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Diagnostic trouble code · Chevrolet

B0126 on Chevrolet vehicles

B0126 is named on 8 Chevrolet model years (2024–2025): 31 manufacturer filings and 0 owner reports in NHTSA’s files, across Equinox, Silverado, Traverse, Suburban, Tahoe and 1 more.

Body 8 model years 31 manufacturer filings

Which Chevrolet model years name B0126

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2024 Chevrolet EquinoxNot specified7—
2024 Chevrolet SilveradoNot specified7—
2024 Chevrolet TraverseNot specified7—
2025 Chevrolet SuburbanNot specified3—
2025 Chevrolet TahoeNot specified3—
2025 Chevrolet TraverseForward Collision Avoidance2—
2025 Chevrolet BlazerNot specified1—
2025 Chevrolet EquinoxNot specified1—

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.

Not specified 28 Forward Collision Avoidance 3
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Chevrolet filings that name B0126

Source: NHTSA manufacturer communications

Bulletins and campaigns Chevrolet filed with NHTSA whose summary names B0126. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What B0126 means

Source: SAE J2012 / OBD-II

B0126 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 B0126 a known problem on Chevrolet vehicles?

It is a documented one: NHTSA's files hold 31 manufacturer filings and 0 owner reports naming B0126 on 8 Chevrolet model years (2024–2025). 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 B0126 appear on most?

2024 Equinox (7 documents), 2024 Silverado (7 documents), 2024 Traverse (7 documents).

Does B0126 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.