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Impala While undergoing many facelifts in its history, the Impala has proved itself to both civilians and police forces as one of the most capable 4-door cars GM has ever offered. Currently moving towards its 10th generation the Impala is one of the longest lasting and popular models.

2014 Chevrolet Impala
Includes: Bel-air
Platform: B-body & W-body

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  #1  
Old 03-19-2011, 04:53 AM
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Join Date: Mar 2011
Location: Port Jervis NY
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tsicuro
Default Onstar backup battery replacement

Have a dead onstar backup battery and want to have it replaced. Anyone know where to purchase?? Also procedures to replace it and approx cost
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  #2  
Old 03-19-2011, 06:33 PM
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Check with local service departments? The part lists for ~$93. Labor? It'll probably take longer to look up the procedure. See article OnStar Backup Battery - GM Techlink for how it may have happened.
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Old 03-24-2011, 12:48 PM
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GMLouisFischer
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twodogs47, have you been able to resolve this issue yet?

Jeff Morris, Chevrolet Customer Service
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  #4  
Old 03-25-2011, 08:10 PM
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2008 Chevrolet Impala
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The Onstar unit is in the trunk, on the driver's side. Pull the trunk lining carpet away from the side of the trunk, and you will see it. The back-up battery is mounted on the side of the unit with a special bracket. Follow the instructions on the tech sheet listed above to avoid the check-engine light becoming lit. The battery is the "Ultralife" brand and has a GM part number of 88861186. Cost is 54.04 from www.gmpartsdirect.com. Follow the instructions in the GM tech sheet listed above and do it yourself. Save the labor cost. I hope this helped!!
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Old 04-01-2011, 06:12 PM
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2008 Chevrolet Impala
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Got my new battery today, and had it installed in 10 minutes. No sweat!
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  #6  
Old 09-29-2011, 08:44 AM
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2007 Chevrolet Tahoe
 
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Location: Austin, Texas
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My 2, if you are paying for On-Star the least they could do is provide you the battery at no cost.....Call them and tell them the battery is bad so you are canceling your subscription.....
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Old 01-18-2012, 07:32 AM
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tsicuro
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Still working on it. have sent some emails to GM dealers with no response yet.
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Old 01-18-2012, 08:06 AM
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Quote:
Originally Posted by DavidS1206 View Post
The Onstar unit is in the trunk, on the driver's side. Pull the trunk lining carpet away from the side of the trunk, and you will see it. The back-up battery is mounted on the side of the unit with a special bracket. Follow the instructions on the tech sheet listed above to avoid the check-engine light becoming lit. The battery is the "Ultralife" brand and has a GM part number of 88861186. Cost is 54.04 from www.gmpartsdirect.com. Follow the instructions in the GM tech sheet listed above and do it yourself. Save the labor cost. I hope this helped!!
Thanks sounds simple enough.
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  #9  
Old 01-26-2012, 05:59 PM
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2dogs Have you found a battery yet? If not I have one I removed from my vehicle. If its the same your welcome to it.
Rod
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  #10  
Old 01-28-2012, 11:34 AM
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tsicuro
Default Thanks Rods

Just received the BUB will install it soon. Thx again for the offer.
Lifted072dogs Have you found a battery yet? If not I have one I removed from my vehicle. If its the same your welcome to it.
Lifted072dogs Have you found a battery yet? If not I have one I removed from my vehicle. If its the same your welcome to it.
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Old 01-28-2012, 11:34 AM
 
 
 
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06, 2008, add, back, backup, batery, battery, chevy, cost, impala, mylink, onstar, replace, replacement, replacment


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