What is happening with my tpms? Won't show tire pressure
Thread Starter
Super Member
Joined: Jan 2007
Posts: 714
Likes: 10
From: Los Angeles
2025 Panamera GTS
What is happening with my tpms? Won't show tire pressure
Just had some wheels fixed and tpms wnt get out of the active screen. Also if I say ok to reset it still won't show pressures and just says tpms active.
Is there something else I need to do. This has never happened before.
It won't reset even after 100 miles of driving to show any pressureS. And it doesn't say any of the monitors are defective or missing
Is there something else I need to do. This has never happened before.
It won't reset even after 100 miles of driving to show any pressureS. And it doesn't say any of the monitors are defective or missing
Newbie
Joined: Dec 2013
Posts: 13
Likes: 0
ML 350 4Matic
Hi folks,
I am having the same issue.
Replaced my (all four) tires yesterday (done by Discount tire and they have replaced the TPMS system/sensors per the invoice) and since then the TPMS is stuck in 'TPMS active' screen.
There is an option for 'use the current readings standard' etc etc.... but when I press it-----it says TPMS restarted. Then it goes back to TPMS active screen.
Drove more than 100 miles (>2 hours)
I searched the forums to see if there is any other way to reset but could not find any info.
Discount tire is closed today and tomorrow so can't go there till Tuesday.
Any thing else I could do.
Thank you
I am having the same issue.
Replaced my (all four) tires yesterday (done by Discount tire and they have replaced the TPMS system/sensors per the invoice) and since then the TPMS is stuck in 'TPMS active' screen.
There is an option for 'use the current readings standard' etc etc.... but when I press it-----it says TPMS restarted. Then it goes back to TPMS active screen.
Drove more than 100 miles (>2 hours)
I searched the forums to see if there is any other way to reset but could not find any info.
Discount tire is closed today and tomorrow so can't go there till Tuesday.
Any thing else I could do.
Thank you
Newbie
Joined: Oct 2015
Posts: 3
Likes: 0
ML350 2007, ML350 2012
Just had some wheels fixed and tpms wnt get out of the active screen. Also if I say ok to reset it still won't show pressures and just says tpms active.
Is there something else I need to do. This has never happened before.
It won't reset even after 100 miles of driving to show any pressureS. And it doesn't say any of the monitors are defective or missing
Is there something else I need to do. This has never happened before.
It won't reset even after 100 miles of driving to show any pressureS. And it doesn't say any of the monitors are defective or missing
Did you get any response or solution to above as i seem to have the same issues
Newbie
Joined: Oct 2015
Posts: 3
Likes: 0
ML350 2007, ML350 2012
Do I have to change the sensors as they were fine initially
Junior Member
Joined: Sep 2007
Posts: 19
Likes: 2
From: PHX, AZ
'14 ML350
First, make sure the tires are reset to the appropriate tire pressures. Here's what the 2014 Owner's Manual says:
Doesn't say how long the "teach-in" period or learning period needs to be before it's reset though. Important to note you're telling the car what the normal tire pressure should be so make sure the pressures are set at the correct pressure before you reset the TPMS. If the pressure is too high or too low and you reset it using this method you could have issues.
Make sure that the SmartKey is in position 2 in the ignition lock (page 157).
Press the < or > button on the steering wheel to select the "Serv" menu.
Press the ^ or v button to select "Tire Pressure."
Press the OK button.
The "Run Flat Indicator Active Press 'OK' to Restart" message appears in the multifunction display.
If you wish to confirm the restart:
Press the OK button.
The "Tire Pressure Now OK?" message appears in the multifunction display.
Press the ^ or v button to select "Yes".
Press the OK button.
The "Run Flat Indicator Restarted" message appears in the multifunction display.
After a teach-in period, the tire pressure loss warning system will monitor the set
tire pressures of all four tires.
Press the < or > button on the steering wheel to select the "Serv" menu.
Press the ^ or v button to select "Tire Pressure."
Press the OK button.
The "Run Flat Indicator Active Press 'OK' to Restart" message appears in the multifunction display.
If you wish to confirm the restart:
Press the OK button.
The "Tire Pressure Now OK?" message appears in the multifunction display.
Press the ^ or v button to select "Yes".
Press the OK button.
The "Run Flat Indicator Restarted" message appears in the multifunction display.
After a teach-in period, the tire pressure loss warning system will monitor the set
tire pressures of all four tires.
Newbie
Joined: Dec 2013
Posts: 13
Likes: 0
ML 350 4Matic
the store that change the tires said the sensors are working fine.
They were not much help.
I made an appointment with dealership in 2 days, will keep you guys posted.
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Newbie
Joined: Oct 2015
Posts: 3
Likes: 0
ML350 2007, ML350 2012
First, make sure the tires are reset to the appropriate tire pressures. Here's what the 2014 Owner's Manual says:
Doesn't say how long the "teach-in" period or learning period needs to be before it's reset though. Important to note you're telling the car what the normal tire pressure should be so make sure the pressures are set at the correct pressure before you reset the TPMS. If the pressure is too high or too low and you reset it using this method you could have issues.
Doesn't say how long the "teach-in" period or learning period needs to be before it's reset though. Important to note you're telling the car what the normal tire pressure should be so make sure the pressures are set at the correct pressure before you reset the TPMS. If the pressure is too high or too low and you reset it using this method you could have issues.
MBWorld Fanatic!
Joined: Jan 2013
Posts: 3,745
Likes: 811
From: The Great White North
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
A Mercedes dealership replaced aftermarket sensors that you bought at Discount tire *under warranty*? 
You must tell us where you had the the work done - I am sure peter here has a lot of work for them to do on his Toyota!
You must tell us where you had the the work done - I am sure peter here has a lot of work for them to do on his Toyota!
