Brake Question

I'm new to towing and camping w/ TT.  Have a new 179 and tow w/ a Tacoma 4x4 V6 w/ factory tow package, about to take our first trip.  I have a question about setting up the brake controller.  The controller is a Prodigy 2.  The set-up instructions say to increase the power to the point where the trailer wheels lock up when full manual pressure is applied at 25mph, then reduce the power to the point just before they lock up.  The issue is mine do not lock up at the highest power setting.  The manufacturer of the controller say that the trailer brakes may need adjusting.  The TT dealer that lite single axle trailers won't lock up and setting the pressure that high will burn up the brakes.   I understand not wanting them to lock up and the concern about burning up the brakes. But for purposes of setting up the controller it makes sense to me.   Unfortunately the dealers advice did not provide me any insight as to how to properly adjust the brake controller for a given load.  Any thoughts or advice?

I installed a Prodigy 2 controller in my 2013 Tacoma 4WD a year ago to tow my 179. I ran into the same problem you did and never could get the trailer wheels to lock up per the manufacturers directions. I tried adjusting the trailer brakes but that didn't help. I verified an increase in voltage at the controller pin on the tv connector as the Prodigy is manually manipulated and jacked up the trailer and confirmed that I could use the Prodigy manual control to lock up the wheels. I have used the trailer for the last year on numerous mountain trips with no problems. I settled on a power level of about 6.5 when on full manual and usually run the boost at B1 or B2 when on the highway (refer to the Prodigy directions). 

Originally posted by J-Cat I have used the trailer for the last year on numerous mountain trips with no problems. I settled on a power level of about 6.5 when on full manual and usually run the boost at B1 or B2 when on the highway (refer to the Prodigy directions).

Can someone please explain the boost feature? I have read the manual but not sure it is clear.
I read it as:
- no boost if the TT is lighter than the TV,
- b1 if they are the same weight,
- b2 and 3 if the TT is heavier than the TV.
On steep downhill mountain roads, would you change the boost, or simply use the manual lever to slow everything down?
Somewhat confusing......

Thanks.
 I think I may use B1 on my next trip through the BlueRidge and see how that pans out

Are the voltage settings (e.g., 6.5) and boost (b1, b2, etc) the same on the P2 & P3?