HomeP0446 · Code meaning and manufacturer information
Powertrain

P0446

Code meaning and manufacturer information

P0446

What does this code mean?

The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.

A code identifies a detected condition, not a part that must automatically be replaced.

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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer communications

4

Original wording in English

17NA383

BUICK, CHEVROLET

Reported code forms P0446

This technical bulletin provides a procedure to replace the evap canister for vehicles with the condition of Malfunction Indicator Lamp (MIL) Illuminated with DTC P0446 or P0455 Set due to spiders laying a nest within…

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PIC6250B

BUICK, CHEVROLET

Reported code forms P0446

This Preliminary Information communication provides information to the technician about vehicles that have a check engine light. Technician will find Diagnostic Trouble Code P0446. Technician will need to replace the…

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PIC6250A

BUICK, CHEVROLET

Reported code forms P0446

This Preliminary Information communication provides information to the technician about vehicles that have a check engine light. Technician will find Diagnostic Trouble Code P0446. Technician will need to replace the…

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PIC6250

BUICK, CHEVROLET

Reported code forms P0446

This Preliminary Information communication provides information to the technician about vehicles that have a check engine light. Technician will find Diagnostic Trouble Code P0446. Technician will need to replace the…

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Check vehicle applicability

1

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
BuickENCORE2015

Before replacing a part

Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.

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Can I keep driving?

A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.