dirkcrystal1
Aveo System Readiness Check Issue
Summary of the thread
A 2018 Chevrolet Aveo diesel had an incomplete system readiness check at 61875 km, likely caused by using an OBD2 tool that cleared codes and reset the system readiness monitors. To resolve this, a drive cycle was needed, which involves specific driving conditions to allow the car to run its self-tests. A workshop technician confirmed the issue and completed the drive cycle, resolving the problem under warranty at no cost.
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4 comment(s)
dirkcrystal1 (community.author)
Could you explain what a 'drive cycle' is? What conditions must be met to reset the system readiness monitors?
eberhardkrause1
Yeah, clearing codes will do it. A drive cycle is a specific set of driving conditions the car needs to run its self-tests. It's different for every car, but usually involves a mix of highway and city driving, with steady speeds and accelerations. Unless you have the exact procedure for your Aveo, you're better off taking it to a workshop. They'll have the tools and know the specific drive cycle to get it sorted quickly.
dirkcrystal1 (community.author)
I consulted a workshop. The technician confirmed the system readiness reset was from the OBD2 tool. They did a drive cycle, and the system readiness check completed. The service cost 0€, covered by warranty.
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CHEVROLET
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AVEO
eberhardkrause1
Sounds like a pain. Did you recently clear any codes with the OBD2 reader? Sometimes that wipes the system readiness monitors. You need to complete a drive cycle for them to reset before emissions testing.