Have Toyota Questions? Ask a Mechanic for Answers ASAP
Do you still need help? How many miles are on the car? Do you have the small radio number off of the unit.
Remove the positive and negative battery cable isolate them from the battery then take a jumper wire in place across the two ends of the battery cables. Let set for about five minutes and remove the jumper wire and reinstall the battery cables see if the radio will power on at that point if it does go into the settings and general tab go down to software update and let me know what the software ID number is.
We still need to do a hard reset on the system follow the directions on the battery disconnect let me know how that goes make sure the battery is fully charged. We need to get the radio to restart. Can you shoot me a picture of the front display of the radio.
Yes that is correct. This will drain all the capacitors and memories in all of the onboard systems. It essentially is considered a hard reset. After about five or 10 minutes and then remove the jumper wire and connect the battery cables backup see if the radio will then respond and allow you go through the menu system.
The radio has a backup that does not allow the radio stations to be zeroed out if the power supply is removed. This does not mean the memory is far as the random-access memory in the computers will clear. If it is at least turning on then randomly doing goofy things you will need the software update done by the dealer. 90% of the time it will resolve most of the problems you are having. If that does not do it the unit will have to be replaced.