Monthly Archives: August 2017

All-New 2018 GMC Terrain Arrives in Style

The all-new 2018 GMC Terrain is sized and designed to meet the needs of the compact SUV customer. It is a five-passenger, four-door, front-wheel-drive (FWD) vehicle, with available all-wheel-drive (AWD).   The new Terrain’s bold exterior highlights GMC’s evolving design. … Continue reading

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Questions to Ask for Bluetooth Concerns

What’s one of the first things drivers do after entering their vehicle? If you said use their mobile phone, you’re correct. A recent study shows that the average driver spends 3.5 minutes on the phone per one hour trip. This … Continue reading

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Repeat DTCs P2096 and P2098

Some 2014-2017 Corvette models equipped with the 6.2L V8 engine (RPO LT1) and 8L90 automatic transmission (RPO M5U) (Fig. 9) may have an illuminated Check Engine MIL and repeat DTCs P2096 (Post Catalyst Fuel Trim System Low Limit Bank 1) … Continue reading

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Engine Noise or Engine Misfire Condition

Some 2017-2018 Silverado HD, Sierra HD, Express, Savana and Low Cab Forward models equipped with a 6.0L V8 engine (RPOs L96, LC8) (Fig. 10) may have an engine noise or misfire condition caused by a broken rocker arm.   Fig … Continue reading

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Glow Plug Control Module Software Update

A Glow Plug Control Module (GPCM) DTC or individual glow plug DTCs may be set, along with an illuminated Check Engine MIL, on some 2017 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPO L5P). (Fig. 12) … Continue reading

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Service Know-How

10217.10V – Emerging Issues October 12, 2017   The latest service topics from Brand Quality and Engineering are reviewed, including a demonstration of the updated 2018MY 8-speed transmission clutch learn procedure (Fig. 13) and a look at Super Cruise operation … Continue reading

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Super Cruise Brings Hands-Free Driving to 2018 CT6

Super Cruise™, the automotive industry’s first true hands-free driving technology for the freeway, is now available on the 2018 Cadillac CT6. (Fig. 1)   Fig. 1   By automatically steering the vehicle to maintain lane position (Fig. 2), it offers … Continue reading

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Questions and Answers on Super Cruise

The Super Cruise™ system available on the 2018 Cadillac CT6 automatically steers the vehicle when driving on a limited-access freeway, allowing drivers the convenience of hands-free driving. The system uses a variety of advanced technology so customers may have a … Continue reading

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Keyless Entry Keypad Accessory Installation

The new GM Accessories Keyless Entry Keypad, available for several 2018 GM models, provides the convenience of vehicle entry using a keypad mounted on the driver’s door.   The accessory kit includes the keyless entry keypad (Fig. 8), an alcohol … Continue reading

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Answers to Your GM Accessory Installation Questions

Several sources of information are available to technicians for help with installation or parts concerns when installing GM Accessories, whether it’s regarding kit part numbers, usage, programming, diagnosis of a particular system, or other issues.   TIP: Installation sheets for … Continue reading

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Water Intrusion into the Air Filter Assembly

If water or snow gets into the air filter assembly on some 2017-2018 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPO L5P), it may saturate the air filter and reduce flow to the point that the … Continue reading

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