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Manufacturer communication · Service campaign

IC BUS service campaign 25101

IC BUS filed this with NHTSA as a service campaign dated May 27, 2025, received Jun 4, 2025, about the electrical system. It names 4 model years (2022–2025). 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 communication

Certain IC Busâ„¢ Electric CE Series buses may have the front and rear A/C evaporator temperature sensor harness routed incorrectly.

Manufacturer campaign id 25101 Kind Service campaign Manufacturer date May 27, 2025 Received by NHTSA Jun 4, 2025 Components Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
25101Service campaignMay 27, 202511019100not yet checked

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 them

Also filed against: 2022 IC BUS Evsb; 2023 IC BUS Evsb; 2024 IC BUS Evsb; 2025 IC BUS Evsb.

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.

Common questions

Source: NHTSA, 49 CFR 579.5

Is IC BUS 25101 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 25101 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 25101 cover?

The manufacturer filed it against 4 model years: 2022 IC BUS Evsb, 2023 IC BUS Evsb, 2024 IC BUS Evsb, 2025 IC BUS Evsb. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.