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Date: Mon, 15 May 2000 22:38:57 -0400
From: Rob Levandowski <roblnopsamhiz.com>
Subject: Re: 9-5 Rear Seat A/C Vents Blow Hot


In article <8fl762$ta3$1nopsam.atl.mindspring.net>, <truddnopsamspring.com> wrote: >I have a '99 9-5 whose rear seat vents on the center console decided today >to begin blowing hot air with the A/C on. Feels like the vents below the >front seats are doing the same. The front vents continue to blow cold air, >however. As a Texas resident entering the summer furnace months, I wasn't >too pleased with this new development -- nor were my backseat passengers. >Anybody else had run-ins with balky rear A/C vents? I'd like some anecdotal >solutions to offer my well-meaning but hapless dealer here. Thanks! I had this problem, and my dealer applied a flash ROM update to the A/C system. I haven't had a recurrence since, but the weather hasn't settled into the middle temperatures where the problem became most noticeable. I did find that when the problem occurred, you could usually fix it by cycling through each mode of operation -- defrost, dash vents, floor vents, and the combinations thereof -- and remaining in each mode for a few seconds before changing it, then cycling the system off, waiting a few seconds, and pressing AUTO. This seemed to reset the mixer doors and reboot the A/C so it would work properly until it got confused again. It seemed most prone to the problem on moderate days (60°F - 75°F) on prolonged trips. -- Rob Levandowski roblnopsamhiz.com

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