Engine Wire Harness Chafing / IPC Gauges Sweep / IPC Warning Message / SES/Check Engine/MIL / No Start / No Crank / Runs Rough / Stalls / Reduced Engine Power / Various DTCs – 2019-2021 Cadillac Chevrolet GMC

2020 Chevrolet Silverado 1500

NHTSA ID Number: 10224856 Manufacturer Communication Number: 21-NA-149 Summary This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.   Condition 1 This Condition pertains to vehicles equipped with engine 2.7L, L3B only. Some customers may comment on any of the following concerns: – SES MIL – No Start – No …

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LIN Bus Diagnostic Information – 2014-2023 Buick Cadillac Chevrolet GMC

Chevrolet Buick GMC Cadillac

NHTSA ID Number: 10224304 Manufacturer Communication Number: PIT5698C Summary This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.   Condition As more smart motors, switches, and sensors are being used there are more Local Interconnect Network (LIN) buses on vehicles. Because of this, some questions …

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Active Shutters Inoperative, Malfunction Indicator Lamp (MIL) Illuminated – 2016-2017 Buick Chevrolet

2017 Chevrolet Malibu

NHTSA ID Number: 10158780 Manufacturer Communication Number: 16NA051 Summary This technical bulletin provides a procedure for connector kit and ambient air temperature sensor harness replacement due to active shutters being inoperative.   7 Affected Products Vehicles MAKE MODEL YEAR BUICK LACROSSE 2017-2019 CHEVROLET MALIBU 2016-2019   Parts Description Part Number Qty CONNECTOR KIT, WRG HARN 13504371 [easyazon_cta …

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Adaptive Forward Lighting Service Message Displayed on DIC, DTC B257C or B257D Set – 2014 Buick LaCrosse

2014 Buick LaCrosse

NHTSA ID Number: 10137876 Manufacturer Communication Number: PI1205 Summary This preliminary bulletin provides a procedure to reprogram the headlamp control module to correct the customers concern of the adaptive forward lighting message on and DTC set.   1 Affected Product Vehicle MAKE MODEL YEAR BUICK LACROSSE 2014     SEOCONTENT-START Bulletin No.: PI1205 Date: Mar-2014 Subject: Adaptive …

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Various HVAC Issues – 2015 Cadillac Chevrolet GMC

2015 Chevrolet Corvette

NHTSA ID Number: 10119054 Manufacturer Communication Number: PIT5383C   Summary This Preliminary Information communication provides information to the technician about vehicles with various Heater-Vent-Air Conditioning blower mode or temperature issues. Technician will need to reprogram the Heater-Vent-Air Conditioning control module using Tis2Web and Service Programming System.     14 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCORE …

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