PACCAR service campaign 26PACB
What it says"(KW): Certain Kenworth K270 and K370 Battery Electric Vehicle (BEV) chassis equipped with certain DANA cradle harnesses may intermittently lose electrical continuity at one or more C40 connector pins. NHTSA’s full summary ↓
PACCAR filed this with NHTSA as a service campaign dated Jul 2, 2026, received Jul 20, 2026, about the electrical system. It names 8 model years across Kenworth and Peterbilt (2022–2026). 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.
One page for every brand it was filed under. Each brand’s bulletins: Kenworth · Peterbilt.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
"(KW): Certain Kenworth K270 and K370 Battery Electric Vehicle (BEV) chassis equipped with certain DANA cradle harnesses may intermittently lose electrical continuity at one or more C40 connector pins. This can occur without warning and cause loss of propulsion, increasing the risk of a crash. Certified BEV technicians will inspect the C40 connector and replace the cradle harness, if necessary. This safety recall defect is identical to 25KWD and applies to certain Canadian chassis added on 07/02/2026. (PB): Certain Peterbilt Model 220 Battery Electric Vehicle (BEV) chassis equipped with certain DANA cradle harnesses may intermittently lose electrical continuity at one or more C40 connector pins. This can occur without warning and cause loss of propulsion, increasing the risk of a crash. Certified BEV technicians will inspect the C40 connector and replace the cradle harness, if necessary. This safety recall defect is identical to 25PBD and applies to certain Canadian chassis added on 07/02/2026."
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 26PACB | Service campaign | Jul 2, 2026 | 11035098 | PDF, 416 KB |
What the document itself lists
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| CBL1775126 | Supplier Code 23031EV SRT Code B26-32A | 1 hrs |
| 23031EV | SRT Code B26-32A | 1 hrs |
Read by machine from the document NHTSA serves (14 pages), read Sep 30, 2026. A part number is shown only where it matches PACCAR’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote.
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 themKenworth 4 model years
Also filed against: 2024 Kenworth K270; 2026 Kenworth K270; 2024 Kenworth K370; 2026 Kenworth K370.
Peterbilt 4 model years
Also filed against: 2024 Peterbilt 220; 2026 Peterbilt 220; 2022 Peterbilt 520; 2025 Peterbilt 520.
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.
More bulletins about the electrical system
Source: same model, same component group8 other manufacturer communications filed against these PACCAR models under the same component group (electrical system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 46-025 | Service campaign | Sep 30, 2026 | Software updates are available for certain Peterbilt Model 220 BEVs that experience battery pack cell imbalances. |
| 25KWD 25PBD | Service campaign | Jul 2, 2026 | Additional US chassis have been added, along with additional Canadian chassis under identical safety recall 26PACB. |
| 46-022 | Service campaign | Feb 26, 2026 | Certain Model 220, K270, and K370 BEV chassis are broadcasting incorrect VINs to PACCAR Solutions. |
| 25PBD/KWD | Service campaign | Aug 18, 2025 | "Safety Recall 25KWD: K270E/K370E Battery Electric Vehicle (BEV) Dana Cradle Harness Connector Safety Recall Parts and procedures are now av… |
| 98-030 | Service campaign | May 31, 2025 | 5/29/2025: A new Ethernet Multiplexed Architecture (EMUX) Service Tool Kit service manual (SM034-022) has been released to provide general u… |
| 46-016 | Service campaign | Apr 30, 2025 | 4/29/2025: Campaign A software update is available for 520EV and 579EV Battery Electric Vehicles. This software update corrects or improves… |
| 43-080 PB | Service campaign | Mar 26, 2025 | As of 03/25/2025, this campaign has resumed. Software updates are now available to complete this campaign. |
| 46-013 | Service campaign | Feb 5, 2025 | Certain Peterbilt 579EV and 520EV Battery Electric Vehicles were built prior to the availability of certain labels and Low Voltage Distribut… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Kenworth and Peterbilt, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is PACCAR 26PACB 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 26PACB 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 26PACB cover?
The manufacturer filed it against 8 model years across 2 brands (Kenworth and Peterbilt): 2024 Kenworth K270, 2026 Kenworth K270, 2024 Kenworth K370, 2026 Kenworth K370, 2024 Peterbilt 220, 2026 Peterbilt 220 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: built 21 Oct 2022 – 4 Jul 2024; built 25 Feb 2021 – 22 Sep 2023 — the build date is on the certification label in the driver’s door jamb.