Question about 2005 Hummer H2

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My H2 05 Hummer was weak and will not start the engine. I tried to boost it from a running 12V battery and it drained my Hummer battery. Any advice PLEASE!

My hummer battery was drained while trying to boost it from a running truck. I think it still may have some power in it. I don't know why it drained, but I noticed that when I tried to open the hood through the internal lever, it was soft and didin't trigger the hood to open. Is there any other system that if on could drain the battery resource? Do I have to buy a new Battery? How could I boost the H2 Battery? Please HELP.

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  • Hummer Master
  • 76,682 Answers

Pull the battery out and have it load tested, sounds like the battery was on its way out to start with.

Posted on Jun 30, 2017

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Ajkill
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SOURCE: hummer h2 2003 55000 mill

Remote the battery wire from the car for 20 minutes make and plug it back this will reset the computer of the car if the light is on you need to service center and get it checked....................

Posted on Jun 08, 2008

  • 1 Answer

SOURCE: 2009 Hummer h3 won't start

My H3 didn't start this morning. I noticed something unusual about my truck when I first tried. The alarm had a weak sound when it went off. The fact that it turned over but didn't start made me believe it was not the battery. I was trying to call the mechanic and a wrecker to get my H3 fixed. However, before that I got the wrecker out there, I went to Autozone. He told me it sounded like the battery and cold weather kills the battery. So 3 hours have passed and temperatures warmed up to a cool 56 degrees. I was going to put jumper cables but out of curiousity, I said well let me crank it and see if it was cold weather. Sure enough, it cranked right up.

Either way, I am going to take it to Autozone and have the battery checked. I can't miss another day of work due to an old battery.

Posted on Dec 29, 2008

djicenova
  • 319 Answers

SOURCE: 03 H2 HUMMER WONT START

Does your scan tool have a reset eeprom mode?

if not, try disconnecting the battery for a 30 min period, then try

Posted on Feb 27, 2009

  • 6982 Answers

SOURCE: 2004 Hummer H2 leaking water on passenger floor

never worked on a hummer but rule of the day is that there always is a drain on the firewall on the engine side. usually a small rubber hose about two inches long direced downward. Usually you can stick your finger in there and clear it out. Don't shove anything hard into it or you can punch a hole in the evaporator core.

Posted on Apr 05, 2009

goofduck
  • 490 Answers

SOURCE: Hummer H3 rear lights staying on

if it is the brake lights that are on check the brake light switch on the brake pedal

Posted on Apr 21, 2009

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1 Answer

Battery light stays on after key is removed on hummer h2


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Do you know why the battery is it not holding a charge? This is the second time this year.


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Mar 04, 2015 | Cars & Trucks

1 Answer

I boosted my hummer he with the key on,now my altornator light on,wen i take the battare cable off it dies,is the a fuse or did i burn a line to the starter?


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Oct 02, 2011 | 2006 Hummer H3

1 Answer

I boosted a 06 hummer h3,now the alternator lights on,but i had the key on when i hocked it up.when i pull the battery cables off the truck dies


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Oct 02, 2011 | 2006 Hummer H3

1 Answer

Car will start but won't stay started tried to boost battery, but would not stay running


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May 10, 2009 | 1989 Jeep Grand Wagoneer

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