why would my transmission shifting change? on 2000 Toyota 4Runner

When the vehicle is "cold" the gear that normally comes at 25 mph engages at around 30@2000rpm then lurches as it engages. This does not happen when the vehicle has been running, just the first time I get over 30mph in the morning or at cold start.

by in Brunswick, GA on December 07, 2013
2 answers
ANSWER by on December 07, 2013
Have you serviced the transmission lately? Could have been time several miles ago.
ANSWER by on December 07, 2013
Some manufacturers do use a later shift strategy when the engine is cold to assist the engine warming up faster. Is this something that is notably different than in the past?

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