New wheels but TPMS issues
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Junior Member
Joined: Jan 2021
Posts: 5
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From: Vancouver
New wheels but TPMS issues
I just replaced the OEM 19" wheels on my Signature model with after market wheels and also had new after market sensors installed. They assured me that the codes from the original sensors were copied and transferred over to the new sensors. After driving around, they should self sync but it's been 3 days and my warning light is still on. Has anyone gone through wheel replacements?
Senior Member
Joined: Jan 2021
Posts: 215
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From: USA
According to the 2021 Mazda CX-5 Owner's Manual, it's supposed to self-register after installation and having driven around a bit.
Basically, it's supposed to register the new TPMS unique ID sensor code via: after the swap, turn the ignition ON, then OFF; wait for 15mins; then drive around above 16mph for at least 10mins, and the TPMS registration should complete.
Clearly, if it's been three days (of stopping, starting, parking overnight, etc), something's wrong. I'd suggest taking it to your Mazda dealer and asking the question. Very likely, it's a quickie thing. Though, possibly, if using non-Mazda-spec'ed TPMS devices, perhaps there's an incompatibility there.
See pp 254-257, for instructions on the Tire Pressure Monitoring System.
Basically, it's supposed to register the new TPMS unique ID sensor code via: after the swap, turn the ignition ON, then OFF; wait for 15mins; then drive around above 16mph for at least 10mins, and the TPMS registration should complete.
Clearly, if it's been three days (of stopping, starting, parking overnight, etc), something's wrong. I'd suggest taking it to your Mazda dealer and asking the question. Very likely, it's a quickie thing. Though, possibly, if using non-Mazda-spec'ed TPMS devices, perhaps there's an incompatibility there.
See pp 254-257, for instructions on the Tire Pressure Monitoring System.
System Error Activation
When the warning light flashes, there maybe a system malfunction. Consult an Authorized Mazda Dealer.
A system error activation may occur in the following cases:
Tires and Wheels
CAUTION
When inspecting or adjusting the tire air pressures, do not apply excessive force to the stem part of the wheel unit. The stem part could be damaged.
Changing tires and wheels
The following procedure allows the TPMS to recognize a tire pressure sensor's unique ID signal code whenever tires or wheels are changed, such as changing to and from winter tires.
NOTE
Each tire pressure sensor has a unique ID signal code. The signal code must be registered with the TPMS before it can work. The easiest way to do it is to have an Authorized Mazda Dealer, change your tire and complete ID signal code registration.
When having tires changed at an Authorized Mazda Dealer
When an Authorized Mazda Dealer,changes your vehicle's tires, they will complete the tire pressure sensor ID signal code registration.
When changing tires yourself
If you or someone else changes tires, you or someone else can also undertake the steps for the TPMS to complete the ID signal code registration.
NOTE -- If the vehicle is driven within about 15 minutes of changing tires, the tire pressure monitoring system warning light will flash because the sensor ID signal code would not have been registered. If this happens, park the vehicle for about 15 minutes, after which the sensor ID signal code will register upon driving the vehicle for 10 minutes.
Replacing tires and wheels
CAUTION
Be sure to have the tire pressure sensors installed whenever tires or wheels are replaced.
When having a tire or wheel or both replaced, the following types of tire pressure sensor installations are possible.
NOTE
The tire pressure sensor ID signal code must be registered when a new tire pressure sensor is purchased. For purchase of a tire pressure sensor and registration of the tire pressure sensor ID signal code, consult an Authorized Mazda Dealer.
When reinstalling a previously removed tire pressure sensor to a wheel, replace the grommet (seal between valve body/sensor and wheel) for the tire pressure sensor.
When the warning light flashes, there maybe a system malfunction. Consult an Authorized Mazda Dealer.
A system error activation may occur in the following cases:
- When there is equipment or a device near the vehicle using the same radio frequency as that of the tire pressure sensors.
- When a metallic device such as a non-genuine navigation system is equipped near the center of the dashboard, which may block radio signals from the tire pressure sensor to the receiver unit.
- When using the following devices in the vehicle that may cause radio interference with the receiver unit.
- A digital device such as a personal computer.
- A current converter device such as a DC-AC converter.
- When excess snow or ice adheres to the vehicle, especially around the wheels.
- When the tire pressure sensor batteries are exhausted.
- When using a wheel with no tire pressure sensor installed.
- When using tires with steel wire reinforcement in the sidewalls.
- When using tire chains
Tires and Wheels
CAUTION
When inspecting or adjusting the tire air pressures, do not apply excessive force to the stem part of the wheel unit. The stem part could be damaged.
Changing tires and wheels
The following procedure allows the TPMS to recognize a tire pressure sensor's unique ID signal code whenever tires or wheels are changed, such as changing to and from winter tires.
NOTE
Each tire pressure sensor has a unique ID signal code. The signal code must be registered with the TPMS before it can work. The easiest way to do it is to have an Authorized Mazda Dealer, change your tire and complete ID signal code registration.
When having tires changed at an Authorized Mazda Dealer
When an Authorized Mazda Dealer,changes your vehicle's tires, they will complete the tire pressure sensor ID signal code registration.
When changing tires yourself
If you or someone else changes tires, you or someone else can also undertake the steps for the TPMS to complete the ID signal code registration.
- After tires have been changed, switch the ignition ON, then back to ACC or OFF.
- Wait for about 15 minutes.
- After about 15 minutes, drive the vehicle at a speed of at least 25 km/h(16 mph) for 10 minutes and the tire pressure sensor ID signal code will be registered automatically.
NOTE -- If the vehicle is driven within about 15 minutes of changing tires, the tire pressure monitoring system warning light will flash because the sensor ID signal code would not have been registered. If this happens, park the vehicle for about 15 minutes, after which the sensor ID signal code will register upon driving the vehicle for 10 minutes.
Replacing tires and wheels
CAUTION
- When replacing/repairing the tires or wheels or both, have the work done by an Authorized Mazda Dealer, or the tire pressure sensors may be damaged.
- The wheels equipped on your Mazda are specially designed for installation of the tire pressure sensors. Do not use non-genuine wheels, otherwise it may not be possible to install the tire pressure sensors.
Be sure to have the tire pressure sensors installed whenever tires or wheels are replaced.
When having a tire or wheel or both replaced, the following types of tire pressure sensor installations are possible.
- The tire pressure sensor is removed from the old wheel and installed to the new one.
- The same tire pressure sensor is used with the same wheel. Only the tire is replaced.
- A new tire pressure sensor is installed to a new wheel.
NOTE
The tire pressure sensor ID signal code must be registered when a new tire pressure sensor is purchased. For purchase of a tire pressure sensor and registration of the tire pressure sensor ID signal code, consult an Authorized Mazda Dealer.
When reinstalling a previously removed tire pressure sensor to a wheel, replace the grommet (seal between valve body/sensor and wheel) for the tire pressure sensor.
Banned
Joined: Dec 2016
Posts: 484
Likes: 3
From: Northern Illinois
I just replaced the OEM 19" wheels on my Signature model with after market wheels and also had new after market sensors installed. They assured me that the codes from the original sensors were copied and transferred over to the new sensors. After driving around, they should self sync but it's been 3 days and my warning light is still on. Has anyone gone through wheel replacements?
Who's 'they'?
It may help if you told us the brand name and model of your aftermarket TPMS sensors...
Junior Member
Joined: Mar 2020
Posts: 29
Likes: 0
From: Toronto
I don't know the year of your Mazda, but I bought new rims, and TPMS, for our new 2020 CX5. I took them to costco, for new snows. The light would not go off. Costco gave up, and said take them back to Mazda. Turns out the pars department gave me the wrong monitors. They changed for 2020. Are yours, for an earlier year? In my case, the Mazda dealer replaced the sensors, and they have been fine since.
Senior Member
Joined: May 2013
Posts: 156
Likes: 0
From: Virginia
FWIW, I have used aftermarket sensors in another car, installed by Tire Rack. That car has a different control unit, that cannot sync like newer Mazda control unit. In my case, the sensors actually had to be initialized, "woken up" as it were, before they registered. There is also an additional step I have to take with that car (Subaru) which is to connect to OBD II port and upload the sensor codes for winters or summers, depending on what I am using.
Bottom line, your sensors may need to be "woken up" to start talking with the control unit .. Just a theory....
Bottom line, your sensors may need to be "woken up" to start talking with the control unit .. Just a theory....
Senior Member
Joined: May 2013
Posts: 156
Likes: 0
From: Virginia
Our 2021 Mazda CX5 TPMS seems to be fundamentally different than our 2014 TPMS head unit.
Our 2021 will learn the new location/identities in 10-15 minutes and/or 10 minutes of driving, not unlike my 2006 Acura.
That being said, for cars with less sophisticated TPMS and only 4 TPMS memories such as my 2019 WRX, I use the ATEQ quick change unit which has memory for both winter and summer tire TPMS units plus a spare, and can do this for up to 4 different vehicles.
You plug unit into the OBD port and upload the TPMS identities with push of a button.
Otherwise everything else is manual. You have to drag and drop individual TPMS locations to the desired location every time you rotate…I do this on my Windows computer through the ATEQ app which you can tell has its in the 2000’s but still works on Windows 11.
You also have to get the individual TPMS identities for each of your winter wheels, but since I bought everything from Tire Rack, that info was provided. But any mechanic should be able to do the same with a TPMS interrogator.
i have used this ATEQ Quick Change unit for years, and i think ATEQ has since come out with an upgraded model.
Senior Member
Joined: Oct 2015
Posts: 705
Likes: 9
From: Madeira, Ohio
If my memory isn't failing me, the 2014 did not use the individual sending units in the wheels, but utilized the ABS system to determine if there was a change in the revolutions that each tire made while driving and then assumed the change was due to a change in air pressure. The individual TPMS sensors in the wheels are more accurate, but more expensive and probably more prone to problems, but both work.