Archive for December, 2017

New Medium-Duty Truck Essential Tools Shipped to Dealerships

New Medium-Duty Truck Essential Tools Shipped to Dealerships

The 2018 Low Cab Forward medium-duty 4500, 5500 and 6500-series trucks (Fig. 1) are available with a variety of upfit equipment and bodies provided by independent suppliers. Several new essential […]

December 31, 2017
When to Perform a Diesel Service Regeneration

When to Perform a Diesel Service Regeneration

A change was implemented recently in the values of the Diesel Particulate Filter (DPF) Soot Accumulation parameter displayed in GDS 2. On all 2016-2018 Colorado and Canyon models and 2017-2018 […]

December 31, 2017
Broken Quarter Upper Panel Trim

Broken Quarter Upper Panel Trim

The trim door on a quarter upper trim panel (Fig. 8) on some 2016-2018 Camaro convertible models may malfunction or may make a noise during convertible top operation. In some […]

December 31, 2017
Inoperative Sunshade Auto Open Feature

Inoperative Sunshade Auto Open Feature

Some 2017-2018 Acadia (VIN N) and 2018 Enclave and Traverse models equipped with a sunroof (RPO C3U) may have a broken front sunshade latch handle or the automatic open feature […]

December 31, 2017
No Memory Features for Driver 3 or 4

No Memory Features for Driver 3 or 4

After adding additional keys/fobs (Remote Keyless Entry transmitters) on some 2014 Silverado 1500, Sierra 1500; 2015-2018 Silverado, Sierra, Tahoe, Suburban, Yukon and Escalade models equipped with Automatic Memory Recall (RPO […]

December 31, 2017
Close TAC Cases Using the Dealer Case Management System

Close TAC Cases Using the Dealer Case Management System

The Dealer Case Management (DCM) system that was introduced nationwide (U.S. only) in August 2017 was designed to simplify communication with GM dealerships while increasing the speed and efficiency of Technical Assistance […]

December 20, 2017
Latest AFIT Software Updates High-Pressure Fuel Pump Coverage

Latest AFIT Software Updates High-Pressure Fuel Pump Coverage

The latest software release for the Active Fuel Injector Tester, or AFIT, (CH-47976) is now available. The release (CH-47976-230) updates the fuel pressure regulator software used in the AFIT DMU […]

December 20, 2017
Proper 6.2L V8 Charge Air Cooling System Draining

Proper 6.2L V8 Charge Air Cooling System Draining

The 6.2L V8 engine (RPO LT4) available in 2016-2018 Camaro ZL1, Corvette Z06 and CTS-V models features an Eaton Roots-type supercharger (Fig. 6) that creates a maximum boost pressure of 9.7 […]

December 20, 2017
Reconnect Fog Lamps after Accessory Installation

Reconnect Fog Lamps after Accessory Installation

When installing GM Accessories, such as a front grille or front bow tie accessory, on 2015-2018 Colorado and Canyon models (Fig. 8), all associated components must be reconnected before installation […]

December 20, 2017
Transfer Components during New Seat Frame Installation

Transfer Components during New Seat Frame Installation

When replacing the seat cushion frame on any GM model, it’s critical to transfer the necessary parts from the current seat frame to the new frame. Recently, the GM Warranty […]

December 20, 2017
Normal Tailgate Cable Slack

Normal Tailgate Cable Slack

With the tailgate down, one of the tailgate cables may appear to have slack in it on some 1998-2000 Chevrolet C/K Classic, GMC C/K Classic; 1998-2004 S10, Sonoma; 1999-2018 Silverado […]

December 20, 2017
Service Know-How

Service Know-How

10217.12V – Emerging Issues December 14, 2017   The latest service topics from Brand Quality and Engineering are reviewed, including an in-depth look at fluid leakage vs. seepage (Fig. 16) […]

December 20, 2017