P0420

Malfunction Indicator Lamp (MIL) Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set – 2000-2022 GM Passenger Cars and Trucks

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Chevrolet Buick GMC Cadillac

NHTSA ID Number: 10219266 Manufacturer Communication Number: 20-NA-065 Summary This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.   Condition Some customers may comment that the MIL is illuminated. Technicians may find one or … Read more

GE-52250 Power Smoke Diagnostic Leak Detector Turbocharger Charge Air And Induction System Tester MIL Reduced Engine Power

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2020 Buick Regal

NHTSA ID Number: 10178370 Manufacturer Communication Number: PIP5684B   Summary This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual.   455 Affected Products Vehicles MAKE MODEL YEAR BUICK CASCADA 2016-2018 BUICK ENCLAVE 2010-2018 BUICK ENCORE 2013-2018 BUICK ENVISION 2016-2018 BUICK LACROSSE 2010-2018 BUICK … Read more

Instrument Panel Cluster (IPC) Warning Lamps And / Or MIL Are Illuminated Diesel Exhaust Fluid (DEF) Message Displayed Various DTCs Set (Inspect Wiring Harnesses for Chafing) – 2016-2021 Chevrolet Colorado & GMC Canyon

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2018 Chevrolet Colorado

NHTSA ID Number: 10184101 Manufacturer Communication Number: PIP5416D   Summary This Preliminary Information communicates to the technician the potential areas of concern in which the engine wiring harness may chafe. It describes in detail what to look for. If you encounter any of these specific described chafes, inspect, repair (as necessary) and route the wiring harness away from … Read more

Product Emission Recall – Catalytic Converter Internal Damage – 2013-2014 Chevrolet Cruze & Chevrolet Sonic

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2014 Chevrolet Cruze

NHTSA ID Number: 10143749 Manufacturer Communication Number: 16186 01   Summary 16186-01 – Emission Recall. On certain vehicles equipped with a 1.8L engine (RPO LWE), cracking of ceramic components internal to the catalytic converter may occur as a result of higher than anticipated exhaust temperatures. If this occurs, the catalytic converter low efficiency diagnostic will set and … Read more

DTC P0420: Catalyst System Low Efficiency – 2013 Chevrolet Cruze

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2013 Chevrolet Cruze

NHTSA ID Number: 10138111 Manufacturer Communication Number: PI1505 Summary This preliminary informational bulletin provides diagnostic and repair information to correct a customer concern that the Malfunction Indicator Lamp (MIL) is illuminated and technician finding DTC P0420: Catalyst System Low Efficiency.   1 Affected Product Vehicle MAKE MODEL YEAR CHEVROLET CRUZE 2013     SEOCONTENT-START Bulletin No.: PI1505 … Read more