TSB udate

Cheap insurance.

One flash/update without issue may be ok. But I've had a .cuw update file fail multiple times about ¾ of the way through each time.

Leaving the truck in the ignition on state for a longer period of time because of a failed attempt could potentially brick the ECU if the battery drains enough (although likely recoverable, still a PITA).

 

So if I do the update myself I definitely need a battery maintainer

 

Schumacher battery tender is what I use.

 

As an alternative, you could simply hook-up some jumper cables from your battery to another (running) vehicle during the flash.

 

Get it done yet?

 

[QUOTE="Dank Donkeh Luvver, post: 25281290, member

If you're nervous, ask your dealer to do it.[/QUOTE]

Both here in Norcal refused to do it. They acted like they’d never heard of an ecu update.

 

Both here in Norcal refused to do it. They acted like they’d never heard of an ecu update.[/QUOTE]

There are folks towards the coast that would be happy to help you. See the Feelers thread.

 

There are folks towards the coast that would be happy to help you. See the Feelers thread.[/QUOTE]

Oh yeah Chan offered to do it with the tune I just wanted the dealer to take care of it in case the ECU gets potato'd.

 

Oh yeah Chan offered to do it with the tune I just wanted the dealer to take care of it in case the ECU gets potato'd.[/QUOTE]

It is very hit or miss at dealers. There are folks that will help you for free.

 

So I called my dealer and there person I spoke with had no idea what I was talking about when I explained the driveability issues and that I want to be updated from 04B31 to 04B33. All she kept saying is that they don’t show anything in their database. I asked to speak to the service manager but never heard back. I have techstream installed as well as the VF tune Software. I also have my tune pack downloaded. My battery maintainer shows up today. I am so tempted to just do it myself even though I’ve never done anything like it. I’m still worried about softbricking my ECU. I assume if the techstream has the days countdown it’s unlocked and ready?

 

Put the battery tender on it and just do it yourself. Sounds like you're all set up and good to go.

 

I had the update done yesterday. Here's a photo of the description from the Toyota dealer if this helps any of you.
On the drive home, the truck drove so much better.

 

Do you have manual transmission

 

Mine is automatic

 

Well my vin is included in the T-SB-0092-20 so hopefully once I talk to the right person they will do the update without any problems. If not I am just going to do it myself. I definitely have poor acceleration and weird gear changes and hunting. I think I’ve almost gotten used to it since it’s been almost 2 years. I did a catback and CAI but that just made it feel more sluggish so I took them off

 

Just do it yourself. It’ll take you five minutes and you’ll wonder why you waited so long. The process is the same whether you do it or the dealer does it.

Afterwards, take it for a nice drive so you can see how much better it is.

Then OV tune it and NEVER look back.

 

Yea your probably right. As soon as my battery maintainer gets here I’ll do it. Thanks for all your input

 

The funny thing is, I hooked up my battery charger to do the TSB update. But I never hooked it up to do any OV flashes.

If you were in the NNJ area, I’d help you out. It’s not even a big deal. Just nerve wracking because it’s a new experience.

 

Nice. Yes it’s nerve racking with the thought of soft bricking my ECU but I’m just overthinking it. I just need to do it.

 

When in Rome…