Dodge Caliber failed smog test due to onboard diagnostics not being ready after software update on Dodge Caliber

Some Dodge Caliber owners report experiencing difficulties passing smog tests due to onboard diagnostics not being ready after software updates. These issues can arise when the smog machine checks the vehicle's computer system, requiring all monitors to complete their self-tests without any diagnostic trouble codes (DTCs) recorded. Owners have noted that vehicles with illegally modified software will fail the inspection, and resetting the Check Engine Light (CEL) with handheld programmers may adversely affect the readiness monitors, leading to failure. Additionally, some report that software updates related to shifter recalls can reset the vehicle's computer and unset the readiness monitors, contributing to failed smog tests. To avoid these complications, it is crucial for owners to ensure that any modifications or software updates comply with California Air Resources Board (CARB) regulations.