My 09 LT loses power steering after being parked several times consecutively (lots of steering wheel movement). The power steering is gone only when the car isn't moving. There isn't a problem when it is. It would take a long time before power steering gets restored for when the car isn't moving. What gives? Is it because the motor is overheating or is it a prevention so the power steering doesn't rob the battery of all its power?

 

My 06 did that for a long time till one day on the freeway the speedo dropped to 0 and it said POWER STEERING on the DIC It turned out to be the speed sensor.

 

i have an 05 ss sc and its doing the same exact thing. did your security light stay on then when it happened?

 

I don't remember.. I do know i got a CEL though

 

I got no messages in the dic...

 

when mine does it the guages sweep a couple times then the dic will tell me low fuel no power steering and the security light will come on and stay on. then ill turn off the car and a few minutes later the car is back to normal. wtf?

 

My car would do that after it was parked for a long period of time.

I got the steering column replaced under warranty and I haven't had a problem since.

 

well unfortunately mine is well past the warrenty stage!

 

Its the VSS vehicle speed sensor. The power steering is speed sensitive, so when this sensor goes out, so does the power steering