U0305

Software Incompatibility With Cruise Control Module

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

~$167 (est.)

Symptoms

Disabling the cruise control system
The Check Engine light comes on
Inability to activate cruise control
Adaptive cruise control intermittent (if equipped)

Causes

Outdated cruise control module software
Software version mismatch between modules
Data corruption in ECU memory
Incorrect module reprogramming
Software update problems

How to Fix

Check whether the cruise control module software is up to date
Update module software
Check compatibility of software versions in related systems
Reset adaptations after software update
Check the integrity of the wiring harness between the modules

Related codes

U0300 U0301 U0304