P2636
2 owner reports and 7 manufacturer filings across 3 model years from Acura, Chevrolet, GMC.
Where P2636 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2016 Chevrolet Silverado 3500HD | Fuel System, Other | 3 | 1 |
| 2016 GMC Sierra 3500HD | Fuel System, Other | 4 | — |
| 2017 Acura NSX | Fuel/Propulsion System | — | 1 |
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
It was towed to the Acura dealer and diagnosed with Fuel Pump Malfunction with DTC P0087 and P2636 identical to known defect under Recall 23V-858
P2636 transfer pump - driver indicated fuel gauge was fluctuating from full to empty
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P2636. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- PIT5510D2018-03-21 · Fuel System, Gasoline
- This Preliminary Information communication provides information to the technician how to diagnose and repair vehicles that may have fuel gauge that shows empty and the low fuel level indicator is on. Technician will find Diagnostic Trouble Code P2636 will be set in the Engine Control Module. Technician will need to install (Y) Fuel Tank Fill Vent hose. Technician will need to remove the original f
- PIT5510C2017-07-21 · Electrical System
- This Preliminary Information communication provides information to the technician how to diagnose and repair vehicles that may have fuel gauge that shows empty and the low fuel level indicator is on. Technician will find Diagnostic Trouble Code P2636 will be set in the Engine Control Module. Technician will need to install (Y) Fuel Tank Fill Vent hose. Technician will need to remove the original f
- PIT55102016-06-15 · Fuel System, Other — Storage — Fuel Gauge System
- THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN HOW TO DIAGNOSTIC AND REPAIR VEHICLES THAT MAY HAVE FUEL GAUGE THAT SHOWS EMPTY AND THE LOW FUEL LEVEL INDICATOR IS ON. DIAGNOSTIC TROUBLE CODE P2636 WILL BE SET IN THE ENGINE CONTROL MODULE. TECHNICIAN WILL USE NORMAL SERVICE INFORMATION DIAGNOSTICS FOR THE CONCERN. TECHNICIAN WILL OPERATE THE TRANSFER PUMP FOR 2
What P2636 means
Source: SAE J2012 / OBD-IIP2636 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. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about P2636
Source: NHTSA files and the OBD-II standardCan I keep driving with P2636 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.