Brake Hold System

My 2023 Tundra seems to be activating the brake hold system automatically when I drive in 4H. When starting out in reverse or drive it feels like the brake is on until I push the accelerator pretty hard, then it shudders a little, smooths out and drives fine until I stop again. No issues in 2H and I have turned the brake hold system off. Is this normal?

 

are you turning after you switch to 4 hi? what conditions, snow and ice, dry pavement?

 

Wet pavement, cold (<45 degrees) and yes now that I think of it, it does happen when I am turing - not when going straight.

 

ok, your not in slippery enough conditions for a part-time 4wd system. Whats happening is your drive line is binding and by pushing the gas harder, your powertrain is overpowering the driveline.

STOP doing this, you can break stuff.

part-time 4wd systems need a good amount of slippage to work right, just use 2wd in wet conditions, 4wd is not needed.

think snow, mud, or ice for 4wd

 

Thanks!

 

Yep that’s driveline bind

 

Drivers manual; states to drive in 4 wheel drive for 10 miles a month to keep front system lubricated. So I assume that is only while going straight and not stopping?

 

Yes. Or drive on a snow covered or dirt road where turning is OK. In my experience you don't need 10 miles. I just pop it on for a 1/4 or 1/2 mile stretch of straight road every month or so. That kept my Tacoma 4wd working fine for 15 years. This winter the problem solves itself with all the snow we have had.

 

yes, I usually do that on a county highway , I don't do a full 10 miles, just pop it in and out a few times going straight.

if you feel it bind at all, BACK OFF, and straighten out the wheel to relieve the pressure on the driveline

 

Thanks