Savana

Higher Than Expected Oil Consumption at 8600 GVW and Above – 2000-2022 Chevrolet GMC HUMMER

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2019 Chevrolet Silverado

NHTSA ID Number: 10219277 Manufacturer Communication Number: 03-06-01-023F Summary This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.   Information on Engine Oil Consumption Guidelines All engines require oil to lubricate and protect the load bearing and internal moving parts from wear including cylinder walls, pistons and piston rings. … Read more

Information on Diesel Exhaust Fluid (DEF) – 2011-2021 Chevrolet & GMC

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2018 Chevrolet Silverado

NHTSA ID Number: 10183127 Manufacturer Communication Number: 16NA244   Summary This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.   SEOCONTENT-START Service Bulletin Bulletin No.: 16-NA-244 Date: November, 2020 INFORMATION Subject: Information on Diesel Exhaust Fluid (DEF) Brand: Model: Model Year: VIN: Engine: Transmission: from to from to … Read more

Filling the Cooling System, Diagnosing and Replacing Leaking Cylinder Head Gaskets on a 6.6 Duramax Diesel – 2011-2016 Chevrolet & GMC

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2016 Chevrolet Silverado 3500

NHTSA ID Number: 10088863 Manufacturer Communication Number: 16-NA-204   Summary THIS INFORMATIONAL BULLETIN IS A SUPPLEMENT TO THE DURAMAX DIESEL COOLANT SYSTEM FILL AND HEAD GASKET REPLACEMENT PROCEDURE FOUND IN THE SERVICE INFORMATION.   42 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2011-2016 CHEVROLET SILVERADO 2500 2011-2016 CHEVROLET SILVERADO 3500 2011-2016 GMC SIERRA 1500 2011-2016 … Read more

Product Emission Recall 17337 Diesel Particulate Matter Sensor Diagnostic Fault – 2016-2018 Chevrolet & GMC

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2018 Chevrolet Silverado

NHTSA ID Number: 10137159 Manufacturer Communication Number: 17337 02   Summary 17337 02 Phase 3 – Product Emission. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles, equipped with a diesel engine. The engine control module in these vehicles may not properly diagnose a fault in the exhaust particulate matter sensor. Additionally, a … Read more

Information on Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle – 2015-2020 Cadillac Chevrolet GMC

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2017 Cadillac ATS

NHTSA ID Number: 10168176 Manufacturer Communication Number: 16NA361 Summary This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed.   100 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ATS 2016-2019 CADILLAC CT4 2020 CADILLAC CT6 2016-2020 CADILLAC CTS 2016-2019 … Read more