Archive for September, 2019

Installing Techline Connect

Installing Techline Connect

Techline Connect — GM’s latest tool that brings together diagnostic information and vehicle data in one easy-to-use application — is currently being rolled out by state to GM dealerships (U.S.). […]

September 30, 2019
Water Intrusion in Active Grille Air Shutter Connectors

Water Intrusion in Active Grille Air Shutter Connectors

Some 2018-2019 Enclave and Traverse models may have DTC U1345 (Engine Control Module LIN Bus 1) set along with an illuminated Check Engine lamp. If these conditions are found, there […]

September 30, 2019
Upper B-Pillar Rattle Sound

Upper B-Pillar Rattle Sound

A slight rattle sound may be heard near the B-pillar on the driver’s or passenger’s side of some 2019-2020 XT4 models. The sound may be due to a design variance […]

September 30, 2019
Incorrect Infotainment Screen Pop-up Messages

Incorrect Infotainment Screen Pop-up Messages

A “Climate Off” pop-up message may display on the infotainment screen even though the HVAC system is fully functional on some 2019 CT6, XT4, Blazer, Camaro, Colorado, Equinox, Malibu, Silverado […]

September 30, 2019
Engine Harness Contact with Underhood Components

Engine Harness Contact with Underhood Components

There may be several engine performance conditions on some 2019 Silverado 1500 and Sierra 1500 models equipped with the 2.7L 4-cylinder engine (RPO L3B), including no start, no crank, engine […]

September 30, 2019
Exhaust Leak Conditions

Exhaust Leak Conditions

Several exhaust leak conditions, including a rattle or exhaust noise, or catalytic converter failure on Bank 1 may occur on some 2018-2019 Enclave and Traverse models equipped with the 3.6L […]

September 30, 2019
Fuel Injector Driver DTCs Diagnostic Tip

Fuel Injector Driver DTCs Diagnostic Tip

If fuel injector driver DTCs are found on some 2019 Silverado 4500 MD, 5500 MD, 6500 MD models equipped with the 6.6L Duramax diesel engine (RPO L5D), it may be […]

September 30, 2019
Low Oil Pressure Condition on 2.0L and 2.5L 4-Cylinder Engines

Low Oil Pressure Condition on 2.0L and 2.5L 4-Cylinder Engines

Some 2013-2019 ATS, Impala, Malibu; 2014-2019 Regal, CTS; 2015-2019 Envision, LaCrosse, Colorado, Acadia, Canyon; 2016-2019 CT6, Camaro; 2017-2019 Traverse, Terrain; 2019 Blazer and Equinox models equipped with the 2.0L 4-cylinder […]

September 30, 2019
New Duramax Diesel 3.0L 6-Cylinder Engine Powers Up Silverado 1500, Sierra 1500

New Duramax Diesel 3.0L 6-Cylinder Engine Powers Up Silverado 1500, Sierra 1500

The all-new Duramax® Diesel 3.0L inline 6-cylinder turbocharged engine (RPO LM2) delivers plenty of power — producing 282 horsepower and 450 lb.-ft. of torque — along with impressive fuel economy […]

September 13, 2019
Diesel Exhaust Brake Operation

Diesel Exhaust Brake Operation

The diesel exhaust brake available on 2020 Silverado and Sierra light-duty and HD models equipped with the 3.0L Duramax diesel engine (RPO LM2) or 6.6L Duramax diesel engine (RPO L5P) […]

September 13, 2019
2020 Camaro Model Updates

2020 Camaro Model Updates

A new LT1 V8 performance model (RPO 1LZ) leads the changes for the 2020 Camaro lineup along with a new available 10-speed automatic transmission on V6 models. Here’s a look […]

September 13, 2019
Possible Engine Oil Contamination Conditions

Possible Engine Oil Contamination Conditions

Some 2019 Enclave and Traverse models may have an illuminated Check Engine MIL along with an engine ticking noise, coolant loss or very dark colored oil in 3.6L V6 engines […]

September 13, 2019
Low Oil Pressure Conditions

Low Oil Pressure Conditions

There may be no or low oil pressure along with DTC P06DD (Engine Oil Pressure Control Solenoid Valve Performance) set on some 2014-2019 Silverado LD, Sierra LD; 2015-2019 Escalade, Tahoe, […]

September 13, 2019
Multiple DIC Messages and Loss of Low Speed LAN Communication

Multiple DIC Messages and Loss of Low Speed LAN Communication

Some 2016-2019 Volt models may experience a no start condition, multiple Driver Information Center (DIC) messages, and/or a loss of low speed Local Area Network (LAN) communication. If any of […]

September 13, 2019
Auxiliary Transmission Fluid Pump Performance

Auxiliary Transmission Fluid Pump Performance

Some 2019 Malibu models equipped with the VT40 CVT automatic transmission (RPO MRG) may have an illuminated Check Engine lamp and the Automatic Engine Stop/Start system is not working. DTC […]

September 13, 2019