Brake/power steering/ABS

I have a 2010 Speed3 and the last time I drove it, I pushed in the brake to slow down and lost all power steering, the ABS and traction control lights came on. When I let off of the brake, everything went back to normal. The only things I have done recently is replaced the alternator and belt. Any ideas on what this could be or has anyone had this issue also?

 

Exactly what you’re describing is what happened when my battery was dead dead after sitting for 6 months undriven. I pushed it downhill, clutch kick started it and drove it to buy a new battery. On the way there, I went to brake going off the exit from a highway and both the brakes and power steering did not do what they were supposed to do entering the curve. It was kind of scary for a second. It just felt like everything died...because it did for a second.


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