Isuzu service campaign V2501
What it saysThe original calibration in the TCM of certain 2025MY n-gas vehicles contained incorrect logic that may unnecessarily cause DTC P175E to SET and illuminate the check engine malfunction indicator light (MIL). NHTSA’s full summary ↓
Isuzu filed this with NHTSA as a service campaign dated Feb 27, 2025, received Feb 4, 2025, about the power train — 4 documents under this number: CB25-K-001A, SB25-K-001A, V2501_DEALER NOTICE, CB25-K-001. It names 1 model year (2025). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
SERVICE BULLETIN -- THE ORIGINAL CALIBRATION IN THE TCM OF CERTAIN 2025MY N-GAS VEHICLES CONTAINED INCORRECT LOGIC THAT MAY UNNECESSARILY CAUSE DTC P175E TO SET AND ILLUMINATE THE CHECK ENGINE MALFUNCTION INDICATOR LIGHT (MIL). AN UPDATED TCM CALIBRATION CORRECTING THIS CONCERN IS NOW AVAILABLE. ADDITIONALLY, THE TRANSMISSION FAST LEARN MUST BE COMPLETED AFTER THE TCM CALIBRATION IS COMPLETED. DEALERS ARE TO REPROGRAM THE TCM WITH A CORRECTED SERVICE CALIBRATION AND PERFORM THE TRANSMISSION FAST LEARN. FOLLOW THE SERVICE PROCEDURE BELOW TO UPDATE THE TCM CALIBRATION AND PERFORM THE TRANSMISSION FAST LEARN AS REQUIRED.
Trouble codes it names: P175E
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| CB25-K-001A | Service campaign | Feb 27, 2025 | 11015067 | PDF, 475 KB |
| SB25-K-001A | Service bulletin | Feb 19, 2025 | 11015066 | PDF, 257 KB |
| V2501_DEALER NOTICE | Service campaign | Jan 31, 2025 | 11013608 | PDF, 139 KB |
| CB25-K-001 | Service campaign | Jan 31, 2025 | 11013606 | PDF, 430 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against: 2025 Isuzu N-Series.
None of these model years has a page on this site (it covers EPA-certified cars, trucks and SUVs from 2016), so the bulletin is listed here on its own.
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Isuzu, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Isuzu V2501 a recall?
No. A service campaign is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls.
Is the V2501 repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does V2501 cover?
The manufacturer filed it against 1 model year: 2025 Isuzu N-Series. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.