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Vehicle recall 18V555000 · August 22, 2018

Kenworth C500, T660 and 2 more models

The engine harnesses may have been manufactured without check engine light (CEL) and stop engine light (SEL) circuits, preventing the driver from being warned of a serious engine…

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary
PACCAR Incorporated (PACCAR) is recalling certain 2016-2019 Kenworth C500, T660, T800, and W900 vehicles, equipped with 1.9M ISX15 engines. The engine harnesses may have been manufactured without check engine light (CEL) and stop engine light (SEL) circuits, preventing the driver from being warned of a serious engine problem.
Consequence
If the driver is not warned of a serious engine problem, the engine may unexpectedly fail, increasing the risk of a crash.
Remedy
PACCAR will notify owners, and dealers will inspect or test the ISX15 engine harness, and install an overlay jumper harness to supply the missing CEL and SEL circuits, free of charge. The recall began November 30, 2018. Owners may contact PACCAR customer service at 1-918-259-3258. PACCAR's number for this recall is 18KWE.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Recall details

NHTSA campaign
18V555000
Reported to NHTSA
August 22, 2018
Filed by
PACCAR Incorporated
Manufacturer campaign
18KWE
Owner notification
November 30, 2018
Vehicles potentially affected
11,429
Initiated by
the manufacturer
Components
Electrical system › Wiring; Engine and engine cooling › Engine › Diesel
Recall 18V555000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

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