What causes a U0373 code?

U0373 can be triggered by several issues — see the verified probable causes and step-by-step diagnostics shared by mechanics and owners on OBDIY.

Can I drive with a U0373 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with U0373 active.

Follow the step-by-step diagnostic on this page, then read the verified fixes contributed by other Heavy Truck owners — the answer marked "Verified Cause" worked for the original poster.

OBDIY

Log in Sign up

OBD-II

U0373

Software Incompatibility with Rear Seat Entertainment Module

What it means

Rear compartment entertainment software is incompatible. Affects displays located in the sleeper area.

Sign in to view symptoms, probable causes, diagnostic steps, severity, and related codes

Log in Sign up free