Shift Light
Thread Starter
Heel & Toe
Joined: Nov 2009
Posts: 19
Likes: 0
Shift Light
I'm posting this for my dad. He has a 1990 Vette. It’s an auto trans car but the shift light is lighting up on the dash which I'm guessing that should only happen on the manual trans? Any ideas what it could be? We haven’t starting any diagnostics yet, just trying to see if we can get someone to point us to a starting point
Le Mans Master
Joined: Sep 2009
Posts: 6,313
Likes: 1,129
From: Vermilion OH
hahahaha!! I would also agree that something may be amiss. my Porsche 944 has a shift indicator light. Porsche called is CASIS or computer assisted shift indicator system. the light comes on at part throttle at a point that the ecu determines that better fuel mileage can be obtained by switching to the next highest gear. it will also come on under full acceleration near redline. at no point will it come on when the engine is revved up. The only thing I can think of would be the Corvette's shift indicator works strictly off of engine rpm's, with or without a load present.
