Need help 2nd Gen issue

Any help or suggestions would be greatfull. A few weeks back I took my truck in for a few services one in particular brake fluid flush, about 1 week later I was at a drive threw slowly started to accelerate then the whole truck locked out like all the breaks just kicked in, did that about 3 times in a row, I turned off the truck turned it back on shifted back into drive and it was good to go, happened 2 more times from then till now. My wife said she noticed the ABS light came on and I do have a button for the rear diff lock. Truck drives fine and shifts fine. Any suggestions or help, has anyone experienced this?

 

Have you checked if there's any codes in the ABS module?

 

No I have not is that with an OBII reader?

 

Yes Sir, that’s what they are for.
But not all can read ABS codes.
Should you buy one, make sure it says on the packaging it can read ABS codes.

 

Ok I’ll try that, do you anyone that has had this issue?

 

And abs module can cause a multitude of problems. You almost always have to start with present codes in the ABS module. No way around it, you have to have scanner to even start on most modern cars.

 

So I did take my truck to the dealership and they checked all codes and nothing came up.