Speedometer correction

[Madadder]

@Flipped Bezel
I should have updated my post since three years ago. I tried this and it didn’t work for me. I now have a Yellow Box and it’s working great for the past 20k miles.

Noted.
Wonder why it didn't work?

 

[Flipped Bezel]

@Flipped Bezel
I should have updated my post since three years ago. I tried this and it didn’t work for me. I now have a Yellow Box and it’s working great for the past 20k miles.

I too was unable to get my LX recalibrated this way after a few attempts...thanks @SlowBuild for circling back and posting your results.

 

[jLB]

Noted.
Wonder why it didn't work?

Because that "calibration" is intended for the navigation system's internal use, not for adjusting the speedometer display on the dash?

Is there a way to correct speedometer after bigger tires

just as the title says. I searched, albeit, briefly and didn't have luck. Can you adjust the speedometer after you go bigger on tires?

forum.ih8mud.com

 

[audioviking]

Where is the unit connected? under the dash?

 

[DuckLN]

I tried yo tell ya

 

[jmthomas83]

I tried yo tell ya

About to do lift and 285s and planning to recalibrate. Any more feedback on the Lutz? Their site makes it very clear how it installs.

Does the YellowBox plug and play install the same way? It seems to be tried and true but currently has 3-5 week shipping delays.

 

[NickPsy]

Hopefully someone else who has the Lutz box will weigh in as I seem to be the only one to review it. It was an easy install including the calibration and is still working perfectly.

 

[jmthomas83]

Hopefully someone else who has the Lutz box will weigh in as I seem to be the only one to review it. It was an easy install including the calibration and is still working perfectly.

Nick, thanks for your reply! I had completely missed the link to your detailed review. Just went and read and its pretty compelling. Lutz is running a sale right now so I’m going to give it a shot!

 

[blinder52]

Whats your definition of a larger tires? On my 2004 LX, I have 38x15.50 which is probably one of the biggest tires I have seen on a LX or I think only one has a 40" tires on a 100 series Landcruiser. I was able to calibrate my speedometer/GPS using the built in calibration within the factory Lexus navigation system. I don't care how it got calibrated but somehow both my speedometer and GPS were successfully calibrated. With my large tires my speedometer is right on with "this is your speed" radar based check, I also used my wife car to pace me at the same speed to check, as well as my now new navigation (pioneer avic 8200) GPS based speed and my phone GPS or cell tower location based speed. All I'm saying is if you have a factory Lexus navigation system, give it a shot before you spend your money. Somebody in this community have posted the same question and after long discussions he was able to calibrate and got similar result as mine even though he only have ~33" tires.

Here is the other discussion:

Is there a way to correct speedometer after bigger tires

Ditto

 

[Kileni]

I was able to calibrate my speedometer/GPS using the built in calibration within the factory Lexus navigation system.

Can you point me to directions for that, please? Thank you.

 

[blinder52]

I recall it being in the Navigation owners manual.

 

[LX470Beast]

Can you point me to directions for that, please? Thank you.

Sorry, nav delete 2017 ish.

 

[jLB]

Can you point me to directions for that, please? Thank you.

The owner’s manual pages related to this are posted at:

Is there a way to correct speedometer after bigger tires

just as the title says. I searched, albeit, briefly and didn't have luck. Can you adjust the speedometer after you go bigger on tires?

forum.ih8mud.com

Although it did not seem to work for me.

 

[blinder52]

I think the idea was to adjust for tire wear. Weather is does so for a major diameter change IDK. Interesting idea to use GPS to compare distance and speed.

 

[Kileni]

It took me a minute to find @NickPsy 's (Thank you!) notes on the Lutz. For others that might intrigue, too, here are the two main links, I think:

Where to buy - Landcruiser 80/100/105 & LX450/LX470 Speedometer Calibrator/Correction Device | Lutz Auto - https://www.lutzauto.com/product-page/80-series-landcruiser-lx450-speedometer-calibrator
How to install - Installing Lutz Auto Speedometer Calibrator/Correction Device - https://forum.ih8mud.com/threads/installing-lutz-auto-speedometer-calibrator-correction-device.1221458/#post-13650571