I'm having problems with this factory battery not being able to stay charged in this cold canadian weather. Is it possible to hook up 2 batterys? I've been told that Onstar will actually drain your battery a little bit but this is ridiculous, i've had the same problems in my 08 until gm finally replaced it. Any advice would be appreciated.
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Dual battery's in a 2010 sierra slt 6.2L?
- Thread starter Biggyj
- Start date
GMC Customer Service
New member
I'm sorry to hear about the frustration you're having with your Sierra battery. I would suggest calling GM Canada Customer Assistance. They will be able to help you further. Their number is 800-263-3777 and their hours are M-F 7:30am - 11:30pm, Sat 7:30am - 6:00 EST.
Laura
GM Customer Service
Laura
GM Customer Service
I'm having problems with this factory battery not being able to stay charged in this cold canadian weather. Is it possible to hook up 2 batterys? I've been told that Onstar will actually drain your battery a little bit but this is ridiculous, i've had the same problems in my 08 until gm finally replaced it. Any advice would be appreciated.