2018

Diagnostic Tip – Diesel Exhaust Fluid System Contamination – 2010-2023 Chevrolet & GMC

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Chevrolet GMC Cadillac

NHTSA ID Number: 10222781 Manufacturer Communication Number: 19-NA-237 Summary This informational bulletin explains how to identify possible DEF contamination.   Condition Some customers may comment on one or more of the following conditions: Exhaust fluid quality poor message on the Driver Information Center (DIC). Diesel exhaust fluid warning lamp on. Other exhaust fluid quality related concerns.   … Read more

EV Range Driving Tips – 2017-2018 Cadillac CT6 & 2017-2019 Chevrolet Volt

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2019 Chevrolet Volt

NHTSA ID Number: 10161002 Manufacturer Communication Number: PIC6231D Summary This Preliminary Information communication provides information to the technician about vehicles EV range is less than expected, or the estimated EV range on the display is greater than the actual range achieved. Dealer should walk the customer though using the energy screen. The energy screen will help the … Read more

Upfitter Configurable Auxiliary Circuits (Police And Special Service Vehicles) – 2015-2020 Chevrolet Tahoe

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2019 Chevrolet Tahoe

NHTSA ID Number: 10168963 Manufacturer Communication Number: PIT5325C Summary This Preliminary Information communication provides information to the technician about the new 2015 – 2017 Tahoe Police Package Vehicle and Special Service Vehicle have four relay controlled circuits which can be utilized when installing special first responder equipment. Please reference the latest version of General Motors Upfitter Integration … Read more

Mil On With DTC P0171 And / Or P1101 – 2013-2019 Buick & Chevrolet

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2019 Buick Encore

NHTSA ID Number: 10163679 Manufacturer Communication Number: PIP5240F Summary This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0171 and or P1101 set. Technician will need to inspect the Air Cleaner Housing. If the air cleaner housing does not have the … Read more

Installation Of Electrical Aftermarket Accessories (Battery Ignition And Ground Connections) – 2014-2019 Chevrolet Silverado & GMC Sierra

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2019 Chevrolet Silverado

NHTSA ID Number: 10154599 Manufacturer Communication Number: PIT5326C Summary This Preliminary Information communication provides information to the technician about the Upfitters questions about installing aftermarket electrical accessories. Dealer should reference the latest version of General Motors Upfitter Integration Bulletin 115 for this information. It can be found at https://www.gmupfitter.com.   30 Affected Products Vehicles MAKE MODEL YEAR … Read more