolt EV, XT5 and XT6 models. Previously, the Afterblow feature was disabled when the vehicle […]

October 28, 2020
Misfire and Engine Noise Condition

Misfire and Engine Noise Condition

Some 2020 Silverado, Sierra; 2020-2021 Camaro; 2021 Corvette, Tahoe, Suburban, Yukon, and Escalade models equipped with the 5.3L engine (RPOs L82, L84), 6.2L engine (RPOs L87, LT1, LT4, LT2), or […]

October 28, 2020
Excessive Load on Trailer Running Lamps

Excessive Load on Trailer Running Lamps

The trailer running lamps may illuminate momentarily and then turn off or may flash when connected to 2019 Silverado 1500 and Sierra 1500 models. When operating a trailer running lamp […]

October 28, 2020
DTC P2101 Set in History

DTC P2101 Set in History

DTC P2101 (Throttle Actuator Position Performance) may be set in history on some 2020-2021 CT5 models equipped with the 2.0L engine (RPO LSY). If DTC P2101 is set, complete all […]

October 28, 2020
Tapping Sound from Engine

Tapping Sound from Engine

Some 2020-2021 Encore GX and 2021 Trailblazer models equipped with the 1.3L engine (RPO L3T) may have a tapping sound coming from the engine that may sound similar to a […]

October 28, 2020
Diagnosing Inoperative Gauges, Communication Concerns Setting DTCs

Diagnosing Inoperative Gauges, Communication Concerns Setting DTCs

Some 2017-2018 Silverado, Sierra; 2017-2020 Tahoe, Suburban, Yukon, Escalade; 2019 Silverado LD, Silverado 2500/3500, Sierra Limited, Sierra 2500/3500; and 2019-2020 Silverado 4500HD/5500HD/6500HD models may have several communication concerns resulting in […]

October 28, 2020
DTCs Set in the TCM

DTCs Set in the TCM

Some 2020 Corvettes may have an illuminated Check Engine MIL and a reduced engine power message on the instrument cluster with no noticeable performance issues. DTCs P1967 (Serial Data Message […]

October 28, 2020
Battery Condition Prognostics Integrated into Techline Connect

Battery Condition Prognostics Integrated into Techline Connect

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 […]

October 19, 2020
New GM Global Electronic Parts Catalog Release Offers Multiple Enhancements, Search Functions

New GM Global Electronic Parts Catalog Release Offers Multiple Enhancements, Search Functions

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 […]

October 13, 2020