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Powertrain

P129D

Code meaning and manufacturer information

OBD-II / DTC

Reference meaning

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.

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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Manufacturer communications

2

Original wording in English

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24-NA-124 ↗

CHEVROLET, GMC

This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated, Stall, or No Start with DTC P2534, U3023, P0700, P129D, P10DB (w/ L5P Diesel), P103B, P17E0.

PIT5308D ↗

CADILLAC, CHEVROLET, GMC

This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have remote start is inoperative, power lift gate Regular Production Option Code (TB5) is inoperative with the ignition off, Crank no start, Start and Stall, and vehicles equipped with the diesel en…

Check vehicle applicability

55

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

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MakeModelModel year
CadillacESCALADE ESV ↗2019
CadillacESCALADE ESV ↗2018
CadillacESCALADE ESV ↗2017
CadillacESCALADE ESV ↗2016
CadillacESCALADE ESV ↗2015
ChevroletSILVERADO 1500 ↗2019
ChevroletSILVERADO 1500 ↗2018
ChevroletSILVERADO 1500 ↗2017

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.