Hummer customer service

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Customer Service

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Phone: 800-732-5493

  • How to reach a live person:
    • Speak "agent" continuously until transferred. Took me 2 times.
  • Hours of Operation:
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User Reviews

23
Aug

Posted by Thuso


on 8/23/23 at 9:30AM

Hi. I am from South Africa and own a Hummer H3 2007 model. I am struggling to access parts for my vehicle and it's really unacceptable since GM or Willaims Hunt seems to be fading put parts from there books.

03
Feb

Posted by Anonymous


on 2/3/11 at 11:00AM

very helpful.

Customer Service Ratings

Based on 108 votes.

2.8

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Hummer Manuals

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Hummer customer service news
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