Monthly Archives: May 2016

New 2016 Envision Hits the Compact Mark

The new 2016 Envision (Fig. 1) is Buick’s latest world-class luxury crossover vehicle. It was designed, engineered and tested in the United States, targeting the compact crossover market between the best-selling Encore and larger Enclave.   Fig. 1   The … Continue reading

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USB Flash Drive Size and other Service Programming Tips

For any service procedures that require USB and SPS programming, there are several critical steps that should be followed in order to ensure successful programming. Always refer to the appropriate Service Information for the vehicle being repaired to review the … Continue reading

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Corvette Ground Effects Shipped Separately

The process of delivering the ground effects and other loose-shipped parts for 2016-2017 Corvette models (Fig. 8) to dealerships has changed.   Fig. 8   Due to the size of the ground effects — such as the front fascia splitter, … Continue reading

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Accelerator Pedal Detent

The accelerator pedal on the 2016 Malibu and 2017 LaCrosse and XT5, equipped with the 8-speed AF50 transmission (RPO MRC), features a detent approximately 3/4 of the way through pedal travel. As the accelerator pedal is applied, the built-in detent … Continue reading

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V8 Engine Surge Sensation during Highway Driving

A surge or misfire sensation during steady-state highway driving may be felt on some 2014-2016 Corvette and 2016 Camaro and CTS-V models (Fig. 11) equipped with the 6.2L V8 engine (RPOs LT1, LT4) and the 8-speed automatic transmission (RPO MU5). … Continue reading

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Seatback Recliner Handle Now Available

New parts are now available for a broken front seatback recliner handle on 2015-2016 Colorado and Canyon models. The newly designed part applies to models built from start of production until April 18, 2016.   When removing the broken handle, … Continue reading

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Service Know-How

10216.06V – Emerging Issues June 9, 2016   A review of the latest service topics from Brand Quality and Engineering, including a look at the all-new 2017 Acadia and 2016 Silverado and Sierra 2500 and 3500 trucks with Digital Steering … Continue reading

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All-New 2017 Cadillac XT5 Luxury Crossover

The 2017 Cadillac XT5 is an all-new midsize 5-passenger luxury crossover (Fig. 1) replacing the SRX model. It uses a unique chassis and structure that is 278 lbs. (126 kg) lighter than its predecessor, but with a two-inch (5 cm) … Continue reading

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New 3.6L V6 Engine with Auto Stop/Start Technology

The new 3.6L V6 engine (RPO LGX) — standard on the 2017 XT5 — ushers in new benchmarks for efficiency, refinement and durability. (Fig. 6) Fig 6 The engine’s clean-sheet redesign represents the fourth generation of GM’s acclaimed DOHC V6 … Continue reading

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Digital Angle Gauge Required for Corvette Rear Wheel Alignment

As part of a rear wheel alignment on the 2014-2016 Corvette for track events and competitive driving, the rear wheel caster must be set. To measure rear wheel caster, a digital angle gauge and an adapter, which attaches the gauge … Continue reading

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Corvette Competitive Driving Wheel Alignment Tips

Some 2014-2016 Corvette owners may want the vehicle’s wheel alignment set-up for track events and competitive driving. (Fig. 11) The vehicle must be returned back to the original specifications after the driving events. Changing the alignment for driving events is … Continue reading

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TAC Builds on Customer Satisfaction Improvements

Customer service is at the forefront of the goals at the U.S. GM Technical Assistance Center (TAC). Every TAC consultant strives to provide top quality service each time a technician calls for diagnostic help with a vehicle.   These efforts are … Continue reading

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Blu-ray Discs Not Playing

Certain Universal Studios Blu-ray discs released after October 2015 may not start playing when the Play icon is pressed on some 2013-2016 SRX, XTS; and 2014-2016 Escalade, LaCrosse, Silverado, Tahoe, and Yukon models equipped with the Rear Seat Entertainment system … Continue reading

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Transmission Electrical or Communication DTCs

Some 2005-2010 Cobalt, 2005-2011 HHR, and 2005-2006 Pursuit models may have transmission-related electrical or communication DTCs that may be intermittent and difficult to duplicate.   Check the transmission wiring harness located beneath the engine cover. It may have a bare … Continue reading

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Charge Air Cooler Coupler O-ring Seal

Reduced engine power may be noticed on some 2013-2016 Regal, ATS, Malibu; 2014-2016 CTS; and 2016 CT6 models equipped with the 2.0L engine (RPO LTG). DTCs P015B (HO2S Delayed Response Lean to Rich Bank 1 Sensor 1) and/or P1101 (Intake Air Flow … Continue reading

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Service Know-How

10216.05D – Emerging Issues May 12, 2016   A review of the latest service topics from Brand Quality and Engineering, including a look at the convertible top operation of the 2016 Camaro and Cascada.   FIG. 16   To view … Continue reading

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