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Diagnostic trouble code · GMC

U3000 on GMC vehicles

U3000 is named on 20 GMC model years (2021–2026): 146 manufacturer filings and 3 owner reports in NHTSA’s files, across Yukon, Sierra, Hummer EV, Sierra 2500HD, Sierra 3500HD and 2 more.

Network 20 model years 146 manufacturer filings 3 owner reports

Which GMC model years name U3000

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2023 GMC YukonElectrical System19—
2022 GMC YukonElectrical System18—
2021 GMC YukonElectrical System151
2022 GMC SierraForward Collision Avoidance132
2024 GMC YukonForward Collision Avoidance12—
2023 GMC SierraForward Collision Avoidance10—
2024 GMC Hummer EVElectrical System9—
2024 GMC SierraElectrical System7—
2026 GMC YukonNot specified6—
2025 GMC YukonNot specified6—
2023 GMC Hummer EVForward Collision Avoidance6—
2026 GMC SierraNot specified4—
2024 GMC Sierra 2500HDNot specified4—
2024 GMC Sierra 3500HDNot specified4—
2025 GMC Sierra 2500HDNot specified3—
2025 GMC Sierra 3500HDNot specified3—
2026 GMC AcadiaNot specified2—
2026 GMC Sierra 2500HDNot specified2—
2026 GMC Sierra 3500HDNot specified2—
2023 GMC CanyonElectrical System1—

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 44 Electrical System 38 Forward Collision Avoidance 29 Equipment Adaptive/Mobility 8
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What GMC owners said

Source: NHTSA complaint database

Owners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.

During the XXX repair, technicians documented Diagnostic Trouble Code U3000:49 (internal malfunction in the front view camera module), opened TAC case XXX, and performed radio programming per bulletin 25-NA-318
2022 GMC Sierra Aug 25, 2026 NHTSA owner report

GMC filings that name U3000

Source: NHTSA manufacturer communications

Bulletins and campaigns GMC filed with NHTSA whose summary names U3000. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What U3000 means

Source: SAE J2012 / OBD-II

U3000 is a manufacturer-specific code: the second character is a 3, 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. The record above is what GMC 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 U3000 a known problem on GMC vehicles?

It is a documented one: NHTSA's files hold 146 manufacturer filings and 3 owner reports naming U3000 on 20 GMC model years (2021–2026). 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 GMC models does U3000 appear on most?

2023 Yukon (19 documents), 2022 Yukon (18 documents), 2021 Yukon (16 documents).

Does U3000 on a GMC 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.