ViperKiller04

I sold my 2005 c6 to a friend and he's having a problem with it, I feel bad because the car was great for me but he's having a problem and he can't figure it out. I've done some research but I can't come up with a solution.

While driving the car dies, completely everything goes out. After a few seconds everything comes back and it starts fine. Last time when it came back up the dic said service column lock.

Anyone have any ideas?

Homer3D

Loose battery cables? Corrosion at the terminals?

Since it is an 2005, have you (or your friend) replaced the battery? My 2005 had a really bad case of DBS. Replaced it with an Optima and always had it hooked up to a battery tender when I wasn't driving it.

djoneser

What does the charging meter read? A good battery should read over 14, if you are seeing 13.5, you may want to replace the battery. I have a 2005 and was having some odd issues that all went away when I replaced the battery recently.

ViperKiller04

I replaced the battery with a pretty expensive battery designed for custom stereos, it's similar to an optima battery but made by stinger. It's fairly new but I thought it could be a battery too but then again should it run without a battery at all?

TripleAstyle123

Did you ever address the column lock issue with 2005's? I believe there was a fix for this so if that's the code it shows I would search the forum for answers about that specifically. I would replace the battery first as they are the cheapest and easiest fix to any crazy electrical issues with a C6. Good Luck.

TripleAstyle123

C6's are very hard on batterys. Unless you hook it up to a battery tender anytime its parked I would plan on replacing it every 3-5 years. (to prevent the headache of being stranded for something so simple)

torquetube

No it shouldn't.

I had a C6 go lights-out/dead-stick at 70mph on the freeway during a test drive. The cause? Weak battery.

You almost certainly have that, or a related problem with the connections. New batteries resolve 90%+ of these cases - you absolutely positively have to rule it out first.

mike96ss

Agree on the battery as well. Petty much the same thing happened to me with the Column Lock Message on the DIC too. Battery took care of it. Battery was less than 2 years old and it is a daily driver. They do fail. My original battery (2005 car) lasted over 5 years. I replaced it as a preventive maintenance item. Replacement last less than 2 years with almost the same symptoms as mentioned above. Go figure....

I have had the lose cable on the Positive post of the starter as well. Something to check if battery is good.