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Home›Trouble codes›P018B› GMC
Diagnostic trouble code · GMC

P018B on GMC vehicles

P018B is named on 20 GMC model years (2016–2019): 109 manufacturer filings and 1 owner report in NHTSA’s files, across Yukon, Sierra, Canyon, Sierra 2500HD, Acadia and 3 more.

Powertrain 20 model years 109 manufacturer filings 1 owner report

Which GMC model years name P018B

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2016 GMC YukonFuel/Propulsion System23—
2017 GMC SierraFuel/Propulsion System11—
2016 GMC SierraFuel/Propulsion System10—
2017 GMC CanyonFuel/Propulsion System7—
2017 GMC YukonFuel/Propulsion System61
2016 GMC CanyonFuel/Propulsion System7—
2016 GMC Sierra 2500HDFuel/Propulsion System7—
2017 GMC AcadiaFuel/Propulsion System5—
2017 GMC SavanaFuel/Propulsion System5—
2016 GMC SavanaFuel/Propulsion System5—
2018 GMC Sierra 2500HDFuel/Propulsion System3—
2017 GMC TerrainFuel/Propulsion System3—
2016 GMC AcadiaFuel/Propulsion System3—
2016 GMC TerrainFuel/Propulsion System3—
2018 GMC CanyonFuel/Propulsion System2—
2018 GMC SavanaFuel/Propulsion System2—
2017 GMC Sierra 2500HDFuel/Propulsion System2—
2017 GMC Sierra 3500HDFuel/Propulsion System2—
2016 GMC Sierra 3500HDFuel/Propulsion System2—
2019 GMC SavanaFuel/Propulsion 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.

Fuel/Propulsion System 80 Equipment 14 Engine 7 Electrical System 6
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GMC filings that name P018B

Source: NHTSA manufacturer communications

Bulletins and campaigns GMC filed with NHTSA whose summary names P018B. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What P018B means

Source: SAE J2012 / OBD-II

P018B 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 GMC and its owners have filed about it; the code’s page across every make has the whole file.

From here
Get a model's new bulletins by email See what owners reported Look up a bulletin by its number Watch a VIN for new recalls

Common questions

Source: NHTSA files and the OBD-II standard

Is P018B a known problem on GMC vehicles?

It is a documented one: NHTSA's files hold 109 manufacturer filings and 1 owner report naming P018B on 20 GMC model years (2016–2019). 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 P018B appear on most?

2016 Yukon (23 documents), 2017 Sierra (11 documents), 2016 Sierra (10 documents).

Does P018B 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.

Where to go next

pages beside this code
Filed alongside P0300 Another code that appears in the same filings and owner reports as P018B.Filed alongside P2635 Another code that appears in the same filings and owner reports as P018B.Vehicle 2016 GMC Yukon The model year P018B is filed against most often.The data Trouble codes by API GET /v1/dtc joins every code to bulletins and owner reports — free tier, no card.