Joined: Aug 2015
Posts: 12
Battery Blanket
12/8/2015 at 10:01 AM
You shouldn't need one!!!
I drive a 2007 GMC with factory command start and have never had a problem.
Make sure your charging system is functioning properly and the block heater works!
Also make sure you run the vehicle long enough to charge the battery, this may require a drive on the highway once and a while