FWD will stand for front wheel drive.
The Curt T-Connector Vehicle Wiring Harness # C56353 is the correct harness for your 2019 Prius LE front wheel drive. It sounds like the connector that mounts behind your bumper is not connected properly. This connecter is where the powered converter gets its signal for the brake lights and running lights. This is step 12 of the instructions that I have linked below for you to reference.
You will not need to connect the red wire to ground as you... view full answer...
The Curt # C11276 is designed to fit all trim levels and or options for the Toyota Prius in the 2011 model year. From what you are describing, I believe the hitch is just flexed out of alignment a little bit.
Hitch manufacturers design the frame attachment arms with mild steel so that they can flex. They do this to prevent stress fractures from occurring over time due to changes in temperature, impact from potholes, and anything that can cause the vehicle frame to twist. Because they are... view full answer...
The first thing I would do is review the installation video that I attached for a similar product as the Curt Harness # C56147 to make sure you have everything installed correctly.
Next thing I would do is use a circuit tester like our part # PTW2993 to test for voltage on the input side of the converter box. When the key is off there should not be voltage on these circuits with the exception of the battery circuit. If there is voltage on these circuits, then you know the problem is in... view full answer...
The EcoHitch Hidden Trailer Hitch Receiver - Custom Fit - 2" # 306-X7196 should be torqued to 40 ft lbs. The hitch receiver itself normally doesn't squeak, and lubricating the hardware will not help. Normally you would do the opposite and add lock-tite thread locker like # LT37420.
I'll send you the entire installation instruction link. view full answer...
The trailer wiring kits we offer for your 2012 Toyota Prius like the Curt # C56147 that you referenced actually plug in line with the taillight connectors of the vehicle and do not require a special t-connector for trailer wiring.
I attached an install video for this kit on a similar Prius as yours for you to check out as well. view full answer...
Your Flint Hill Goods Square LED Brake Light Hitch Cover for 2" Hitches # FHG72VR, is operating correctly. It should not work with turn signals at all, only for a running light and brake light.
Normally on a vehicle or trailer that has combined brake and turn signals, the turn signal overrides the brake light on the side that is blinking. For this unit, it is the other way around. Its better that way for a vehicle because a flashing red light at the center of a vehicle does not really... view full answer...
I am sorry to hear you ran into an issue with the Curt T-Connector Vehicle Wiring Harness # C56353 you purchased for your 2020 Toyota Prius FWD.
Since the issues you are having are the brake lights and the running lights, and both of those circuits get power from the grey connectors on the harness I recommend double checking that those connectors are connected correctly and securely.
If they are then you will want to use a circuit tester like # PTW2993 to test the red and brown wire... view full answer...