2013 RDX Shaking when accelerating, usually around 1.5K to 3K RPMs and usually when going up the hill.
No Check Engine light and no DTC codes at all.
To me seems like it’s either engine, transmission or awd system, but what do I know.

also often when accelerating either uphill or on level surface, around these same RPMs, there is a high pitch noise, but this noise happens when the shaking doesn’t happen. It’s either the shaking or the noise, unless the shaking is louder than the noise and I don’t hear it when the shaking happens. The noise sounds to me like an electronic coil or small transformer noise.

but I’m mostly concerned about the shaking.

 

I will check tires, suspension and wheel bearing first whenever I have a shaky steering wheel.

 

steering wheel doesn’t shake tho.
but the rest of the car does

 

Wheel bearing can cause vibration without causing steering wheel shake. You can also check the engine mount.

 

How many miles do you have on your 2013? When was the last time you changed the transmission fluid and transfer case fluid?

 

52,000 miles.
I never changed neither of those fluids.
Im second owner, but I’m sure first owner didn’t charge them either. I bought it from first owner it had less than 10k miles on it.

 

I would start by changing the transmission fluid and transfer case fluid. There are "how to" videos on this forum that show how to do each. If you are handy, it pretty easy.

 

I had a similar problem with my 2004 Accord Coupe; it seemed to happen in a particular range (from about 58mph to 63 mph), and while not very bad, it was worrisome. I made it go away (about 90% gone, at least) by changing both lower control arms in the suspension.


RFT!!!
Dave Kelsen
--
I can't think of anything worse after a night of drinking than waking up next to someone and not being able to remember their name, or how you met, or why they're dead. -- Laura Kightlinger

 

All Honda/Acura automatics require regular transmission fluid changes. That would be code 3 on the maintenance minder that comes on when the oil life reaches 15%.

That said, there is an additional item you can read about here:

http://www.urvi.net/forumfiles/SB/B17-017.PDF