12v power outlet not working - 2007 Mercedes-Benz ML320 CDI

It is possible that the issue with the rear power outlet not working on your 2016 Hyundai Sonata is due to a problem with the power outlet relay in the engine fuse box compartment. You should inspect the relay and see if it has any visible damage or if it is loose. If it is damaged or loose, you should replace it. If the relay looks fine, you can check for any other fuses in the engine fuse box that may control the rear power outlet. If you are not familiar with electrical systems, it is recommended that you take your vehicle to a qualified technician for further diagnosis and repair.

Have you checked with a test light to see if you have power at your 12v outlet ?

The fuse for the console outlets is a 20 amp fuse #33 in the fuse block. There is a relay involved and a 10 amp fuse for the control side of this relay. It, the fuse, is #19 in the fuse block. Check both fuses as either can make the circuit not function.

check the fuses under the dash

Check fusses for power outlets might be more then power out lets on same fuse check owners manual

Could be debris in the socket of each outlet. You would need to gain access to the back of the sockets to check for power and ground.
Keep in mind you may have a fuse for the outlets and another for the actual cig lighter.

I was searching for this fuse. All the above fuses mentioned were not popped on my vehicle and the 12v power was the only thing not working. Look under the hood by the latch. There is another fuse box by the hood latch. Open that and it will be #16 & #18 one is your 12v power, the other is cig lighter. Both of mine were popped. Replaced those and my problem was fixed.

Answer: Its a prius and you should feel bad

On our 2001 Chevrolet Venture (same vehicle under the sheet metal), both the front and rear 12v outlets are controlled by the same fuse, which is in the fuse box located next to the passenger front door. If one of these outlets blows the fuse (a portable ball/tire inflator will do the trick with us), all of them will shut down.
I have also had the 12v outlets stop working, even when the fuse was good. I discovered that I had a bad connection at the fuse box; wiggling the fuse box assembly itself would cause the outlets to flicker on and off. Detaching and re-attaching the modular cable that connects the fuse block seems to have corrected that problem for the most part. However, sometimes, our 12v outlet will still flicker, even though power remains constant to everything else in the vehicle.

Faulty reciever ,,, Worth checking the plug assy for internal damage . Check that the sat receiver is within the power capabilities of the vehicles acessory plugs < 10amp .