Do I need to have an insulated garage during the cold Calgary winters for the gs450h? Will the hybrid battery last any longer if the garage is insulated? thx

 

My previous 2008 and my current 2013 GSH have never sat in a garage at all. We have had single digit days and nights and very cold weeks and both cars have started up without a problem. But I am not in Calgary either. But I would think you should be fine...

 

thank you.

 

I parked my car in uninsulated garage. I did not encounter any problem at all.

Another gs450h owner from Calgary

 

Thank you. For winter I am considering putting on 17" tires vs what is currently on 18" - any thoughts

 

I still use 18 inch for winter tires. so I don't know the how is everything going on 17 inch .