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If the battery keeps dying, its time to start looking for a short, or looking at the alternator.
A few have reported that in the forum. I think I'm observing a pattern that it tends to happen if the car sits unlocked. Was yours locked or unlocked?Sure would like to hear from others that have had the battery draining down when the car sits for more than a few days
In your bio you state the following:The bottom line is they have no idea why the battery goes dead. My 2014 ctd just came home from 28 days at the dealer and they and chevrolet could not find anything wrong. My case has gone from customer assistance to GM executive office and now to the legal office. All I want is to get my car fixed!
Interesting theory. A quick Google says DEF freezes at around 12F. As long as there's room for it to expand, allowing it to freeze doesn't seem to create a big problem. However, I would suspect that the car is likely to start heating it if it's "disturbed" in anyway - perhaps thinking you're are about to climb in and go somewhere. IIRC, on the gassers, things like the fuel pump will start when you open the door so it's ready to go when you turn the key.My problem occurs only when the outside temperature goes below freezing. I think that the problem is in the DEF heater system but I have been unable to prove it. The def tank has a temperature sensor in it which is monitored by the ECM. At some unknown temperature the ECM tells the glow plug module to turn on the heaters. The heaters are only SUPPOSED to be on when the engine is running.
Not sure about that on the gassers. Only ever heard my fuel pump when the key was "on". However, isn't it true on the diesels that the glow plugs start up when the drivers door is opened? Could it be the same case with the DEF heater?Interesting theory. A quick Google says DEF freezes at around 12F. As long as there's room for it to expand, allowing it to freeze doesn't seem to create a big problem. However, I would suspect that the car is likely to start heating it if it's "disturbed" in anyway - perhaps thinking you're are about to climb in and go somewhere. IIRC, on the gassers, things like the fuel pump will start when you open the door so it's ready to go when you turn the key.
I have a 2012 diesel and in my 4th winter and have never seen the glow plug light on except in the start up check. 8 months ago I was away for 22 days and when I got back the car started right away. We also have a Hyundai petrol car and it started right away as well. Even at 1C the car starts easily without using the glow plugs. Is it possible that a light in the glove box or trunk are not switching off?Not sure about that on the gassers. Only ever heard my fuel pump when the key was "on". However, isn't it true on the diesels that the glow plugs start up when the drivers door is opened? Could it be the same case with the DEF heater?
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Glove box light? Wuz that? (it disappeared before 2013.) But I think both would be on the "10 minute" bus that shuts down 10 minutes after the last "action".Is it possible that a light in the glove box or trunk are not switching off?
That's a good point. Mine has never sat longer than 4-5 days, but my battery did go bad last winter.I'll bet this battery drain issue with the diesel model affects a lot more cars than people believe but they don't know it because the car is driven everyday. I think this issue is the cause of all the batteries that have failed early with the diesel model. I've never had a car or motorcycle that had a battery fail within 2 years.