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new 2007 Tahoe LTZ

13 messages,  Last post on Sep 03, 2008 at 11:55 AM

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#1 of 13 new 2007 Tahoe LTZ by tatung70 Nov 21, 2006 (9:59 am)
Just got home last night with my 07 Tahoe LTZ.   Had it in the garage off, ut the key in and turned so the electronics (radio, gps) would work.   After abotu 20 minutes, I tried to start it and it did not start. I saw there was a message stating service battery - charging battery. Never started that night. The next am it did start.   1st, that seems like not a lot of battery to power things for only 20 minutes. 2nd - where is it charging the battery from?   Also, I see there seems to be a place for a 2nd battery in the front - right side. Is this an option I can add and is it recommened?   Finally - as a note - the Tahoe is just about always makign some kind of noise even when powered off. Any ideas? Replies to this message: bk777 (Nov 21, 2006 2:37 pm) socaltahoe (Jan 15, 2007 11:46 am) marvk (Mar 23, 2007 6:45 am) littlecreek (Jan 25, 2007 11:24 am) rockman59 (Jan 25, 2007 7:41 pm)
#2 of 13 Re: new 2007 Tahoe LTZ [tatung70] by bk777 Nov 21, 2006 (2:37 pm)
Replying to: tatung70 (Nov 21, 2006 9:59 am) tatung70 says:   Finally - as a note - the Tahoe is just about always makign some kind of noise even when powered off. Any ideas?   Yes, if the noise is a ticking sound...run like he_ _!   Seriously, the fuel pump can run after key-off...to pressurize the fuel system. The fan is thermostatic...and can also run after key-off...that's why they put the little warning sticker near the engine fan.
#3 of 13 Heated seats and radio question- LTZ by sheltiepup Nov 21, 2006 (7:33 pm)
Is there a way to progam the heated seats to permanently stay on? I would like it to come on when I use the remote start- but cant figure out how to do it?   Also is there a way to use the steering wheel controls to get to your "favorites" without having to press favorites to scan the 35 radio channels?
#4 of 13 Re: new 2007 Tahoe LTZ [tatung70] by socaltahoe Jan 15, 2007 (11:46 am)
Replying to: tatung70 (Nov 21, 2006 9:59 am) Tatung70 - I just got home with my 07 Tahoe and the same thing is happening to me. 20 minutes, toying with the nav system in the driveway with the ignition off, will not start. It is at the dealer right now and they are saying the battery is up to specification. I am wondering if the AC Delco battery is faulty or if the system is truly using enough of the power from the battery to not start it and the AC Delco is just unable to handle the load.   Are you still seeing this problem?? Replies to this message: marvk (Mar 23, 2007 6:45 am)
#5 of 13 Re: new 2007 Tahoe LTZ [tatung70] by littlecreek Jan 25, 2007 (11:24 am)
Replying to: tatung70 (Nov 21, 2006 9:59 am) There’s been a number of electrical quirk posts…I’ll add ALL of mine in the event that any of it helps.   Mine is at the dealership right now and has been for the last 4 days. I took it in because when I engaged the four wheel drive for the first time during a snow storm a warning message came up saying “four wheel drive needs service”. The light on the dial would flash even though the four wheel drive would engage. Light is supposed to NOT flash when it’s engaged.   LSO…for some reason there are times when the suspension rides like your on an old wagon with no springs at all. My brother-in-law had his new 07 do the same thing but it wasn’t intermittent and the dealer said his shocks were in the “locked” position. His has worked fine since then. Mine…comes and goes…not when I’m at the dealership though.   Also…about a month ago while vacuuming it out, the back doors locked all of a sudden by themselves and pushing the button upfront wouldn’t open them…had to do it manually. Then the next morning, even though it had been driven after the cleaning, the battery was dead. I reported this to the dealer and they said they hadn’t seen any bulletins on it.   Also…three times while the keys were in the ignition with the vehicle off…the doors have locked me out. Twice OnStar was able to open it. One time they couldn’t and had to send a locksmith.   Sooooo…today the dealership tells me that they found a bulletin that describes the back doors locking and not being able to get them unlocked with the front button and the battery draining. Apparnetly this has something to do with a specific fuse issue that will require the entire fuse box be replaced. They also told me that there is another bulletin that says after market window tinting is the cause of the doors locking with the key in the ignition. Guess I’ll keep the keys in my pocket. Nothing from them yet on the suspension. Replies to this message: rockman59 (Jan 25, 2007 7:41 pm)
#6 of 13 Re: new 2007 Tahoe LTZ [littlecreek] by rockman59 Jan 25, 2007 (7:41 pm)
Replying to: littlecreek (Jan 25, 2007 11:24 am) They also told me that there is another bulletin that says after market window tinting is the cause of the doors locking with the key in the ignition ____________________________________________________________ Can anyone explain how after market window tinting can effect the locking system?
#7 of 13 Re: new 2007 Tahoe LTZ [socaltahoe] by marvk Mar 23, 2007 (6:45 am)
Replying to: socaltahoe (Jan 15, 2007 11:46 am) They had mine for 4 weeks and finally figured out that the Onstar module was bad. Onstar could not locate the vehicle so it constantly kept trying and after a few tries it triggered the main ECM and that killed the battery.
#8 of 13 Suburban doors lock by themselves by ptownbubba Sep 03, 2008 (9:31 am)
Our 07 Burb locked it's doors the other day, we got out at a friend's house, left the keys in ignition,, and after a few hours, the doors were all locked. It has never done this while parked in the garage all night, without the keys in ignition,, could it be Onstar detects keys in ignition,,, and does it it to protect vehicle form crooks ? Replies to this message: kiawah (Sep 03, 2008 10:10 am)
#9 of 13 Re: Suburban doors lock by themselves [ptownbubba] by kiawah Sep 03, 2008 (10:10 am)
Replying to: ptownbubba (Sep 03, 2008 9:31 am) The vehicle has a BCM (Body Control Module), which is a computer that manages doors/windows/lights/locks/etc. Nothing really to do with whether you have OnStar or not.   I didn't realize it would do that under the circumstances of leaving the keys in the ignition (since I never leave keys in the ignition), but seems totally reasonable. Most newer vehicles will lock the doors automatically after a short period of time, after it receives an 'unlock' command from the key-fob, followed by 'not' detecting a door opening.
#10 of 13 by ptownbubba Sep 03, 2008 (10:25 am)
So,,,,, probably nothing wrong,,, just better not leave keys in vehicle,,,, the BCM must get nervous seeing those keys hangin' there, and the owner not around. Sort of a "pain" when you live in the sticks where keys in vehicles is pretty common.   Thanks for the reply,,,,   greg Replies to this message: kiawah (Sep 03, 2008 10:30 am)

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