transmission fail safe

[dubai131]

hello

there is showing on my 645 dashboad transmission fail safe then i want to the garage and they said to me you should change the gear box !! and you have a problem in the 3d and 4th and finally they said to me you must change the valve body transmission tell me what to do please ?

[Saqir]

The TRANS FAILSAFE PROG is a default setting to your auto transmission when the computer detects a transmission problem. It could be serious or it could be nothing.

The tranny stays in 3d or 4th gear only. Hence, it's very slow off the line. It is intended to allow you to crawl to a dealer for a fix.

If battery is fine or new, check the alternator if its working fine. Weak battery or dying alternator not charging enuf battery cud also do this as tranny oil is electronic oil and cant perform fully with weaker battery.

If both are fine then rush to AGMC and get proper diagnostic check to see if its gear failing on you or its valve. Its very complicated for anyone to tell without hooking upto computer system.