Traction control light and abs light

Something happened to me today... I was driving my car and my trac control and abs were on.... I put my car in reverse and got out of a parking... And the traction control and abs went off... What could that be? Something happened to me today... I was driving my car and my trac control and abs were on.... I put my car in reverse and got out of a parking... And the traction control and abs went off... What could that be?

I have the same issue as well and my brakes are good still only 1 1/2 years old and tires 1 year old. I have a mechanic that may not know how to fix it but here's the story. I have a Audi A6 2.7T 2001 Sports Pack and the traction control and ABS lights would come one when at high speeds or if i try to go fast at a stop light. The light would go away after i release the gas and do notice a slight power lose. This all started to happen when i got my car back from the mechanic, they originally tried to troubleshoot a coolant leak and they first thought it was the coolant pump which was replaced when i did the timing belt 2 and a half years ago. They removed the bumper and all to check the coolant pump but later said it was the Thermostat cover housing. When i got my car back these lights started coming on so i went back and he said it was the Master Air Flow sensor, so they replaced it but I still get these light coming on. I'm going back a third time but wanted to see if I can shed some light to them to help them troubleshoot the issue.

I'm not a car repair guy but if I had to guess it's something they didn't put back together right. The issue wasn't happening prior to me coming into their shop. And I don't want to keep paying for charges they think the problem is. I have the same issue as well and my brakes are good still only 1 1/2 years old and tires 1 year old. I have a mechanic that may not know how to fix it but here's the story. I have a Audi A6 2.7T 2001 Sports Pack and the traction control and ABS lights would come one when at high speeds or if i try to go fast at a stop light. The light would go away after i release the gas and do notice a slight power lose. This all started to happen when i got my car back from the mechanic, they originally tried to troubleshoot a coolant leak and they first thought it was the coolant pump which was replaced when i did the timing belt 2 and a half years ago. They removed the bumper and all to check the coolant pump but later said it was the Thermostat cover housing. When i got my car back these lights started coming on so i went back and he said it was the Master Air Flow sensor, so they replaced it but I still get these light coming on. I'm going back a third time but wanted to see if I can shed some light to them to help them troubleshoot the issue. I'm not a car repair guy but if I had to guess it's something they didn't put back together right. The issue wasn't happening prior to me coming into their shop. And I don't want to keep paying for charges they think the problem is.