Battery Replacement - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 General Tech Q&A > General

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  #1  
Old 03-20-2010, 03:35 PM
jesse_ac jesse_ac is offline
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2005 Chevy TrailBlazer LS EXT
Summit White 4.2L I6 4X4
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Battery Replacement

Do I need to reset any features if and when I replace the battery? (2005 TB EXT LS)

I have not done it yet. I am concerned that the alarm, or security system on the vehicle will need to be reset if I disconnect the old battery when I remove it for replacement. I ask because on an older Tahoe I clearly remember that disconnecting the battery caused the alarm and security to reset....it was a blast...literally..when I reconnected it.

Thanks,

Jesse
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  #2  
Old 03-20-2010, 03:39 PM
WOOLUF1952 WOOLUF1952 is offline
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2003 GMC Envoy SLT
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I'm not sure about the alarm, but make sure everything is turned OFF (radio, HVAC) before disconnecting the battery.
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  #3  
Old 03-20-2010, 05:03 PM
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Chickenhawk Chickenhawk is offline
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Yup, put all HVAC controls all the way to the left or off, depending on your setup. When you connect power, the HVAC door actuators will move the full length of their travel in order to seek the proper positions. (This is why there is a higher likelihood of door actuator failures - the doors move farther than normal and if they are marginal, that is the time they will fail.)

You won't need to reset anything except the clock. Your radio won't even lose its presets.
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Old 03-20-2010, 05:23 PM
jesse_ac jesse_ac is offline
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Thanks for the advice and tips. I'll make sure all systems, including HVAC, are off. I'm off to COSTCO for the battery.
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  #5  
Old 09-25-2010, 11:43 AM
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06Trailman 06Trailman is offline
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My battery needs to be replaced soon. From what i understood from other threads, failures of actuator modes only happens when you have auto temp TB or does this apply also on manual temps? I have an 06 TB LS and wondering if i will come across the same problem?
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  #6  
Old 09-25-2010, 06:10 PM
WOOLUF1952 WOOLUF1952 is offline
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Quote:
Originally Posted by 06Trailman View Post
My battery needs to be replaced soon. From what i understood from other threads, failures of actuator modes only happens when you have auto temp TB or does this apply also on manual temps? I have an 06 TB LS and wondering if i will come across the same problem?

IMHO, don't tempt fate. Just turn everything off.
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  #7  
Old 09-25-2010, 06:14 PM
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reepks reepks is offline
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I just replaced my batter a couple weeks ago. I didn't have any problems, The only thing I had to reset was my clock! Even the radio remembered my presets.
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  #8  
Old 10-06-2010, 06:06 PM
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hawkhuff hawkhuff is offline
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I replaced my battery yesterday with no issues. I turned everything off as recommended and I only had to re-set my clock.

I do have a question however. Will the oil change sensor re-set when the battery is changed out?
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  #9  
Old 10-06-2010, 08:03 PM
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Chickenhawk Chickenhawk is offline
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No, as far as I know, the oil life interval is remembered by a non-volatile part of the memory of the PCM.

(Which brings up an interesting point that another member once brought up but we didn't discuss much - when one gets another PCM, with say a core program tune for example, you must then get the oil life that was 'burned in' to the memory of the previous owner. If this is so, then with a PCM change, one should note their oil life if possible and watch their mileage!)
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  #10  
Old 10-06-2010, 08:06 PM
skoehlke skoehlke is offline
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Battery Replacement

Another thing you may want to consider is to clean your Throttle Body while you are replacing the battery. Over time the system compensates for the dirty TB.

The result of the dirty tb is stalling at idle when the AC is on.

You can do a search on here and find a how to. If you are semi mechanically inclined, you can do the project. It only took me about 30-45 minutes to complete it.
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