This morning I took the car back to the mechanic to solve the Light on problem and something strange happened that left me more worried. As he pulled in the car into the garage bay the car lost power going fwd and the arrow for winter drive on the instrument panel started flashing. As if the car was stuck in 3rd gear(car has automatic transmission). Read the codes on scanner: besides original code there were two new ones related to transmission. Unplugged battery/clear codes and car regained power and arrow light stopped flashing. Drove the car around everything back to normal but Check Engine Light still on. Read code and now there is only one (pending code) but Drescription Unavailable. Told me to drive around to see if code(s) come back....I'm thinking of looking for another mechanic but I'm afraid he wion't be able to do anything if he can't read the code to give reason for CEL on... Dont know what to do...