There’s no removable piece, the convenience pack dash is likely a different part.

My Toyota dealer lent me a 2020 Yaris Hybrid for a day when my car was slightly delayed, it had a HUD

The RPM readout on the HUD was right at the bottom of the screen, and was obscured from view with the seat at the lowest position.

If you want a HUD, I would go OBD based aftermarket.

 

There's no removable piece, the convenience pack dash is likely a different part.

My Toyota dealer lent me a 2020 Yaris Hybrid for a day when my car was slightly delayed, it had a HUD

The RPM readout on the HUD was right at the bottom of the screen, and was obscured from view with the seat at the lowest position.

If you want a HUD, I would go OBD based aftermarket.

Ah ok, that's a shame. Will have a look at OBD options. Cheers!

 

I am from Taiwan, the HUD came as standard for the Circuit Pack…..there is a projection unit on the dash….

 

I spent some time looking into this and can therefore say:

1) Replacement windscreen. The HUD cars have a special layer in the laminate that the HUD projects onto.
2) The parts, the HUD, the brackets, etc can all be purchased new.
3) The dash upper is different but not impossible to change, just costs money and involves taking most of the dash part to do.
4) Wiring, this is where I stopped, as I could not find any loose wires to suggest it's a plug and play affair. (Unlike the SatNav and heated steering wheel). That's not to say it can't be done ( wiring diagrams are available in Toyota-Tech.eu) but not something I followed through on.

 

I rang up my local dealer for a price on the HUD, I was quoted £962.41 + VAT, has to be ordered from Japan.
It's just the regular Yaris HUD used on the regular non-GR Yaris' so I'm sure given time will start appearing on eBay cheaper.

Whether any programming or config within any the ECU's is an unknown question.
My GR is going in for a service next week so I will try and ask the master tech what the initiation procedure is for a HUD replacement.

 

Not to bad…. My dealer quoted £730ish inc vat for the sat nav and £1150 all in for the heated steering wheel.

 

My Dealer quoted 1400 EUR just for the parts but i think the labour is the problem here.

 

Finally have a bit of spare time going on my hands.

I managed to find a cheap HUD for sale in AUS which including shipping to the UK worked out to be about £250, which I'm happy to take a poke at to see how far I can get with it. It will be coming with the connector too plus hopefully the trim insert for the dash.

When my circuit pack GR went in for the radar recall, they happen to have a convenience pack GR on the forecourt for sale, which I took for a test drive specifically to try the HUD out. It was a nice enough thing to have, not sure it's worth all the effort but we'll see, for £250 you can't go wrong really.

From the test drive I noticed in the instrument cluster menu there was an additional setting for turning the HUD on/off, this may be a problem if you have to reflash/recode/reprogram the cluster in any form as Toyota won't want customers messing with that due to mileage tampering.

I also hooked up TechStream on the test drive and performed a health check scan, the HUD showed up as an extra ECU, with lots of options that looked like brightness controls/position calibration etc. So I'm hoping once the HUD is hooked up to the right CAN network in my car, TechStream will simply detect its there and let me calibrate it (hopefully with an option to turn it on/off incase I can't figure out the cluster).

The bit I'm not still sure on how to tackle is the dash itself, whether I attempt to cut a section out of mine and drop the trim piece in place (which would cover the cut marks) or find a replacement dash for the HUD (only thing I can think here is I bet all HUD dashes for RHD vehicles have the premium speakers grills).

Once the HUD arrives I'll temporarily bodge splice it into the vehicle first to see if it fires up and confirm that TechStream can see it before I start ripping the dash out.

 

The HUD has finally arrived from AUS, sadly no trim insert nor connector, but hey the most expensive bit I got for "cheap".

This is the current parts list that I've put together so far (excluding wiring):
HUD Mirror x 1 = 83108-K0020
Dash Back Panel x 1 = 55313-K0020-C0
Dash HUD Insert x 1 = 55414-K0010-C0
HUD Bracket x 1 = 83107-K0021
Nut x 2 = 90178-06018
Bolt x 1 = 91673-80616

I'm pretty sure the dash back panel is the right part number (55313-K0020-C0), it is fitted to RHD GR's in South Africa that have the HUD but not the premium speakers. AFAIK that is the correct part as there's only 3 variations of that dash piece that I know of (std dash fitted to circuit pack (no HUD, std speakers), dash fitted to convenience pack (w/ HUD, w/ premium speakers), dash fitted to overseas models (w/ HUD, std speakers).
I checked with my local dealer and they can get that for £170 +VAT, expensive for what it is but meh, the bracket was also £50, still need to get a price on the HUD insert piece.

Ordered a connector for the HUD (90980-12763) from Aliexpress that also came with terminals.
Still in the process of figuring out what other terminals I need to order to connect to the correct junction boxes etc.
Wiring in general seems quite simple, 2 x power, 1 x GND, 4 x CAN pins (2 different buses).

I'm yet to try powering up on the bench but not expecting anything to power on without CAN traffic TBF, will post once I've tried, hopefully it's not been damaged in transit.
The HUD unit itself has some minor damage to one of the plastic tabs (guessing overly rough removal from vehicle) which I plan to grind out, 3D print replacement plastic bit to build back up the plastic mount and epoxy into place.. or something like that.

 

I've powered it up on the bench and it's shown some signs of life. The mirror inside does a kind of calibration movement, no display output but hopefully that will show when hooked up to CAN.
At ~13V it was pulling ~0.11A.

I've printed off everything I need from the systems diagrams on TechDoc, all connector pinouts, end to end wiring, wiring colours, junction box points. I'll follow the service instructions for removing bits of dash panel etc.

I think the next step will be try and get access to the junction boxes to verify the pins I believe I need to connect to are present on the junction box side, to confirm it's just the harness side for the wiring that I just need to focus on (and not having to mess around altering any wiring already in the vehicle).
All being well it should just be a matter of inserting some additional terminals into the already existing connectors for the various ECU's involved and junction boxes. AFAIK the HUD just talks to the combination meter (cluster) for CAN signals and the stop and start ECU for battery power and IGN state.

 

This is a great project. Keen to see how you progress with this.

I have a Rallye and like all Aus cars it has the HUD. i dont think anyone truly 'gets' how good or how much you will use the HUD unless you spend time with it. A simple test drive would have anyone thinking 'oh yeah its ok...' and just still look at the dash for speed etc. but if you own a car with one you will only really use it and rarely look at the dash.

It is good as you dont need to look away from the road and also dont need to 'find' the dash and change your focal length (or whatever the term is).

There is quite a bit of adjustment with a HUD in the GRY as has been said, with on/off, levelling, brightness and other things.

Personally driving around the city I find cars without HUD annoying now as I am fully used to the GRY with one. Its a small change to driving but a good one when you need to keep your eyes on the idiots on the roads.

 

I use the HUD all the time now, so much easier than looking at the speedo

 

Definitely, and one of the reasons I got the convenience pack.

 

So today I thought I'd take a gander at trying to find the two CAN related junction box connectors in the car (H145 and H145), they were located with relative ease at the bottom of the driver sides dash (close to the OBD port). You can see what I was looking for highlighted in the red circles below and photos.

The *22 labeled on all the wires going to the H61 (HUD connector) I thought was to signify that these wires will only be populated if the car is fitted with the HUD from factory.
However when I checked the back of H145 (white connector) and H146 (blue connector) all the wires related to the HUD were already there.. really wasn't expecting that.

I swear during my initial research (over a year ago) there were two different part numbers for the internal dash loom; one for circuit pack and a different one for convenience pack specced cars, so naturally with Toyota being Toyota I assumed that the HUD wiring wouldn't be included in the loom for the circuit pack cars.

However perhaps this is something Toyota changed at somepoint as according to the wiring diagrams on TechDoc there have been 7 line-off runs to date, which if I understand correctly means 7 production runs with some improvements in process/parts with each run. According to TechDoc my vehicle has a production date of 20/05/21 meaning AFAIK it was built as part of the 5th line-off, so perhaps in earlier vehicles the HUD wires are not populated.
The line-off dates from EWD via TechDoc are below:

After wondering where those populated wires must go.. I poked my head under the dash I noticed a familiar looking white connector dangling in a big open space under the dash.. just waiting to be connected...

So yeah AFAIK the connector is already there and ready to go, no faffing with wiring (at least in my revision of the car) needed.

Next step is to order all the parts from dealer, and tomorrow evening I may try probing the junction boxes for the CAN lines and bodge together a makeshift harness to try firing up the HUD. The existing connector in the car is buried quite deep and I don't want to take off the trim bits until the new dash and bracket has arrived from the dealer which I've been told will take over a month.

 

View attachment 37401

So today I thought I'd take a gander at trying to find the two CAN related junction box connectors in the car (H145 and H145), they were located with relative ease at the bottom of the driver sides dash (close to the OBD port). You can see what I was looking for highlighted in the red circles below and photos.

View attachment 37405
The *22 labeled on all the wires going to the H61 (HUD connector) I thought was to signify that these wires will only be populated if the car is fitted with the HUD from factory.
However when I checked the back of H145 (white connector) and H146 (blue connector) all the wires related to the HUD were already there.. really wasn't expecting that.

View attachment 37409 View attachment 37411

I swear during my initial research (over a year ago) there were two different part numbers for the internal dash loom; one for circuit pack and a different one for convenience pack specced cars, so naturally with Toyota being Toyota I assumed that the HUD wiring wouldn't be included in the loom for the circuit pack cars.

However perhaps this is something Toyota changed at somepoint as according to the wiring diagrams on TechDoc there have been 7 line-off runs to date, which if I understand correctly means 7 production runs with some improvements in process/parts with each run. According to TechDoc my vehicle has a production date of 20/05/21 meaning AFAIK it was built as part of the 5th line-off, so perhaps in earlier vehicles the HUD wires are not populated.
The line-off dates from EWD via TechDoc are below:
View attachment 37407
After wondering where those populated wires must go.. I poked my head under the dash I noticed a familiar looking white connector dangling in a big open space under the dash.. just waiting to be connected...

View attachment 37413

So yeah AFAIK the connector is already there and ready to go, no faffing with wiring (at least in my revision of the car) needed.

Next step is to order all the parts from dealer, and tomorrow evening I may try probing the junction boxes for the CAN lines and bodge together a makeshift harness to try firing up the HUD. The existing connector in the car is buried quite deep and I don't want to take off the trim bits until the new dash and bracket has arrived from the dealer which I've been told will take over a month.

Do you have full wiring screen/list with H146 ? I think my car have problem with this element or gateway

 

HUD trim parts ordered today, could take up-to a month annoyingly as there's a bit of a backlog atm apparently.

Tally so far:

• HUD ~£300 (AUS $448.49 -> ~£250 + ~£50 customs charge)
• Trim bits £337.49

 

Hooked up some probes into the back of the junction box and took a recording of the CAN traffic for the H146 connector.

Also bodge made a quick harness to allow me to connect to the HUD on the bench.

Glad to report I managed to fire up the HUD on the bench and got the display to turn on, it does require CAN traffic to fully power on the ECU as expected.

Video of the test here:

Not sure there's much more I can do now for it until the interior trim pieces arrive.

Good hunting.

 

I just checked on TechDoc and from what I can see all TMC 3-door Yaris's have the wiring for the HUD present in the wiring diagrams, which I assume means all GR Yaris's (at least RHD models destined for the UK) do actually have the wiring for the HUD fitted from factory.

 

The connectors and pins have arrived, hopefully not that I'm going to be needing them now since discovering the wiring is already in the car.

No update yet on the interior trim parts ETA.

 

Personally I don't find the HUD useful, the layout is absolutely horrible for any kind of sporty driving but its fine for cruising around, no oil temp readout and the RPM's are neigh on impossible to read, plus if you wear polarised glasses they block the HUD so you can't see it. I really hope someone some day invents a way to customise what info it shows.

It would have been so easy to make it read out (even if only in sports / track mode) RPM oil temp and water temp instead of a huge compass.

 

Not much you can do about the polarised glasses I don't think.

But with customising the HUD, not many people of here have them (at least in the UK) as most people went for the circuit pack (I assume). The more people that now choose to install them, the increased likelihood that someone manages to figure out how to better customise them.

For all we know there is additional hidden functionality in the HUD that allows for further customisation of what's displayed. It's a Panasonic unit, so likely is used in other vehicles from other OEM's, so there's likely a wider community than just GR Yaris/Toyota to check if someone hasn't already done this type of work before.

I will be able to look at this a bit more in detail once it's in the vehicle. Through reading the doc's on TechDoc there's a long list of functions the HUD supports displaying, and for functions like navigation and compass direction they are listed as optional ("if fitted"). So in my situation is it going to display a compass as my vehicle isn't fitted with navigation, what's it going to display in it's place... not sure.?

 

Trim parts have arrived and all look good/correct

I've also now bought a Nav ECU from another member on here, so ordered the parts for that too.
Once they have arrived I'll be installing both at the same time, so will be waiting to strip down the dash until then.

 

Trim parts have arrived and all look good/correct

I've also now bought a Nav ECU from another member on here, so ordered the parts for that too.
Once they have arrived I'll be installing both at the same time, so will be waiting to strip down the dash until then.

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Subscribed!

 

Loving this thread, please do keep us posted on your progress.

(and its not cos i need a HUD, I have one, I just love the fact youre doing this work and know what youre doing so its great to watch!)

 

Thank you for the vote of confidence haha

 

Well it would seem to work!

 

All parts have arrived, should be fitting everything this weekend, hopefully will try and do a video of the strip down, install and re-assembly (but no promises).

 

Managed to get it in, my oh my tight fit.

 

Dash all back together and HUD is now working

Will post more later, taking a short break after putting all the dash back in...

 

I had ordered a four-door YARIS. It is a GR package. But Toyota cancels to install the HUD to the new order. Do you think it can work with four-door YARIS too?

 

The part fitted to the GR Yaris is the same part fitted to the regular Yaris, so even if Toyota is not allowing customer to spec HUD with the car when ordering, so long as the wiring is there it will be do-able. Although not recommended as it would be even harder to fit on a regular Yaris as the dash doesn't separate into two AFAIK, it's a single piece. I was able to fit mine into the GR with just unbolting the dash and moving it a little, not actually having to remove it all if that makes sense. Good luck.