Thread: A/C and rear defrost button problem

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  1. #1 A/C and rear defrost button problem 
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    Figured this would be a rather simple fix so put it in this section...

    2004 Pontiac Grand Prix GT1

    My A/C and rear defrost buttons only occasionally work when I press them. It is almost as if the contact to the switch behind the button is not being made. So I press and press from different angles and eventually it (A/C or rear defrost) will kick on and work just fine. The same when I want to turn the A/C or rear defrost off. The recirculate button works just fine (I assume from little use).

    Any thoughts on how to fix this? Will I need to take the entire panel off? Any idea on a part to replace the buttons and a guide?

    Thank you!
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  2. #2 Re: A/C and rear defrost button problem 
    Moderator dsmuts's Avatar
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    Mine works fine. You may need to replace the whole hvac control unit
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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