I drive a 08 cobalt SS with 208,XXX miles. When it gets hot outside my door locks won't open or close. I can here them trying to work but just not enough oomf. They still lock when I turn the car on. I've replaced the driver side & passenger side door lock switches but hasn't fixed the issue. So I'm shopping around for door lock actuators. I can't seem to buy a pair anywhere. They sell them individually but I'd have to mix & match different brands. Now, I thought I read somewhere that the Chevy Impala 06-12 door lock actuators are a direct fit for my car. They have plenty of those for sale & are half the price. Can anyone verify if these 2 cars door lock actuators are interchangeable. I'm thinking maybe even the Chevy Malibu are interchangeable but wouldn't know how source that info. T.I.A.

 

Also curious about the answer as my passenger side door has had this issue develop last summer.

 

Where are you looking and what GM part number are you using?
Quick eBay search brings up lots in the $25-$35 range.

 

​​​​​​I was using the GM part # off Rock Auto. Any hoot. I just checked eBay & found a set for $59 dollars. Free shipping+ tax. It's says in the description it fits. Thank you Jared

 

Ugh I need to fix this too. Let me know what fixes it for you.