U0020 on GMC vehicles
U0020 is named on 7 GMC model years (2017–2020): 31 manufacturer filings and 0 owner reports in NHTSA’s files, across Yukon, Sierra, Sierra 2500HD.
Which GMC model years name U0020
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2017 GMC Yukon | Electrical System | 8 | — |
| 2018 GMC Yukon | Equipment | 6 | — |
| 2017 GMC Sierra | Electrical System | 5 | — |
| 2018 GMC Sierra | Electrical System | 4 | — |
| 2019 GMC Sierra 2500HD | Electrical System | 3 | — |
| 2019 GMC Yukon | Electrical System | 3 | — |
| 2020 GMC Yukon | Electrical System | 2 | — |
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.
GMC filings that name U0020
Source: NHTSA manufacturer communicationsBulletins and campaigns GMC filed with NHTSA whose summary names U0020. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIT5586 Service bulletin2017-10-02 · Equipment — Other — Owners/Service/Other Manual
- This Preliminary information communicates a customer concern ofIPC gauges inoperative or fluctuate, No Start,No Crank,SIR Light / Service Airbag Message, Service Suspension Message,Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback,HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B3980, U0
- PIT5586A Service bulletin2018-03-27 · Steering
- This Preliminary information communicates a customer concern ofIPC gauges inoperative or fluctuate, No Start,No Crank,SIR Light / Service Airbag Message, Service Suspension Message,Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback,HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B3980, U0
- PIT5586B Service bulletin2018-08-27 · Engine
- This Preliminary information communicates a customer concern ofIPC gauges inoperative or fluctuate, No Start,No Crank,SIR Light / Service Airbag Message, Service Suspension Message,Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback,HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B3980, U0
- PIT5586C Service bulletin2019-06-24 · Equipment — Electrical
- This Preliminary information communicates a customer concern of IPC gauges inoperative or fluctuate, No Start, No Crank, SIR Light / Service Airbag Message, Service Suspension Message, Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback, HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B398
- PIT5586D Service bulletin2020-03-11 · Electrical System
- This Preliminary information communicates a customer concern of IPC gauges inoperative or fluctuate, No Start, No Crank, SIR Light / Service Airbag Message, Service Suspension Message, Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback, HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B398
- PIT5586E Service bulletin2020-10-01 · Electrical System
- This Preliminary information communicates a customer concern of IPC gauges inoperative or fluctuate, No Start, No Crank, SIR Light / Service Airbag Message, Service Suspension Message, Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback, HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B398
What U0020 means
Source: SAE J2012 / OBD-IIU0020 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.
Common questions
Source: NHTSA files and the OBD-II standardIs U0020 a known problem on GMC vehicles?
It is a documented one: NHTSA's files hold 31 manufacturer filings and 0 owner reports naming U0020 on 7 GMC model years (2017–2020). 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 U0020 appear on most?
2017 Yukon (8 documents), 2018 Yukon (6 documents), 2017 Sierra (5 documents).
Does U0020 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.