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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #1  
Old 11-10-2010, 02:49 AM
liquid0 liquid0 is offline
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Default Re: service 4WD

I had exact same issue and ended up having the dealer fix it. Ended up being the switch as well. At first it was intermittent but then the light on my dash kept going out and and after trying all the suggestions, I took it in and they replaced the switch. I think it was ~$350
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Old 11-29-2010, 07:50 PM
Poppabear_093 Poppabear_093 is offline
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Default Re: service 4WD

Thanks, That was it!
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  #3  
Old 12-11-2010, 04:40 PM
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Default Re: service 4WD

'05 with 84,606 miles...Service 4WD popped up yesterday. Goes into 4HI and 4LO fine.

Dropped it off at the dealer last night...will post back later today when I get the results.
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Old 12-12-2010, 12:33 AM
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Default Re: service 4WD

Quote:
Originally Posted by guruerror
'05 with 84,606 miles...Service 4WD popped up yesterday. Goes into 4HI and 4LO fine.

Dropped it off at the dealer last night...will post back later today when I get the results.
Dealer 'traced out 4 wheel drive circuit' and 'found internal open in 4 wheel drive mode switch'

$150.28 for new switch and I'll do the install tomorrow...should fix it all up.
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Old 12-12-2010, 10:59 PM
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guruerror guruerror is offline
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Default Re: service 4WD

Quote:
Originally Posted by guruerror
Dealer 'traced out 4 wheel drive circuit' and 'found internal open in 4 wheel drive mode switch'

$150.28 for new switch and I'll do the install tomorrow...should fix it all up.
That fixed it right up...no more Service 4WD message.
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