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Diagnostic trouble code

P1429

0 owner reports and 147 manufacturer filings across 14 model years from Chevrolet, Volkswagen.

PowertrainManufacturer-specific147 manufacturer filings

Where P1429 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2019 Volkswagen AtlasEquipment22—
2019 Volkswagen JettaEquipment22—
2019 Volkswagen Golf / GTIEquipment21—
2019 Volkswagen TiguanEquipment20—
2019 Volkswagen BeetleEquipment12—
2018 Volkswagen AtlasEquipment11—
2018 Volkswagen PassatEquipment8—
2018 Volkswagen TiguanEquipment8—
2017 Volkswagen PassatEquipment7—
2016 Chevrolet VoltEngine6—
2016 Volkswagen Golf / GTIEquipment5—
2017 Chevrolet VoltEngine3—
2018 Volkswagen BeetleVisibility1—
2017 Volkswagen TiguanEquipment1—

A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.

What it gets filed under

Equipment 86Unknown Or Other 18Electrical System 8Visibility 8Engine 5Equipment Adaptive/Mobility 2
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Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P1429. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

What P1429 means

Source: SAE J2012 / OBD-II

P1429 is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.

A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.

Common questions about P1429

Source: NHTSA files and the OBD-II standard

Why does this page not define P1429?

Because it cannot be defined honestly. The second character of a trouble code says who owns its meaning, and a 1 or a 3 hands that to the manufacturer. Sites that print one definition for a manufacturer-specific code are showing you one automaker's meaning and hoping it is yours.

Can I keep driving with P1429 stored?

Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. The safe read of this page is the mileage and the components, not permission.

Does a code mean the car is recalled?

No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.

Why do the counts here differ from other sites?

Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.

Will clearing the code fix it?

Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.