I had a diagnostic test ($146) done on the gearing/transmission on my 06 auto corolla. (fyi..no check light, no leaking). the problem I have every once in awhile, when I shift into reverse, the gear doesn't engage, it doesn't roll backward, I either have to shift back into park, turn off engine, restart and put into reverse..sometimes it worx, sometime it doesn't. another way is to step on the gas, doing so, it feels like the e.brake is on, there's certain restriction and knowing it can't be good. after a short distance, I put into back into park, then into reverse..sometimes it worx, sometimes it doesn't. (fyi..revving the engine, before I start any process, worx sometimes, sometimes it doesnt) the true professionals these guys are, were not able to find the problem, it's unfortunate, but.. *the good thing is, my transmission and gearing is good!! *the bad thing is, besides, the problems is still there, I have to wait until a engine check light appears to find out the exact problem, IF, that's related to this "reverse" problem :( I got a little sidetracked (?) but I had to let you know the unique problem I have. Services: General repairs & maintenance, Transmission