Firmware update for 6spd Gearbox

[120D4D Avid PP Poster! Find all posts View Profile Close 120D4D]

I actually thought the same thing about the ESC specifically and have begun some testing to see if I can replicate it with the ESC disabled. So far I haven't been able to, but it is only early days..

Disabled as in turned off via the switch?, or are you pulling a fuse?

I will start testing with the ESC turned off via the switch as I think I can replicate it most times I change up from 3rd to 4th on one specific corner.

[Lski Member Find all posts View Profile Close Lski]

Disabled as in turned off via the switch?, or are you pulling a fuse?

I will start testing with the ESC turned off via the switch as I think I can replicate it most times I change up from 3rd to 4th on one specific corner.

Just by turning off via the switch.

[Wildfire Lurker Find all posts View Profile Close Wildfire]

LSKI you describe the exact issue I have and I can regularly make mine do the cough/misfire on a certain motorway on-ramp. I'll have to try your theory as well.

[RB80 Junior Member Find all posts View Profile Close RB80]

120D4D - Yes mate, 2in.

[MDS69 Advanced Member Find all posts View Profile Close MDS69]

Is anyone experiencing excessive engine braking down hill. Not my car but my boss has a 150 and is saying he is getting excessive engine braking on anything from 110km/h on the freeway where he is going downhill and lifts of the throttle and it it like it is changing back to fourth, think Mooney Mooney on the F3 freeway in NSW to travelling at 60km/h and does the same on Victoria Rd through Top Ryde heading west. It is going in the 10k service next week and he is going to raise it with the dealer but wants to be armed with some info first.

[hergy Junior Member Find all posts View Profile Close hergy]

yes my Kakadu does this, altough it does not bother me

Is anyone experiencing excessive engine braking down hill. Not my car but my boss has a 150 and is saying he is getting excessive engine braking on anything from 110km/h on the freeway where he is going downhill and lifts of the throttle and it it like it is changing back to fourth, think Mooney Mooney on the F3 freeway in NSW to travelling at 60km/h and does the same on Victoria Rd through Top Ryde heading west. It is going in the 10k service next week and he is going to raise it with the dealer but wants to be armed with some info first.

[5logs Junior Member Find all posts View Profile Close 5logs]

My 2016 GXL does. Annoyed me a bit to start with but you get used to it..

Is anyone experiencing excessive engine braking down hill. Not my car but my boss has a 150 and is saying he is getting excessive engine braking on anything from 110km/h on the freeway where he is going downhill and lifts of the throttle and it it like it is changing back to fourth, think Mooney Mooney on the F3 freeway in NSW to travelling at 60km/h and does the same on Victoria Rd through Top Ryde heading west. It is going in the 10k service next week and he is going to raise it with the dealer but wants to be armed with some info first.

[Prado ferret Lurker Find all posts View Profile Close Prado ferret]

hi Cuda. can you tell me what Toyota service department knows about the firmware update that you got, please?
no one up here near Brisbane does not know anything about it. thank you for any info.

[GeeWhizz Senior Member Find all posts View Profile Close GeeWhizz]

hi Cuda. can you tell me what Toyota service department knows about the firmware update that you got, please?
no one up here near Brisbane does not know anything about it. thank you for any info.

The original discussion was in 2016, when the 6-speed box was new. More recent models, and any earlier Prado that has had the DPF software update (like mine), would have has the ECU updated. I think that your only option, if you are bothered by the torque converter is not locking up in sixth, is to hold the gearbox back in 5th with the 'S' mode.

[Prado ferret Lurker Find all posts View Profile Close Prado ferret]

hi geewhizz.
I have a 2016 Prado, and what I have been told that my Prado has had the update for the dpf done, the Prado still has a problem with the 6th gear not locking up, and if it does you will need to be on a flat bit of road at lease going slightly downhill and it will go into 6th and lock up, but as soon as you poot the foot down slightly it's out of 6th or start going uphill ever so slightly it's out of 6th gear, any ideas thanks.

[Piggy Water pistol pilot. Find all posts View Profile Close Piggy]

hi geewhizz.
I have a 2016 Prado, and what I have been told that my Prado has had the update for the dpf done, the Prado still has a problem with the 6th gear not locking up, and if it does you will need to be on a flat bit of road at lease going slightly downhill and it will go into 6th and lock up, but as soon as you poot the foot down slightly it's out of 6th or start going uphill ever so slightly it's out of 6th gear, any ideas thanks.

Use S mode and push it forward to 6th twice or hold it forward for a few seconds. (If thats the + way) It should drop into 6th earlier. They are known for unlocking at any throttle, but this helps a bit. Apart from that, a trans re-tune or have a stocklock torque converter lockup fitted. will help it to lock earlier.