Seems like I've read somewhere the glow plugs on our Cruzes are supposed to last 100K miles. I'm at 165K and still on the originals. I have noticed the past couple days when remote starting, it sounds a bit different for the first few seconds. I may just be overanalyzing. 
Either way, Can someone with access to a service manual please post the replacement procedure here?
Either way, Can someone with access to a service manual please post the replacement procedure here?