05 C6 battery always dies if I don’t drive often
#1
05 C6 battery always dies if I don’t drive often
My 05 C6 battery always dies if I don’t drive often. It’s very annoying since I have a company work car I don’t drive the Vette much. If it sits for more than 1 week without starting, when I try to start its completely dead. I cannot find anything that is staying on or anything.
Anyone ever have or hear hear of this issue? Anything will help.
Thank you!
Anyone ever have or hear hear of this issue? Anything will help.
Thank you!
#5
Burning Brakes
When I drove my Vette everyday, it never discharged the battery. However, since being retired, the battery will go down all by itself if not driven regularly. Too many electronics signaling back and forth i guess. I keep mine on a tender now when I don't drive it. I have a hunch, not proven though, that Onstar may have a lot to do with it draining power. I really don't know of any other electrics, that, are active when the power is off.
#6
Safety Car
My 05 Base Coupe that I sold earlier this year would do the same thing. If it sat in the garage for more than 5 days, it wouldn’t start. After the third jump, I simply bought a new battery. That solved the problem for me. The new battery could sit a week or more and still fire right up. FYI, the battery tested low and did in fact need to be replaced. I then made a point to drive the car every
week in case the car was draining the battery while it sat. I’m in Texas, so it wasn’t exposed to extreme cold, and it was garaged. As mentioned above, a tender might help your situation. My .02!
Joe
week in case the car was draining the battery while it sat. I’m in Texas, so it wasn’t exposed to extreme cold, and it was garaged. As mentioned above, a tender might help your situation. My .02!
Joe
Last edited by Jstan2014; 10-07-2017 at 01:22 PM.
#7
Le Mans Master
Manual or Auto?
If manual, make sure it is in reverse when you park.
If manual, make sure it is in reverse when you park.
#9
Racer
#11
Le Mans Master
05 MY (only), manuals, suffer from some parasitic battery drain unless the car is parked/off and left in the reverse gear.
#12
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My 05 C6 battery always dies if I don’t drive often. It’s very annoying since I have a company work car I don’t drive the Vette much. If it sits for more than 1 week without starting, when I try to start its completely dead. I cannot find anything that is staying on or anything.
Anyone ever have or hear hear of this issue? Anything will help.
Thank you!
Anyone ever have or hear hear of this issue? Anything will help.
Thank you!
#13
Melting Slicks
Member Since: Apr 2005
Location: PNW Cougar Country WA
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For some it was a programing error, some it's mirror lights being on or something else. They even put out several Technical Service Bullitens on the problem for 2005-2006. Post # 2 talks about the problem.
https://www.corvetteforum.com/forums...m-reflash.html
The extra amps running up to 20minute shut down enough to cause the battery problems. Everything should be shut down in 3 minutes or less. When it doesn't it draws to much on the batter and with little use or occasional use battery will fail. Also sometimes caused by On Star drawing amps after shutdown...can pull that Fuse under passenger front well and that solved it for some folks. GL
Last edited by NOWUCME; 10-07-2017 at 07:56 PM.
#14
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My 05 C6 battery always dies if I don’t drive often. It’s very annoying since I have a company work car I don’t drive the Vette much. If it sits for more than 1 week without starting, when I try to start its completely dead. I cannot find anything that is staying on or anything.
Anyone ever have or hear hear of this issue? Anything will help.
Thank you!
Anyone ever have or hear hear of this issue? Anything will help.
Thank you!
#16
Burning Brakes
Member Since: Nov 2005
Location: Atlanta Metro area GA
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When I drove my Vette everyday, it never discharged the battery. However, since being retired, the battery will go down all by itself if not driven regularly. Too many electronics signaling back and forth i guess. I keep mine on a tender now when I don't drive it. I have a hunch, not proven though, that Onstar may have a lot to do with it draining power. I really don't know of any other electrics, that, are active when the power is off.
It really is ridiculous. Two weeks was about the amount of time before I would have dead battery syndrome. Finally bought a tender and that solved a problem that should never have existed.
I have an Audi that electronically makes my C6 look like a Model T and it can sit for a month or more without a battery drain issue...
#17
Intermediate
I heard this advice from my car's previous owner (2008, Manual), so I always put it in reverse when I park it. BUT... please explain *why* this makes a difference, and is it by design from GM, or just something that someone figured out to do?
#18
The reverse when parking is only on '05 manuals.
Does not pertain to any other C6.
eta: it is because the battery continued to draw, and the car never fully shut down except when in R.
Does not pertain to any other C6.
eta: it is because the battery continued to draw, and the car never fully shut down except when in R.
Last edited by owc6; 10-08-2017 at 11:17 PM.
#19
Le Mans Master
Look at the Factory User's Manual for the 2005 MY, pp 2-22. See the Notice:
Stopping Your Engine
If your vehicle has an automatic transmission, move the
shift lever to PARK (P) and press the ACC button. If
the shifter is not in PARK (P), the vehicle will go
into accessory mode and the DIC will display SHIFT TO
PARK. Once the shifter is moved to PARK (P), the
vehicle will turn off.
If your vehicle has a manual transmission, move the
shift lever to REVERSE (R) and press the ACC button.
If the shifter is not in REVERSE (R), the vehicle will
go into accessory mode and the DIC will display
SHIFT TO REVERSE. Once the shifter is moved to
REVERSE (R), the vehicle will turn off.
If the keyless access transmitter is not detected while
going to off, the DIC will display NO FOB – OFF
OR RUN?.
See
DIC Warnings and Messages on page 3-53
for
more information.
Notice:
If you do not put a manual transmission in
REVERSE (R) before exiting your vehicle, the
battery will drain and could be damaged. Always put
a manual transmission in REVERSE (R) before
shutting off the engine and exiting the vehicle.
Stopping Your Engine
If your vehicle has an automatic transmission, move the
shift lever to PARK (P) and press the ACC button. If
the shifter is not in PARK (P), the vehicle will go
into accessory mode and the DIC will display SHIFT TO
PARK. Once the shifter is moved to PARK (P), the
vehicle will turn off.
If your vehicle has a manual transmission, move the
shift lever to REVERSE (R) and press the ACC button.
If the shifter is not in REVERSE (R), the vehicle will
go into accessory mode and the DIC will display
SHIFT TO REVERSE. Once the shifter is moved to
REVERSE (R), the vehicle will turn off.
If the keyless access transmitter is not detected while
going to off, the DIC will display NO FOB – OFF
OR RUN?.
See
DIC Warnings and Messages on page 3-53
for
more information.
Notice:
If you do not put a manual transmission in
REVERSE (R) before exiting your vehicle, the
battery will drain and could be damaged. Always put
a manual transmission in REVERSE (R) before
shutting off the engine and exiting the vehicle.
Last edited by BlindSpot; 10-09-2017 at 07:31 AM.
#20
Safety Car
Look at the Factory User's Manual for the 2005 MY, pp 2-22. See the Notice:
Stopping Your Engine
If your vehicle has an automatic transmission, move the
shift lever to PARK (P) and press the ACC button. If
the shifter is not in PARK (P), the vehicle will go
into accessory mode and the DIC will display SHIFT TO
PARK. Once the shifter is moved to PARK (P), the
vehicle will turn off.
If your vehicle has a manual transmission, move the
shift lever to REVERSE (R) and press the ACC button.
If the shifter is not in REVERSE (R), the vehicle will
go into accessory mode and the DIC will display
SHIFT TO REVERSE. Once the shifter is moved to
REVERSE (R), the vehicle will turn off.
If the keyless access transmitter is not detected while
going to off, the DIC will display NO FOB – OFF
OR RUN?.
See
DIC Warnings and Messages on page 3-53
for
more information.
Notice:
If you do not put a manual transmission in
REVERSE (R) before exiting your vehicle, the
battery will drain and could be damaged. Always put
a manual transmission in REVERSE (R) before
shutting off the engine and exiting the vehicle.
Stopping Your Engine
If your vehicle has an automatic transmission, move the
shift lever to PARK (P) and press the ACC button. If
the shifter is not in PARK (P), the vehicle will go
into accessory mode and the DIC will display SHIFT TO
PARK. Once the shifter is moved to PARK (P), the
vehicle will turn off.
If your vehicle has a manual transmission, move the
shift lever to REVERSE (R) and press the ACC button.
If the shifter is not in REVERSE (R), the vehicle will
go into accessory mode and the DIC will display
SHIFT TO REVERSE. Once the shifter is moved to
REVERSE (R), the vehicle will turn off.
If the keyless access transmitter is not detected while
going to off, the DIC will display NO FOB – OFF
OR RUN?.
See
DIC Warnings and Messages on page 3-53
for
more information.
Notice:
If you do not put a manual transmission in
REVERSE (R) before exiting your vehicle, the
battery will drain and could be damaged. Always put
a manual transmission in REVERSE (R) before
shutting off the engine and exiting the vehicle.
Sounds like a work around because they couldn't figure out how to get the car to shutdown after it was parked. I guess they fixed the issue in 2006.
This is just another of unique issues with the 2005 model Corvette. Just another reason not to buy the first model year of a new generation of car.