Monthly Archives: January 2015

Break-In Oil Change for Corvette Included in Chevrolet Complete Care Program

Fig 1   A new mileage interval has been established for the first engine oil change on 2014-2015 Corvette Stingray models with the Z51 Performance Package and Z06 models. These vehicles are equipped with an engine featuring a dry sump … Continue reading

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Quick Reference Guide for GDS2 Diagnostics

A single-page, quick reference guide has been released to help technicians quickly determine when to use the Tech2 diagnostic scan tool (for older GM vehicles) and when to use the Global Diagnostic System 2 (GDS2) — the latest PC-based diagnostic … Continue reading

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Cover Windshield during Front Fender Removal

When removing, replacing or adjusting a front fender on a 2015 Colorado or Canyon, a protective covering should be placed over the windshield at the top rear bolt (Fig. 4) to prevent windshield breakage. The cover will protect the windshield … Continue reading

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Transport Recommendations for ATS, CTS

Underbody components on 2013-2015 ATS and 2014-2015 CTS models may be damaged if the vehicle is not secured properly during recovery and transport.   When recovering or transporting an ATS or CTS, do not hook, pull or secure the vehicle … Continue reading

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Radio Antenna Amplifier in Vehicle Bag

On some 2015 Impalas, a radio antenna amplifier may be found in the vehicle bag, located in the trunk, during the Pre-Delivery Inspection (PDI).   The Radio Antenna Module was correctly installed. No repairs are needed. The radio antenna amplifier … Continue reading

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Brake Pad Wear Sensor Harness

A Change Brake Pads message may be displayed on the Driver Information Center (DIC) of some 2014-2015 Camaro Z/28 and 2015 Corvette Stingray Z06 models. There will not be any DTCs set.   These models feature front and rear disc … Continue reading

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Transfer Case Selector Switch

A Service 4WD message may be displayed in the instrument panel cluster on some 2015 Colorado and Canyon models equipped with 4-wheel-drive (RPO NQ6, NQ7). DTCs B2725 (Transfer Case Range Selection Switch Circuit) or B0770 (AWD Indicator Circuit) may be … Continue reading

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Full-Size Truck and SUV Ambient Temperature Display Information

How the ambient temperature reading is sent to the radio display varies on 2015 Escalade models, Tahoe, Silverado, Suburban, Sierra, and Yukon models; and 2014 Silverado 1500 and Sierra 1500, depending on the model and radio option.   The following … Continue reading

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Service Information Links Added for Quick Access to Maintenance Items and Maintenance Replacement Parts

Convenient links to maintenance items and maintenance replacement parts have been added to the Service Information for the 2012-2016 model years. These links put common maintenance resources all in one easy-to-find location.   TIP: The Maintenance Items chart and Maintenance … Continue reading

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Transmission Technical Guide PDFs Now Available

The GM Service Information recently added Transmission Technical Guides for many transmissions. The guides are available on the Service Information home page in a printer-friendly PDF format.   From the Service Information home page, select the link for Unit Repair, … Continue reading

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Download PDI Forms from the Service Information

Pre-Delivery Inspection (PDI) forms can now be downloaded from the Service Information.   To access the PDI forms: 1. Select a late model from the drop down menu or enter the full VIN and select “Next.” 2. PDI forms are … Continue reading

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Unable To Learn Tire Pressure Monitor after Tire Service

After performing a tire service (rotation) on some 2007-2012 Malibu, 2007-2010 G6 and 2008-2009 AURA models, the vehicle may go into tire pressure indicator sensor learn mode but not respond to a sensor or sensors that have been activated with the … Continue reading

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Engine Tick Sound Heard Inside Cab

An engine or High Pressure Fuel Pump tick sound may be heard inside the cab of some 2015-2016 Colorado and Canyon models equipped with the 2.5L 4-cylinder engine, 2.8L diesel engine, or 3.6L V6 engine (RPO LCV, LWN, LFX). Comparisons with other … Continue reading

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Inoperative Heated Seats

The driver and front passenger heated seats (RPO KA1) may be inoperative on some 2010-2013 Lacrosse; 2010-2015 Camaro, Equinox, Terrain; 2011-2015 Regal, Cruze, Volt; 2012-2015 Verano, Sonic; and 2013-2015 Malibu models. DTC U0209 (Lost Communication with Front Seat Heating Control … Continue reading

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Radio Backlighting Stays On

On some 2014 Silverado 1500 and Sierra 1500 and 2015 Silverado and Sierra models equipped with transfer case RPO NQF or NQH, the radio backlighting may stay on after the ignition has been turned off and the key has been … Continue reading

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Grease on the Torque Converter Housing

On some 2015 Colorado and Canyon models equipped with an automatic transmission (RPO MYB), what appears to be an oil drip may be found on the inspection plug (Fig. 14) on the bottom of the torque converter housing or the … Continue reading

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Service Know-How

10215.01D – Emerging Issues January 8, 2014   To view Emerging Issues seminars: • Log in to www.centerlearning.com –   Select Resources > Service Know-How/TECHAssist > Emerging Issues > Searchable Streaming Video; or –   Select Catalog to search for the course … Continue reading

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Service Technical College – New Training Courses

Following are the latest service technical courses available to technicians through the GM Service Technical College.   For more information about available service training courses, log in to the GM Center of Learning at www.centerlearning.com and click the Catalog link. … Continue reading

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Bulletin Review – December 2014

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