Altimeter issues. Reset/Calibration possible?

FlyingTexan · Dec 14, 2023

AZGrenadier said:
If it is barometric how is it showing below sea level. That would be one hell of an atmospheric pressure.

It doesn’t take much. You can see a 1k swing pretty regularly throughout the year.

AZGrenadier · Dec 14, 2023

FlyingTexan said:
It doesn’t take much. You can see a 1k swing pretty regularly throughout the year.

well, 70ft underwater would be 2 atm. I hope the barometer isn't off that much

shiv.nandak · Dec 14, 2023

trobex said:
According to mine, I live about 4 meters below sea level...

I hope you bought the raised air intake

GrumpyBastard · Dec 14, 2023

It’s really easy for a barometric altimeter to indicate “below” sea level, as it’s simply giving a measurement of the pressure deviation from the standard. In flying machines you manually adjust the setting to match the local pressures throughout a flight. This is not abnormal. So, a failure to have an accurate setting for the time and place easily results in a negative reading.

The altimeter feature is “cool”, I got it too, but I think we might be expecting a bit much out of a system that’s essentially a novelty in this application.

FlyingTexan · Dec 14, 2023

Well Houston today was 30.40 on the altimeter. I’m currently at 36,000ft and up here we use standard of 29.92. So that’s 480ft difference on gauge.

Also for people complaining about the buttons being overhead and it being a distraction….

Dermot · Dec 14, 2023

reauxheaux said:
Living in New Orleans I expect to see negative numbers, but the city isn't 70' below sea level.

Should be showing around 8-10' above sea level where it sits.

Anyone know of an issue or is this just a limitation of altimeters in vehicles that I have to live with?

I have a similar problem with the altimeter showing that I'm living 120 ft below sea level. I live approximately 500 meters from the sea on the South Coast of UK. I have my car booked in for some warranty work in January and I will add the altimeter problem to the list.

Tomdoc · Dec 14, 2023

It's definitely working ok on mine and after the s/w update so are the pitch and yaw readings. I always thought the elevation was done using GPS?

rovie · Dec 14, 2023

FlyingTexan said:
Well Houston today was 30.40 on the altimeter. I’m currently at 36,000ft and up here we use standard of 29.92. So that’s 480ft difference on gauge.

Also for people complaining about the buttons being overhead and it being a distraction….

Ineos Grenadier overhead switches 3.0?

flynnsk · Dec 14, 2023

rovie said:
Ineos Grenadier overhead switches 3.0?

wait, I feel like I am missing out.. where is/was "2.0" (or 1.0) ;p

DenisM · Dec 16, 2023

My pre-Grenadier Hyundai Santa Fe had an inbuilt altimeter which was calibrated by GPS. It was an interesting exercise to compare its output with local "Official" elevation markers. Usually within 10-15m of the markers in various east coast locations from Cairns in far north Queensland to Melbourne some 3600 km to the south.
Surf club carpark altitudes varied between -5m and +20m. I haven't a clue what their real elevation was

but my feet were dry

jeffmattSD · Dec 22, 2023

If the device is going to so inaccurate, why even put it in the vehicle?

Clark Kent · Dec 22, 2023

Tomdoc said:
It's definitely working ok on mine and after the s/w update so are the pitch and yaw readings. I always thought the elevation was done using GPS?

That's my understanding also using GPS triangulation. I believe the compass/ altimeter is a repeater for the GPS data the Pathfinder feature uses. In my experience if Pathfinder is not working then the compass is not working either. I think the hardware is probably ok because it does work sometimes.

I'm still on software 1939 and I'm hopeful it will be resolved in software 1946 or subsequent.

GrumpyBastard · Dec 22, 2023

jeffmattSD said:
If the device is going to so inaccurate, why even put it in the vehicle?

The same has been said about the driver.

Hahah, I joke. But really, it’s a car, not an airplane. An altimeter is for entertainment value.

Clark Kent · Dec 22, 2023

Yep. I would be happy with a nice analog clock. It could be broken but still be correct twice a day. That would be an improvement on the compass.

Got Coffee? · Jan 2, 2024

Mine shows between -80' and -90', my house is at +28' so something seems not calibrated.

SVP7 · Jan 28, 2024

I picked up my grenadier a few weeks ago and getting -80' to -100' readings as well. Has anyone figured out if the altimeter can be recalibrated or is it basically sort of useless.

Thanks

Mountain4x4 · Jan 28, 2024

For New Orleans its just predicting the future is all. Pretty smart!

Psignore00 · Jan 30, 2024

I knew Tampa was prone to flooding, but geesh, it might as well not even be there if it’s that inaccurate

GrumpyBastard · Jan 31, 2024

For those that are upset/complaining/disenfranchised by the “altimeter,” what exactly do you expect from it?

Jiman01 · Jan 31, 2024

Clark Kent said:
Yep. I would be happy with a nice analog clock. It could be broken but still be correct twice a day. That would be an improvement on the compass.

That’s actually a great idea. Ineos should parter with Bremont, CWC, or some other British watch brand. I’ll mention the brand Christopher Ward, but I’m assuming Sir Jim wouldn’t want some other blokes name in this vehicle

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