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Dead Battery Again Please Help

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Old Nov 22, 2005 | 05:15 PM
  #21  
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Originally Posted by Burple_X
Bought my car in Feb '05. I now have just over 12k on it. Sometimes it will sit for 5-6 days between drives. I read and keep up with the DBS threads, but have yet to experience it.

When I park the car, the only thing I do is shift to reverse. The key is never left in or near the car. I manually lock the doors and do not use the feature that moves the seat, steering, etc on exit. Maybe I just got a good one
I have had the same experiience but a lot of member have not. I hope GM find's out what the problem is soon and issue's a recall.
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Old Nov 22, 2005 | 07:01 PM
  #22  
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Originally Posted by Vette960
Forgot to mention that when I installed priority start I also replaced the
original battery with an Optima red top. I did not suspect the battery was a problem, just thought I'd start with a "fresh sheet of paper" to sort out the problem. Since P/S install, 2 months ago, I've had 3 DBS incidents.Fully charged battery voltage to begin(12.65 V)each incident. Checked for the flashing red light daily. Noted P/S SD time on car clock
upon reconnect. IOW, I've monitored car daily, until SD, on 3 seperate incidents. As mentioned, since last incident (2 days ago), I've kept FOB
well isolated from vehicle. This was based on the conjecture that I may be storing the FOB -usually in a coat pocket- too close to the vehicle. So far,so good. Also removed fuse #46? (on forum advice) after first
DBS incident;obviously ineffective.
Don't have NAV; do have ONSTAR.

This is interesting. I don't drive my car very many times. I'm thinking maybe a dozen times where I let it sit for more than 2 days after shutdown, had DBS 3 times so about 33%. I have been wishing someone would do a pole for how many times DBS hits per qualifying shutdown (over 2 days).

Am I to understand that your car can sit for many days, maybe even a month and not sag below the trip voltage of the P/S? Or, after maybe 5 days P/S will trip anyway because of sagging voltage caused by normal leakage current?

After I unhook my battery and charge it after DBS events, I only loose the clock and the window indexing, everything else stays. When your P/S trips is that the same thing you loose?

Sorry for million questions. This may sound odd but I envy you for having DBS so many times, I wish I could get it more so I could sort through some variables.

Gary
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Old Nov 22, 2005 | 08:13 PM
  #23  
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After a DBS event,since the battery is diconnected,the car electrics are dead.Yes, I have to reset the clock, window indexing and A/C settings;I assume all engine related memories remain unaffected.
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Old Nov 22, 2005 | 09:39 PM
  #24  
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Originally Posted by Hoonose
Do the automatics beep 3 times if you try to exit the vehicle, and it's not in park?
Will the battery drain if not in park, like the MN6 does if not in reverse?
A persitent 'no fob' warning can mean the fob battery is going, and you might need to place the fob in that slot in the glovebox to start the car.
Sometimes cellphones, other car fobs, and electronic doo-dads will interfere and cause a 'no fob detected' state.
Just for the record: The 3 beeps indicated the fob was left in the car (which it was not - was in my pocket). It was in Park, but the parking brake was not set. That was Thursday nite. Monday morning I got a "no fob detected" whether the fob was in my pocket or inserted in the glove box slot - same with 2nd fob. Dash lights looked normal brightness. I left it in the garage and tried again after work. By this time the car battery was almost dead - I got odd flashing of the courtesy lights and on and off flashing of the instrument panel, followed by visible dimming of the under hood light. I jumped it and was able to start the car and drove around for 20min. to recharge the battery. Everything appears normal. Started OK this morning and again after work. I normally drive every day but last weekend but it sat from Thursday pm to Monday am. Nothing wrong with my fob battery and no known interference from any other electrical devices.

This may not be "classic" DBS, but I don't believe a three week old "daily driver" should normally have a dead battery. My uneducated guess is that the spurious 3 beeps of the horn was just a symptom of the battery operating at a reduced voltage, as was the "no fob detected" dic message on Monday am. As to why the battery was run down???

Last edited by Devils Elbow; Nov 22, 2005 at 09:42 PM.
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Old Nov 23, 2005 | 12:45 AM
  #25  
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Originally Posted by Devils Elbow
This may not be "classic" DBS, but I don't believe a three week old "daily driver" should normally have a dead battery. My uneducated guess is that the spurious 3 beeps of the horn was just a symptom of the battery operating at a reduced voltage, as was the "no fob detected" dic message on Monday am. As to why the battery was run down???
Maybe you just need a good long charge. If the car is that new it may have never been charged up real good, or sat awhile at the factory or dealers and ran down.
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Old Nov 23, 2005 | 01:08 AM
  #26  
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Originally Posted by Cali C6 girl
This is the second time my C6 battery has gone dead in less than three weeks. I took it to the dealer the first time(10/29) and it passed all the test with flying colors and they sent me home. The dealer was quick to remind me to always shift to R before turning off the car, however when I went to drive off the lot I found that they had forgot to shift to R. (So I have trust issues.)
Please help if you know of any tricks or areas of concern I might check. Thanks in advance for your time and drive happy.
It would seem everybody has their own story about how to solve this and that; well, here's mine:
I have an C6 '05 Auto, delivered in April 2005, and have suffered DBS 3x during that time period.
1st time was about June sometime; 2nd time was July-ish; and 3rd time was August-ish.
Solution: Purchased one Battery Tender from Ecker's Corvettes by phone(can be done online) for about 55-60 dollars(ish), and hook it up every time the car sits for more than 3 days. I only unplug it on the morning (or evening) that I will driving the car and BLAM! No problem! Starts right up!
No problem since!
END OF PROBLEM! Finito! Das is Allus. Ciao! Sinonara! See Ya! Auf Fiedersehen! Alloha!
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Old Nov 23, 2005 | 01:10 AM
  #27  
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Originally Posted by BlackMagik
It's a disease that effects possibly all 2005 C6's with manual transmissions called DBS (dead battery syndrome) There is no known cure and not even a known cause.
Thank you for the quick response on DBS. Now I know that I'm not doing anything wrong (I hope ) and others are having the same problems. I have learned alot from this thread and the others now that I know what DBS really means. I will continue to apply my 3 R's of Corvette life: Research-Read-Reverse. Have a great holiday .
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Old Nov 23, 2005 | 01:15 AM
  #28  
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Originally Posted by purple heart
It would seem everybody has their own story about how to solve this and that; well, here's mine:
I have an C6 '05 Auto, delivered in April 2005, and have suffered DBS 3x during that time period.
1st time was about June sometime; 2nd time was July-ish; and 3rd time was August-ish.
Solution: Purchased one Battery Tender from Ecker's Corvettes by phone(can be done online) for about 55-60 dollars(ish), and hook it up every time the car sits for more than 3 days. I only unplug it on the morning (or evening) that I will driving the car and BLAM! No problem! Starts right up!
No problem since!
END OF PROBLEM! Finito! Das is Allus. Ciao! Sinonara! See Ya! Auf Fiedersehen! Alloha!
Seems to me you are on the Battery Tender (1am your time in Fl. when you posted). LOL Thanks for the thought and I will look into it since I only drive my C6 every 10-14 days.
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Old Nov 23, 2005 | 10:06 AM
  #29  
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Originally Posted by purple heart
I have an C6 '05 Auto, delivered in April 2005, and have suffered DBS 3x during that time period.
1st time was about June sometime; 2nd time was July-ish; and 3rd time was August-ish.No problem since!END OF PROBLEM!
Interesting!
Only about 1 DBS in automatics compared to 20 in shifters reported here on the forum. The DBS rate in automatics has so far been cosidered to be due to just plain ole bad battery failure.
Have you had the battery tested?
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Old Nov 23, 2005 | 12:50 PM
  #30  
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Originally Posted by VET4LES
Until GM find's the answer to the DBS I think this is the best solution. When I have my first problem, the priority Start is what I plan on installing.
Why wait? We have one on both the C5 & C6, the Priority Start is a great saver. Had to use it 4 times last week when the valet at a Ritz couldn't get the parking instructions straight Of course, the hotel compensated us for having to go and start the car (could you imagine giving them the key, telling them it only opens the trunk, then try to explain where the pull chord is yada yada yada). We gratefully accepted the upgrade and comp valet for all our "work"
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Old Nov 23, 2005 | 08:31 PM
  #31  
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Interesting thread.

Two automatic C6s with DBS and one of them an '06.

This is the first incident of DBS in an '06 I have seen recorded. If it is truly DBS then this sends the column lock association theory out the window.
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Old Nov 23, 2005 | 08:44 PM
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Has anyone with a replacement battery that is not a Delco gotten DBS?
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Old Nov 23, 2005 | 08:56 PM
  #33  
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Originally Posted by sallen619
Has anyone with a replacement battery that is not a Delco gotten DBS?
Read the post above by Vette960. He put in a Priority Start and an Optima Red Top and got other episodes of DBS afterwards.
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Old Nov 23, 2005 | 09:04 PM
  #34  
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Go under the hood and pull fuse # 46 headlamp washer. Hope that works for you. Good Luck. Save the Wave.>George
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Old Nov 25, 2005 | 11:11 AM
  #35  
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Originally Posted by BlackMagik
It's a disease that effects possibly all 2005 C6's with manual transmissions called DBS (dead battery syndrome) There is no known cure and not even a known cause. It has not been able to be consistently reproduced, it crops up every so many shut downs. Happens on day 2 after shut down if it's going to happen. There are lots of threads about it. I think GM, because of this forum has assigned someone to take a look. We will see.
I have posted my experiences several times on this forum, so I won't replay those. But after 5 times, and 3 trips to the dealer, I have noted my disatisfaction with GM and it has been documented. I have also filed the complaint with the DOT highway safety folks. I even went to the extent of buying a digital data logger to monitor the voltage on my car during an extended period of time (2 days), but have yet to be able to identify or duplicate the problem.

I have purchased and installed the Priority Start, although it has some problems of it's own when the DBS hits. I have found that if when the system shuts down, the PS won't restart it without disconnecting the trigger wire. Once you do that, you can hear the servo switch connect and the PS kicks in. In the meantime, I purchased a portable battery booster to carry in the rear storage compartment. I'm out a few hundred dollars to make sure that I don't get stranded for a 6th time.

The only problem with what I have done is that I probably won't be able to officially document the problem again to GM. And sadly, that is the only way that GM is going to address this. By the way, I am totally convinced after all the investigative work I've done, that this is defintely related to the manual transmission reverse lockout, and not the OnStar, the XMS or the key fobs. I'm still hoping that someone finds the fix.
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Old Nov 25, 2005 | 11:23 AM
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[QUOTE=TonyC6
The only problem with what I have done is that I probably won't be able to officially document the problem again to GM. And sadly, that is the only way that GM is going to address this. By the way, I am totally convinced after all the investigative work I've done, that this is defintely related to the manual transmission reverse lockout, and not the OnStar, the XMS or the key fobs. I'm still hoping that someone finds the fix. [/QUOTE]

I know their working on it at last. As a lot of cars are now off the road for winter, (mine for one) I doubt we are going to hear as much about DBS. Hope soon they will find the problem/s and fix this thing. My belief as I have said many times is get rid of steering lock, reprogram or replace BCM and any necessaty sensors /relays to 06 car status.
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Old Nov 25, 2005 | 08:01 PM
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Originally Posted by sallen619
Has anyone with a replacement battery that is not a Delco gotten DBS?
It's not the battery, its the bus system the runs the electronics of the car.
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Old Nov 28, 2005 | 01:44 AM
  #38  
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HOLY SH#% I just purchased an 06 Z51! SOOOO Happy to be rid of the CLB problem only to read this post!

Purchased the car 01 Nov and it has 1100 miles on it so far. No problems as of yet! The wife religously puts the shifter in REVERSE and the Parking brake on.

Oh Boy,, another class problem!!!! Whats next?

Thanks for all of the info!

Bill Curlee
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Old Nov 28, 2005 | 03:12 AM
  #39  
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Originally Posted by Bill Curlee
HOLY SH#% I just purchased an 06 Z51! SOOOO Happy to be rid of the CLB problem only to read this post!

Purchased the car 01 Nov and it has 1100 miles on it so far. No problems as of yet! The wife religously puts the shifter in REVERSE and the Parking brake on.

Oh Boy,, another class problem!!!! Whats next?

Thanks for all of the info!

Bill Curlee
If your car is an '06 it does not have the mandatory park in reverse requirement.

Fail to park a manual '05 in reverse and you could wind up with a dead battery.

At any rate the whole dead battery issue tends to get blown out of proporton. Way out of proportion. Some of the instances undoubtedly were the result of not leaving the car in reverse. Some were bad batteries to begin with.

http://forums.corvetteforum.com/show...34&forum_id=74

50 people reporting it, but it is a non scientific poll. How many stating that they have had it actually really did have it?
How many reporting it actually shut the car off and parked it in reverse? How many of the 50 were bad Delco batteries?

Allow for the above and the 50 number is not 50 anymore.

197 people voted in that poll and that represents 1.3% of all the '05 Manual transmission C6 owners out there. Hardly a big enough sample size to pronounce it an epidemic.

But there are still a few documented cases where the car was left in reverse and the owner still ended up with a dead battery. It is those few instances which are difficult to figure out, though I am confident that GM will. And if not GM then the aftermarket as we saw with the column lock issue.

Also @ TonyC6:

Is that a new battery that your Priority Start is hooked to, or one that has run down in the past?

Last edited by '06 Quicksilver Z06; Nov 28, 2005 at 11:13 AM.
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Old Nov 28, 2005 | 11:59 AM
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Originally Posted by EB20003
At any rate the whole dead battery issue tends to get blown out of proporton. Way out of proportion. Some of the instances undoubtedly were the result of not leaving the car in reverse. Some were bad batteries to begin with.
Hardly a big enough sample size to pronounce it an epidemic.
But there are still a few documented cases where the car was left in reverse and the owner still ended up with a dead battery. It is those few instances which are difficult to figure out, though I am confident that GM will. And if not GM then the aftermarket as we saw with the column lock issue.
It doesn't seem blown out of proportion when it effects you, man!
I'm even willing to forget about DBS altogether.
Just what percentage of dead batteries, for what ever reason, are you going to accept as the normal? I'd think only a few percent like the '05 automatics have.
But 25%? Even if that percentage is a little higher or lower, it just doesn't matter. That, my friend, is major suckage!
Although I seriously love my ride now, if I was in the market TODAY, I would NOT be looking to buy an '05 shifter. I would only consider an '06.
That, my friend, is major suckage!
But minimizing the problem is of no help to us here with an ongoing problem. We need to continually complain about this issue, and pis* and moan 'til hell freezes over, if need be!
Here's hoping GM comes through for us.
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