P2135
3 owner reports and 2 manufacturer filings across 5 model years from Honda, Mercedes-Benz, Nissan.
Where P2135 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2016 Honda Pilot | Vehicle Speed Control | — | 1 |
| 2019 Mercedes-Benz C-Class | Electrical System | — | 1 |
| 2021 Nissan Frontier | Engine And Engine Cooling | 1 | — |
| 2020 Nissan Frontier | Engine And Engine Cooling | 1 | — |
| 2017 Nissan Sentra | Electronic Stability Control (Esc) | — | 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.
Independent service center confirmed failure on 1/3/2026 with 6 stored fault codes: P2101, P0122, P0222, P0123, P0223, P2135
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P2135. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- NTB21-0802021-09-01 · Engine And Engine Cooling
- MIL ON WITH DTC P0223, P0507 AND/OR P2135 STORED IN THE ECM IF YOU CONFIRM The MIL is ON and one or more of the following DTCs is stored in the ECM: ï· P0223 - TP SEN 1/CIRC-B1 ï· P0507 - ISC SYSTEM ï· P2135 - TP SENSOR-B1 AND There are no drivability concerns. ACTION 1. Confirm the current ECM part number. 2. Reprogram the ECM, if applicable.
What P2135 means
Source: SAE J2012 / OBD-IIThe two throttle position sensors disagree with each other.
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 P2135
Source: NHTSA files and the OBD-II standardCan I keep driving with P2135 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.