2018

Information on Engine Oil Consumption Guidelines – GM Passenger Cars & Gasoline-Powered Light Duty Trucks

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General Motors

NHTSA ID Number: 10222734 Manufacturer Communication Number: 01-06-01-011M Summary This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.   All engines require oil to lubricate and protect the load bearing and internal moving parts from wear including cylinder walls, pistons and piston rings. When a piston moves down its cylinder, a … Read more

Click or Tick Noise Heard Inside Cab With Engine Running – 2015-2019 Chevrolet Colorado & GMC Canyon

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2019 Chevrolet Colorado

NHTSA ID Number: 10161030 Manufacturer Communication Number: PIT5363E   Summary This Preliminary Information communication provides information to the technician about vehicles that may have a click or tick noise heard inside cab with engine running. Technician may find the engine or High Pressure Fuel Pump tick noise that is very loud in the cab of the truck. Comparison with … Read more

Rough Idle In Drive – 2014-2019 Cadillac Chevrolet GMC

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2016 Chevrolet Silverado

NHTSA ID Number: 10187375 Manufacturer Communication Number: 17NA166   Summary This technical bulletin provides a procedure to measure vibration and install engine mounts to correct a Rough Idle in Drive concern.     Condition Rough idle and/or vibration at idle in Drive. This condition may be most noticeable following extended driving, after hard acceleration, while idling at … Read more

Guidelines When Changing Tire And Wheel Size – 2003-2020 General Motors Light Duty Trucks / Utilities / Vans

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2020 Chevrolet Suburban

NHTSA ID Number: 10184105 Manufacturer Communication Number: PIT3271K   Summary This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use … Read more

Information on Summer Tire Performance and Tire Cold Weather Cracking – Buick Cadillac Chevrolet

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2017 Chevrolet Corvette

NHTSA ID Number: 10183781 Manufacturer Communication Number: 130310001G   Summary This service bulletin provides information on tire cold weather cracking and the proper techniques on taking care of the tires and proper use.     Cold Weather Operation These vehicles are all equipped with 3 season performance tires commonly referred to as “Summer Tires.” The rubber used … Read more