Last post on Feb 26, 2013 at 6:56 AM
You are in the Chevrolet Suburban & Tahoe
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Chevrolet Suburban, Chevrolet Tahoe, Electrical, SUV
#8 of 252 Re: Battery Drian 2007 LTZ [raleighwolf]
Oct 05, 2009 (5:24 pm)
There is a major design flaw in the Tahoe and Suburban LTZ models. I have a 2007 Tahoe LTZ and my dealer nor Chevy can figure out the problem. I just had my 3rd battery replaced today on mine. It has the same problem as your Suburban, it only takes about 15 minutes with the radio on, doors shut, key in the ignition (not in ACC mode) and the battery will drain to the point of needed a jump. According to my dealer, they think it is a bad module but can't determine which one. Any other ideas out there?
#9 of 252 Re: Battery Drian 2007 LTZ [lastchevy]
Dec 14, 2009 (8:32 am)
My battery drained 3 times using my iPod. Each time I needed a jump. The dealer checked out and found a fuse that was blown (they said from a bad jump), but didn't find out why the battery drained. Their advice was to not run the iPod with the car off. They told me all batteries would drain (after 20 minutes????). Was interested to find this site with others having the same issues. Called GM, have a case # pending, and I'm suppose to wait for it to happen again before I bring it to the dealer. Why can't the dealer do the diagnostics? What is the difference if I drain, jump and take in for correction? I don't think it's right that we have to accept this, but not sure how to escalate to get it corrected. Any one have a good dealer in the Chicagoland area?
#10 of 252 07 Tahoe Dead Battery- My 2 cents.
Jan 13, 2010 (6:25 am)
I like many other unsatisfied GM owners bought a new Tahoe back in 2007. The battery now goes dead about once a month and I make sure nothing is left on.
I checked out a friends Chevy pickup for the same problem and found when I put my meter on the battery the charge rate was good. Good amps and volts. I then checked the diodes with the same meter and found the diodes were shorted inside the alternator even though it was charging well.
Once the alternator was replaced he had no more problems. The shorted diodes were draining the battery.
I called the Chevy dealer where I purchase my vehicle new and they were certain the battery was dead and that would not be covered under warranty. They didn't even check it out, they just condemned the battery over the phone.
GM must know what’s going on but do not want to pay for a recall!
I will most likely change out my alternator myself.
#11 of 252 Re: 07 Tahoe Dead Battery- My 2 cents. [gary5265]
Jan 13, 2010 (6:46 am)
So this vehicle sits not used, and after a month the battery is dead?
Or you use this vehicle all the time, and mysteriously once a month the diodes short out and drain the battery down?
Are you still signed up for the GM vehicle once a month call home function?
I have an 07 LTZ, which is used primarily for long distance travel (like vacations) or 6+ people hauling, so it sits unused a lot. I (knock on wood), have not had any issues with the battery going dead.
#12 of 252 Re: 07 Tahoe Dead Battery- My 2 cents. [kiawah]
Jan 13, 2010 (9:17 am)
I drive my Tahoe every day without fail. About once a month when I go out to start it the battery is so dead it won't even unlock the doors.
I know without a dought that I do not leave anything on.
The wipers have never worked properly and the transmition has been replaced.
#13 of 252 Re: 07 Tahoe Dead Battery- My 2 cents. [gary5265]
Jan 13, 2010 (9:26 am)
Check to see if it fails, coincidentally the same date the vehicle 'calls home' to GM.
#14 of 252 Re: 07 Tahoe Dead Battery- My 2 cents. [kiawah]
Jan 13, 2010 (9:42 am)
If I don't subscribe to the program you mentioned will my vehicle still "call home"? I don't use the OnStar or get updates of the vehicle health.
#15 of 252 Re: Battery Drian 2007 LTZ [michele33]
Jan 13, 2010 (10:04 am)
I'm suppose to wait for it to happen again before I bring it to the dealer.
If the battery drains after only 20 minutes then take your car to the dealer, park it in a convenient place (like right in front of the showroom door), turn the engine off and run your iPod. 20 minutes later you can tell them it happened again.
SUVs and Smart Shopper
#16 of 252 Re: 07 Tahoe Dead Battery- My 2 cents. [gary5265]
Jan 13, 2010 (4:22 pm)
I don't know, I unsubscribed to it.
Just trying to think of some intermittent thing that could be coming on (or staying on).
- if it calls home
- air leveling pump
- heated seats
- turn in mirrors
- auto tailgate close
I'd be pulling fuses, or taking care to go thru the same sequence of turning things off, looking for something out of oridinary.
#17 of 252 Re: Battery Drian 2007 LTZ [tidester]
Jan 20, 2010 (1:51 pm)
LOL! PERFECT IDEA! Thank you tidester!