sorry I think I messed up I read it wrong my tuner said pcm failed to erase

I was talking to two of my friends that really know there crap and said it can and has happend

I didn't do anything to it the last time I tuned it was about 9 months ago I don't know what happened
i just touched the brakes and all four locked up it starts and runs good so I pluged the tuner in and it said the pcm was eraced

has any body have this happen if so can you give me any info because I don't like going down the highway doing 60mph side ways and every thing you know & try don't work thanks

Hi I was wanting to know if any body has had the pcm erace on them when the have updated the tune before I have a 07 new body style ext cab gmc z71

u7194 9r05 NBS 07 GMC Sierra Z71 extended cab 5.3