I replaced the battery on my own, but now the monitors won't reset, so I'm not able to do a smog check.
The monitors only reset after each test has passed. The monitors will need to take in some driving, at different speeds and conditions, for the change to pass. If they do not pass after driving for a few days, then I recommend having a mechanic check your car to see if there could be another issue, or if a particular drive cycle is needed to get them to pass.
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