Question about 2001 Pontiac Aztek

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Car radio volume control knob is erratic

My wife's 2001 Pontiac Aztek has the factory radio. The volume control is a knob (not buttons or slider). It's becoming increasingly erratic; you turn the knob down, and the volume goes up, or sometimes doesn't change at all. I've found that if you turn the knob very, very slowly, it usually mostly works, but can still take a long time to actually change.
I've tried taking the knob off and using one of those spray cans of air to try to clean it, but no good. Is there any way that this is user-fixable, or should we just buy a whole new radio?

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  • Anonymous Jan 11, 2009

    I have this problem with my 1996 Mercedes.

  • Anonymous May 10, 2009

    I have the same problem on my 1997 Infiniti I-30 which has a Bose radio.

  • bill Fischer
    bill Fischer Dec 09, 2013

    I had the same problem on my 1999 pathfinder with BOSE radio. I opened up the digital encoder, by unbending the little tabs, Cleaned the contacts with alcohol, Put it back together, It's as good as new. Good luck with yours


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When I turn on my radio, the volume is on and o.k. but when I try to turn it higher or lower the volume is lost completely. Any comments?

Posted on Apr 12, 2010

  • billprice80 Jun 28, 2011

    How is this a solution? Why is anyone voting this as a good solution?

  • bill Fischer
    bill Fischer Dec 09, 2013

    I had the same problem on my 1999 pathfinder with bose radio. I opened up the digital encoder, cleaned the contacts with alcohol. Works like new


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This is a common problem for this series of Pontiac radios. The volume control is a digital encoder rather than a variable resistor. There are services that will repair this for $50 to $100. Do a web search on "fix pontiac radio volume control".

Posted on Aug 01, 2008

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