I have a 2010 LTZ, white diamond paint. I have already noticed a place that needs attention. Where's the best place to buy the white diamond paint? Any tips on touch up procedure appreciated.

You can buy a little bottle with a brush in the cap from the dealer. Just make sure that you shake the bottle real good and dab the paint on sparinglt withoujt any pressure.

You can buy a little bottle with a brush in the cap from the dealer. Just make sure that you shake the bottle real good and dab the paint on sparinglt withoujt any pressure.
Any guess on cost?

While I'm at it here, I also have a black 08 Impala with several paint chips. Are the black markers from auto parts stores any good, or should I just use touch up paint?

I would't use anything other than the touch up paint. It should cost about $6.00.

I have a 2010 LTZ, white diamond paint. I have already noticed a place that needs attention. Where's the best place to buy the white diamond paint? Any tips on touch up procedure appreciated.

For 2010 models, you can only get the paint from the dealer. The Auto supply stores don't have them yet. I paid $9.97 for it when I bought it from the dealer for my previous car.

Regarding White Diamond, my last car was a White Diamond Caddy CTS. At first, I had a lot of trouble getting the touch up paint from the dealer. They told me it's a special paint and it was very hard to duplicate it in touch up material - they couldn't get the paint to match correctly. A couple of weeks later, I was able to get the paint from the dealer and they were correct. The touch up paint was not even close to the color of the car. White Diamond tends to look a different color in different amounts of light. I've seen times where it has a silvery look to it and other times where it looks beige and yet other times where it looked white. The touch up paint was way too silver.

What I ended up doing was buying white touch up paint from an Auto Parts Store. I mixed the White Diamond with the White paint in a paper plate. I put it next to the car until I got the color right. That worked pretty well. Aside from the fact that the White Diamond didn't match, it was very watery for some reason, so it was hard to get it to cover. The regular White touch up paint was thicker, so it mixed well with the White Diamond.

I just bought a can for $13 at the dealer -- For GM touch up paint dont cheap out (and for those lucky to have a nearby dealer that doesnt charge "MSRP" it might be closer to 9 or 10.

Touch up paint + some wet sanding and color matching if needed for your car (seems like it from above comment) should work well. If you're going to ever hit a larger area buy the spray can. Its a small can that has the same MSRP and is also color code specific.

Either way, its also good to have a spray can of clear coat too if you plan on getting the match fairly close IMO. I have used for a few projects and it's cheap at Pepboys. Buy the "Truck/SUV" version. Exact same paint from what im told, it was about $.50 more, and you get twice as much.

But remember to ask the dealer about the white diamond. As I said, it didn't match well due to the characteristics of the White Diamond paint (the dealer had warned me about this). I had to do a little mixing with the White Diamond and regular White touch up paint to get the color right. But that was with a Caddy CTS. Maybe the Malibu White Diamond is slightly different.

The other thing I noticed with the dealer touch up paint is that if you put a few layers down (similar to wood finishes) they get a bit closer.

I dont know how comfy you are wet sanding but you may also try a few thin layers. But detailed painting or wasting it on a useable brush is a huge tradeoff with those cans, and they're also the only option. I work across the street from an art store so have debated getting a real paintbrush(like a small canvas or whatever water color style brush.)

Good luck