2016

Changing to Camper Outside Rearview Mirrors – 2014-2019 Chevrolet Silverado & GMC Sierra

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2019 GMC Sierra 2500

NHTSA ID Number: 10161970 Manufacturer Communication Number: PI1255G   Summary This preliminary informational bulletin contains recommendations of what needs to be done to swap/install camper outside rearview mirrors on a vehicle not originally equipped with them.     Condition/Concern Request to have camper style mirrors installed on their vehicle. The new electrical architecture for the Silverado and … Read more

Terminal Test Probe Information/Repair – 2005-2021 GM Passenger Cars & Trucks

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2017 Buick Regal

NHTSA ID Number: 10184131 Manufacturer Communication Number: PIT5074N   Summary This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in … Read more

Installation Of An Aftermarket Trailer Brake Controller In Lieu Of Factory Trailer Brake Controller – 2014-2018 Cadillac Chevrolet & GMC

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2018 Chevrolet Silverado

NHTSA ID Number: 10154301 Manufacturer Communication Number: PIT5282E   Summary This Preliminary Information communication provides information to the technician that a customer may request the factory Integrated Trailer Brake Control be bypassed and their aftermarket trailer brake controller be installed instead. Technician will need to gain access to the body harness.  Install trailer brake controller harness General … Read more

Information on Vibration Analysis and Diagnostic – 2014-2019 Chevrolet Silverado & GMC Sierra

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2018 Chevrolet Silverado

NHTSA ID Number: 10154650 Manufacturer Communication Number: PI1354I   Summary This preliminary bulletin provides additional guidance for diagnosing vibrations or disturbances that may occur in either the seat or steering wheel on full size pickups at speeds of 56-72 km/h (35-45 mph) or 96-120 km/h (60-70 mph), vibrations caused by wheel and tire, axle components and/or propeller shafts and how to … Read more

Cooling System Contaminated With Engine Oil – 2010-2021 Buick Cadillac Chevrolet GMC

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2020 Buick Enclave

NHTSA ID Number: 10198879 Manufacturer Communication Number: 21NA108   Summary This service bulletin provides diagnostic information for the technician regarding a customer concern of engine overheating, cooling system contaminated with engine oil.     Condition Engine is overheating. One or more of the following conditions: Oil in the coolant overflow reservoir Coolant discharging from the coolant reservoir … Read more