Just had every light on my dash turn on, 4HI and 4LO flashing, with the warnings “Trailer brake erro

I saw a similar post on this. I have a 2020 Tundra TRD Pro and had this happened twice now. When it happened I shut off the truck for a bit, started and it went away, then on the highway the lights came back on again which I was able to get to a dealership a 1.5 away. They still have the truck. Anyone have this happen. Also dealership could not get codes with any reason for failure.

 

Could be an ABS sensor or it could also be your battery volts are low, battery going out. If your battery checks out (load test) then it is likely an ABS sensor or maybe mice got to your wires somewhere.

 

Have not been off road with it or towed anything and nope no deep puddles

 

I blew an abs sensor one time did the same thing. Dang ole swamp in Chesapeake VA ate the road with water and debris and something got hungry for my lines. Rock auto next day delivery fixed it.

 

Welcome from LA (Lower Alabama)! I hope the dealer can find the issue and resolve it. If they do, please post what the problem was.

 

Check and clean your battery posts. I would start easy and cheap first. It has happened to me twice; once was a bad battery and once was corrosion at the posts.

 

That happened to me on my 2019 with about 15,000 miles on it. It was a driver front wheel bearing or abs sensor, they replaced the entire assembly under warranty and the truck has been issue free since the repair. I’m at 58,000 miles now.

 

Thanks I will ask them what needs to be replaced with abs assembly. They replaced left front abs sensor wire

 

So apparently they replaced the wire but the sensor also was bad. I am hoping it’s fixed this time