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Old 04-20-2010, 05:50 AM   #9
Nipple boy
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Joined: Sep 2003
Location: Sydney, Australia
Oddometer: 4,104
Most of the GPSmap 276C are now experiencing this problem. It was supposed to be fixed in later models.

As others have said the internal battery that powers the clock is faulty. Get it replaced under warranty.
Most likely the GPS will be replaced (not repaired).
Make sure unlock codes for any map products you have purchased are transferred to the new unit. Only Garmin can do this.
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