Wrench light goes on on 2008 Mercury Sable

Two separate times while we were traveling up steep hills in the heat, the little wrench light has gone on. When going down hill it goes back off, and it has not come on since. The car seems to be running great. Do I have a problem, and if so how big?

by in Butte, MT on August 06, 2010
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1 answer 1 comment
ANSWER by , August 07, 2010
See what the light means it is in the instrumentation section of your owners manual.
COMMENT by , August 08, 2010
It says it has something to do with the transmission.