jvc everio gz hd40 help

[cnfabo]

okay i have purchased one of these cameras for use in my car while racing. i made up a camera stand that bolts into the back of my car.now when i tried filming all four times,the camers decided to stop recording just as i took off. the veiw panel would say something like" data was interupted,or lost, press ok to recover. would only recover before i took off. so at home i set it all up again i went for a drive, and it all worked fine. ?? please help as the only reason i got the cam was for racing.it is no good to me if it continues doing this.. thanks..