HomeP026A · Code meaning and manufacturer information
Powertrain

P026A

Code meaning and manufacturer information

P026A

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

18

Original wording in English

21-NA-271

CADILLAC, CHEVROLET, GMC

Reported code forms P026A

This bulletin advises the technician of a possible kinked coolant hose that might be causing the customers concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P026A Set.

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N212351211

CHEVROLET, GMC

Reported code forms P026A

General Motors has decided to conduct a voluntary emissions recall involving certain vehicles, equipped with a diesel engine. The Engine Control Module (ECM) may not properly detect faults, set DTCs or illuminate the…

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PIP5481B

CHEVROLET, GMC

Reported code forms P026A

This Preliminary Information communication provides information to the technician about vehicles that have a check engine light on. Technician may find Diagnostic Trouble Code P026A. The owner's manual advises not to…

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PIP5481A

CHEVROLET, GMC

Reported code forms P026A

This Preliminary Information communication provides information to the technician about vehicles that have a check engine light on. Technician may find Diagnostic Trouble Code P026A. The owner's manual advises not to…

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1800116REVC

RAM

Reported code forms P026A-00

Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience bucking under hard…

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RAM

Reported code forms P026A-00

Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience bucking under hard…

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Check vehicle applicability

95

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

MakeModelModel year
CadillacESCALADE2024
CadillacESCALADE2023
CadillacESCALADE2022
CadillacESCALADE2021
CadillacESCALADE ESV2023
CadillacESCALADE ESV2022
CadillacESCALADE ESV2021
ChevroletSILVERADO2017
ChevroletSILVERADO 15002024
ChevroletSILVERADO 15002023
ChevroletSILVERADO 15002022
ChevroletSILVERADO 15002021
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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.