Archive for January, 2020

Power Folding Top Diagnostic Tips

Power Folding Top Diagnostic Tips

When servicing power folding top conditions on 2004-2009 XLR; 2005-2010 G6; 2005-2019 Corvette; 2011-2020 Camaro; and 2016-2019 Cascada convertible models (Fig. 1), it’s important to understand what is happening with […]

January 30, 2020
V8 Engine Vibration Condition at 1,200 RPM

V8 Engine Vibration Condition at 1,200 RPM

Some 2019-2020 Silverado 1500 and Sierra 1500 models equipped with the 5.3L or 6.2L V8 engine (RPOs L82, L84, L87) may have a vibration or drone sound around 40 mph […]

January 30, 2020
Get It Together with the New GM ToolNet Application

Get It Together with the New GM ToolNet Application

The newest service tool for GM Dealerships will help in organizing and managing their special service tools inventory. GM ToolNet, an innovative asset management application, will be launched by GM […]

January 30, 2020
Rough Running Engine in Extreme Cold Temperatures

Rough Running Engine in Extreme Cold Temperatures

A 2020 Silverado HD or Sierra HD equipped with the 6.6L V8 engine (RPO L8T) may have a rough idle or reduced engine power in very cold climates (-10°F or […]

January 30, 2020
Only 11-Digit PUN on Service Solenoid Body Assembly

Only 11-Digit PUN on Service Solenoid Body Assembly

After replacing the transmission, control valve solenoid body, or Transmission Control Module on 2017-2019 Cruze; 2017-2020 Malibu; 2018-2019 LaCrosse; 2018-2020 Enclave, Regal, Traverse, Terrain; 2019-2020 Envision, XT4, Blazer; and 2020 […]

January 30, 2020
Surround Vision Camera Diagnostics

Surround Vision Camera Diagnostics

The Surround Vision camera system (RPO UV2) available on a variety of GM models displays an overhead view of the area surrounding the vehicle, along with front or rear camera […]

January 30, 2020
Park Assist Control Module Falls Off CAN Bus

Park Assist Control Module Falls Off CAN Bus

The Park Assist Control Module (PACM) may fall off the Controller Area Network (CAN) bus when other control modules are serviced on some 2020 CT5 models due to incorrect PACM […]

January 30, 2020
GM Loan Tool Program Offers Cost-Effective Access to Special Tools

GM Loan Tool Program Offers Cost-Effective Access to Special Tools

The GM Loan Tool Program (LTP) supplements the U.S. Essential Tool Program as a cost-effective alternative to purchases of high cost and/or infrequently used special tools. It does not replace […]

January 16, 2020
Accessory Rear Seat Infotainment Turns Off When Doors are Closed

Accessory Rear Seat Infotainment Turns Off When Doors are Closed

The Accessory Rear Seat Infotainment (RSI) system on some 2018-2020 Enclave and Traverse models (Fig. 6) equipped with ventilated front seats (RPO KU9) may power off when the vehicle doors […]

January 16, 2020
DTC P0747 Setting at Engine Start-up

DTC P0747 Setting at Engine Start-up

DTC P0747 (Transmission Control Solenoid Valve 1 Stuck On) may be setting at engine start-up when the transmission is in Park on some 2017-2019 Cruze; 2017-2020 Malibu; 2018-2020 Enclave, Envision, […]

January 16, 2020
Engine Oil Overfill May Lead to Engine Vibration

Engine Oil Overfill May Lead to Engine Vibration

An engine vibration condition may occur when the vehicle is stationary or accelerating from a stop on some 2014-2018 Silverado, Sierra; 2015-2020 Escalade, Tahoe, Suburban, Yukon; 2016-2019 CTS-V; 2016-2020 Camaro; […]

January 16, 2020
Rear Fuel Tank and Fuel Transfer Conditions

Rear Fuel Tank and Fuel Transfer Conditions

Some 2015-2018 Silverado and Sierra models and 2019 Silverado 2500/3500 and Sierra 2500/3500 models equipped with the 6.6L Duramax diesel engine (RPOs LML, L5P) and dual fuel tanks (23.5 gallon/89 […]

January 16, 2020
Horn Sounds Muffled or Distorted

Horn Sounds Muffled or Distorted

The horn may sound muffled, distorted or sounds only the high note on some 2018-2020 Enclave and Traverse models. These horn conditions may be caused by a frequency that distorts […]

January 16, 2020
Front Brake Squeal Sound

Front Brake Squeal Sound

Some 2020 XT4 models may have a brake squeal sound at low speeds. (Fig. 17) The front brake pads on some models may be susceptible to producing brake squeal.   […]

January 16, 2020