Sounds like Acura is just throwing parts at the RDX to see what works. I'm on my 4th and 5th Acura. Acura vehicles really really hate low power. Every time I had that many codes/alarms/warnings is because of low power issues. Usually, a bad Acura battery starting to fail (bad cell). Second issue is the OEM alternator not putting out enough power to recharge the battery and run the vehicle (usually at +100,000 miles type of issue). Next is a grounding issue causing the system to send error codes (poor ground on chassis or battery with being loose or has corrosion). Sometimes an engine bay fuse box or control module seal isn't tight and moisture is causing the issue. Then; a power drain issue from a bad module or electrical part somewhere causing the error codes or draining power too low causing error codes being reported from a lot of systems downstream.
I've noticed the Acura codes seem to give you the symptoms from the issue instead of the exact part causing the problem. Acura wanted to change out my alternator because of the codes when the real issue was a dying cell in the OEM battery.
I've noticed the Acura codes seem to give you the symptoms from the issue instead of the exact part causing the problem. Acura wanted to change out my alternator because of the codes when the real issue was a dying cell in the OEM battery.