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Q:

Front heated seats work and then they dont. Is there a relay. on 2005 Hummer H2

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front switch lights come on momentary and then shut off. Then all of a sudden they work.Getting cold can someone help.
(1) Answer
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Likely you have a seat heat element that is shorting out. Control module may be seeing too much resitance and shuting system down. Compatible scan tool can check that system for fault codes.