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Diagnostic trouble code · Chevrolet

P2459 on Chevrolet vehicles

P2459 is named on 11 Chevrolet model years (2018–2025): 42 manufacturer filings and 0 owner reports in NHTSA’s files, across Silverado 2500HD, Silverado 3500HD, Suburban, Silverado, Tahoe.

Powertrain 11 model years 42 manufacturer filings

Which Chevrolet model years name P2459

Source: NHTSA manufacturer communications and complaints

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Engine 20 Electrical System 9 Fuel/Propulsion System 4 Power Train 4
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Chevrolet filings that name P2459

Source: NHTSA manufacturer communications

Bulletins and campaigns Chevrolet filed with NHTSA whose summary names P2459. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What P2459 means

Source: SAE J2012 / OBD-II

P2459 sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.

A stored code names the test that failed, never the part that caused it. The record above is what Chevrolet and its owners have filed about it; the code’s page across every make has the whole file.

From here

Common questions

Source: NHTSA files and the OBD-II standard

Is P2459 a known problem on Chevrolet vehicles?

It is a documented one: NHTSA's files hold 42 manufacturer filings and 0 owner reports naming P2459 on 11 Chevrolet model years (2018–2025). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.

Which Chevrolet models does P2459 appear on most?

2024 Silverado 2500HD (7 documents), 2024 Silverado 3500HD (7 documents), 2020 Silverado 2500HD (5 documents).

Does P2459 on a Chevrolet mean it is recalled?

No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.