Hello again everyone quick question my 2013 chevy Impala is having one its usual GM issues of the blend door actuator acting up again and clicking ,I was going to attempt to do it myself but am a little bit worried about disconnecting the battery I replaced the one of the passenger side about a year ago and now the difficult one on the driver side is acting up , should I try to save the computers information or not I am a bit worried about the ECMs and all other on board computers , if not that is great and does anyone have any advice on the job for that actuator, all I have seen is that you need to either go through the dash or go up under the steering wheel. 

Thanks everyone again.