What's new
The Grenadier Forum
Register Now for enhanced site access.
INEOS Agents, Dealers or Commercial vendors please contact admin@theineosforum.com for a commercial account.

Altimeter issues. Reset/Calibration possible?

R

reauxheaux

Grenadier Owner
Local time
12:24 PM
Joined
Jun 23, 2023
Messages
87
Reaction score
104
Location
New Orleans, LA
nuclearbeef said:
View attachment 7841981


These are the current barometric pressure readings for the US.
The Gren altimeter should read about 400 ft low in St Louis and approximately 250 ft high in Seattle right now.
Click to expand...
MIUf7c8.gif
 
carlg007

carlg007

Grenadier Owner
Local time
1:24 PM
Joined
May 18, 2023
Messages
142
Reaction score
181
Location
Florida
O

Ovrland Bill

Grenadier Owner
Lifetime Supporter
Founding Guard
Local time
10:24 AM
Joined
Sep 25, 2021
Messages
312
Reaction score
333
My Altimeter at least gives me a rough idea of time: I can only make out the displayed value when the instrument lights come on at night🫣
 
S

Sarven

Grenadier Owner
Local time
1:24 PM
Joined
Jan 31, 2024
Messages
2
Reaction score
1
Location
NJ, USA
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
Click to expand...

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?
Click to expand...
I live in NJ having the same issue about 100 ft off
 
Bruce

Bruce

Global Grenadier #51
Grenadier Owner
Lifetime Supporter
Local time
10:24 AM
Joined
Oct 20, 2021
Messages
893
Reaction score
1,284
Location
Washington, USA
Jiman01 said:
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 😂😂
Click to expand...
I'd take IWC, another Mercedes AMG F1 sponsor too.
 
Clark Kent

Clark Kent

Grenadier Owner
Lifetime Supporter
Local time
3:24 AM
Joined
Jul 26, 2022
Messages
644
Reaction score
1,649
Location
Toowoomba QLD, Australia
I posted earlier that I think the altitude data is GPS-derived, not atmospheric pressure. Can anyone confirm either way, or is there just a general consensus that it's a pressure instrument because it's labelled Altitude? A GPS error could also show the wrong height because it relies on triangulation between multiple satellites.
 
G

GrumpyBastard

Grenadier Owner
Local time
1:24 PM
Joined
Aug 7, 2023
Messages
119
Reaction score
141
Location
Colorado, USA
I’m willing to agree that it’s GPS based. There would be no reason to include a pressure instrument. Going to the off road pathfinder page shows the same data. I surmise that people have a similar unrealistic expectation of GNSS-based altitude/elevation figures. Although it’s not “accurate”, I still appreciate the novelty of it in my dashboard versus the branded plug option.
 
TD5-90

TD5-90

Grenadier Owner
Lifetime Supporter
Founding Guard
Local time
6:24 PM
Joined
Aug 22, 2021
Messages
435
Reaction score
909
Location
South Germany
DenisM said:
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:cool:
Click to expand...
At sea level +/-10m are a lot of error, at 2000m they're nothing. In fact, at 0.0m elevation even 1mm is inf % of error.

But there are people who believe it's best practice to calibrate their barometic altimeters at sea level....

Use common sense when using an altimeter, be it barometric or GPS based: If your're around sea level, common sense reasoning gives your altitude.
 
Last edited:
O

Obxgrenadier

Local time
1:24 PM
Joined
Nov 25, 2023
Messages
7
Reaction score
8
Location
Corolla, NC, USA
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?
Click to expand...
I have the same issue on the outer banks of NC. I’m 105 feet under.
 
Krabby

Krabby

Global Grenadier 76
Forum Moderator
Grenadier Owner
Lifetime Supporter
Local time
1:24 PM
Joined
Nov 5, 2022
Messages
5,054
Reaction score
9,698
Location
New Jersey, USA
Stu_Barnes said:
Well we have a potential winner here. lowest reading gets a free mug and t shirt.

It's official competition time.

Entries close on last day of Feb.
Click to expand...
limbo belt GIF
 
You must log in or register to reply here.

Similar threads

B
Picked up my Grenadier! First Impressions - Long
Replies
19
Views
2K
BillLumberg
B
Forum Store
The officially unofficial podcast for INEOS Automotive Grenadier Works Podcast
INEOS Grenadier Configurator

Latest posts

Share this page

Back
Top Bottom