Yearly Archives: 2015

All-New 2016 Camaro Hits the Road

The all-new sixth-generation 2016 Camaro (Fig. 1) sets new standards for levels of performance, technology and refinement in the sporty car segment. The new Camaro is available in 4 models: 1LT, 2LT, 1SS and 2SS. The SS models are equipped … Continue reading

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2016 Camaro Delivers Performance Options

The all-new 2016 Camaro (Fig. 7) is built to perform on or off the track. There are several features that allows the driver to maximize the performance of the vehicle. It’s important to understand how these features operate when diagnosing … Continue reading

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Calibration Files to be Delivered Through New Techline Data Service

As vehicle software updates through TIS2Web have become larger, a new solution is coming soon to help dealerships manage these files more efficiently. The new Techline Data Service (TDS) is an application intended to eliminate the need for each dealership … Continue reading

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Call the GM Tire Program Hotline for Winter Tire Assistance

Many GM high performance models, such as the CTS-V, ATS-V, Camaro ZL1, Corvette and Chevrolet SS, are factory equipped with summer tires (Fig. 12) that are optimized for maximum dry and wet road performance while still retaining satisfactory tread life, … Continue reading

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OEM and ACDelco Replacement Battery Specifications Chart

Correct battery cold cranking amperage (CCA) ratings and type are critical for proper test results when using the EL-50313 Midtronics GR8 Battery Charger/Tester. It may be difficult to see the battery specification label with the Original Equipment Manufacturer (OEM) part … Continue reading

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Incorrect Temperature Displays

The driver’s and passenger’s temperature settings may be displayed in Celsius or the outside ambient temperature may be missing from the radio/HVAC display on some 2010-2013 LaCrosse, 2012-2016 Verano, 2013-2015 Malibu, and 2016 Malibu Limited models. These conditions may be … Continue reading

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Easy Entry Seat Motor Noise

On some 2015-2016 ATS Coupe and 2014-2016 ELR models, increased power seat motor noise may be noticed when moving the driver’s or passenger’s seat forward or rearward using the Easy Entry power seat switch located at the top of the … Continue reading

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Compass Always Shows North

The compass on the radio display may always show North (N) regardless of vehicle direction on some 2014 Regal, LaCrosse, ATS, CTS VIN A, SRX, XTS, Corvette, Impala, Silverado 1500 and Sierra 1500 models. This condition affects the following radios: … Continue reading

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Service Workbench Maintenance Menus Now Available to Technicians Anytime

Service technicians now have the ability to view Maintenance Menus in Service Workbench (Fig. 1) for a vehicle in their service bay at any time, either through the Service Visit Summary page or other tools in Service Workbench.   Fig. … Continue reading

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Quick Learn Process for Programming Additional Keys

A new quick-learn process has been developed for programming additional keys (Fig. 5) without using the Service Programming System (SPS) for keyed vehicles in the U.S. and Canada.   Fig. 5   The Adding Keys quick-learn procedure (Service Information ID: … Continue reading

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New My Shortcuts Panel in GlobalConnect

The My Shortcuts tab at the top of the new GlobalConnect home page has been updated and moved to the top-right of the page, making it easier for users to access their frequently used apps without extra clicks. Plus, the … Continue reading

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TAC Implements New Tools for a Better Caller Experience

The goal of the GM Technical Assistance Center (TAC) is to ensure that every TAC consultant provides top quality service each time a technician calls for diagnostic help with a vehicle. With this goal in mind, TAC (in the U.S.) … Continue reading

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Dashes on Outside Air Temperature Display

The outside air temperature display (Fig. 7) on some 2013-2015 ATS, SRX, XTS and 2014-2015 CTS Sedan (VIN A) models may intermittently show dashes instead of a numeric value on the Cadillac CUE touch screen. This can occur whenever a … Continue reading

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Inoperative Radio with DTC U0186

Some 2016 Volt models equipped with the premium speaker system and amplifier (RPO UQA) may have a condition where the radio and/or audio is inoperative or intermittently inoperative. DTC U0186 (Lost Communication with Speaker Amplifier Module) may be set and … Continue reading

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Service Theft Deterrent Message

Some 2015 Colorado and Canyon models may have a Service Theft Deterrent message displayed on the Driver Information Center. DTC B2955 (Security Sensor Data Circuit) may be set.   Inspect the connections at the immobilizer control module (Fig. 10) and … Continue reading

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Chime Volume Too Loud

Owners of some 2014-2015 Silverado and Sierra models, including HD trucks without RPO AVF, equipped with the Performance Enhanced Audio Speaker System (RPO UQ3) may find the chime volume to be too loud.   The radio can be reprogrammed using … Continue reading

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Service Know-How

10215.12D – Emerging Issues December 10, 2015   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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New Bulletin Review – November 2015

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New 2.8L Duramax Diesel Available in 2016 Colorado and Canyon

The new 2.8L Duramax turbo-diesel 4-cylinder engine (RPO LWN) is the cleanest diesel truck engine ever produced by GM. The new diesel engine (Fig 1.) will be offered in 2016 Colorado and Canyon LT and Z71 Crew Cab models with … Continue reading

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6L50 Automatic Transmission Centrifugal Pendulum Vibration Absorber

The new 2.8L Duramax diesel engine (RPO LWN) is paired with the Hydra-matic 6L50 6-speed automatic transmission (RPO MYB). The transmission (Fig. 6) incorporates a torque converter, an integral fluid pump and converter housing, a single and double planetary gear … Continue reading

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6.2L Engine Supercharger Noise

The supercharger on the 6.2L engine (RPO LSA) in the 2009-2014 CTS-V and 2012-2014 Camaro (Fig. 9) may exhibit several noises coming from the bearing, which are due to contamination of the lubricating grease. If these conditions are left unaddressed, … Continue reading

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Updated Wheel Nut Torque Specifications

The wheel nuts and wheel nut torque specifications have been updated on 2016 ATS, CTS and Camaro models.   Cadillac models   The 2016 ATS-V, CTS, and CTS-V built after the following VIN breakpoints have a new wheel nut torque … Continue reading

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USB Harness Power Supply Update

Some 2015 Acadia, Enclave and Traverse models may have a front console USB port losing power with the ignition key off or the USB music playlist restarting from the beginning after cycling the ignition.   Update the power feed harness … Continue reading

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Adaptive Cruise Control Temporarily Unavailable

If an Adaptive Cruise Temporarily Unavailable message is displayed on the Driver Information Center of some 2015-2016 Escalade models equipped with the Driver Assist Package (RPO Y66), there are several items that should be considered during diagnosis, including environmental factors, … Continue reading

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