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Senior Member
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Join Date: Mar 2006
Location: Near Framingham, MA
Posts: 2,674
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Senior Member
Join Date: Mar 2006
Location: Near Framingham, MA
Posts: 2,674
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That's grade logic in action, it is completely normal. As you were going downhill, the transmission downshifted. That is helpful going down long grades (particularly when towing), to save the brakes by using some engine braking to control speed.
Most all automatic transmissions have grade logic these days.
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If brute force doesn't work, you're not using enough of it.
Current: 2013 Land Cruiser
Gone: 2003 4Runner V8 Limited 4WD
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