After 6 years of owning my RDX , I have had 3 or 4 tail lights go out over the years . Had one yesterday and I 'm replacing all the bulbs out back today. The thing that's bugging me is, I have never had a warning showing up that there is a bad bulb, no quickening of the turn sig or a showing of a light on the dash saying there is a problem. Only way that I have found out, was after someone has informed me of the problem. Are all these RDX's like this?

 

I believe that this is this case for all RDXs in this generation (2013-2018), at least. You have to figure it out yourself when a bulb goes out unfortunately.

 

When the turn signal burns out, if the system is working properly and there are no snag resistors, there 100% should be a quickening of the turn signal. And about everything else, almost all Acuras until those years did not have diagnostics for the tail lights.

 

For giggles I drove to my nearest parts store with out the burned out bulb inserted in the system. After driving a bit I turned on the sig and the indicator light went into the quick pulse, that
I would have imagined it would when showing a burned out bulb.. Interesting conundrum.