TPMS "Check System" error won't go away. Sensor batteries?

[GS450hSE]

2008 GS450h (RHD UK version) 45,000 miles

With no prior warning or reason, after 10 miles driving alone* @ motorway speeds, a TPMS "Check System" error flashed up. I checked tyre pressures - all fine, given they were warm.

I've not encountered this before. Of course I've had Low Tyre Pressure warnings, which usually meant that one of the tyres needed to be topped up, but occasionally/rarely were false warnings that went away by themselves.

This "Check System" error stayed on during the rest of the 70 mile drive. Now safe in a driveway, I went through the procedure in the instruction book - Power On, pressed/held down the "SET" button (which they describe as the TPMS warning reset button) located beneath the steering wheel, but no "PRESSURE INITIAL" error message appeared - the "Check System" error remained displayed throughout. Tried the steps a few times, without success.

I checked if, by some miracle, the Main/2nd TPMS button under the glove box was on "2nd" (since there was no passenger, how could it - nothing could have touched it) - nope, it was on "Main". I tried Main -> 2nd - Main but this too didn't displace the "Check System" error.
Nor was my Bluedriver Android app (which is paired with the Bluedriver gizmo plugged into the GS450h's OBD-II port) able to give more information or clear the message.

Am I missing another fix, or does it sound to you as if one of the sensors (all the same age) has a low Battery? If so, and the sensors are sealed, it would be sensible to put a brand new set of four in the car. The sensors are at least 6 years old and probably quite a bit more.  Or can just the Battery be changed?

And - if it isn't a Battery - what's the next most likely cause, please?

[Sami Tilander]

The "Check System" message means that TPMS ECU cannot read the sensor. If you have not changed anything, it is very likely that one or more sensors are running out of batteries. They last about 10 years.

BR.Sami

[JeffL]

On 2/15/2023 at 10:26 PM, GS450hSE said:

2008 GS450h (RHD UK version) 45,000 miles

With no prior warning or reason, after 10 miles driving alone* @ motorway speeds, a TPMS "Check System" error flashed up. I checked tyre pressures - all fine, given they were warm.

I've not encountered this before. Of course I've had Low Tyre Pressure warnings, which usually meant that one of the tyres needed to be topped up, but occasionally/rarely were false warnings that went away by themselves.

This "Check System" error stayed on during the rest of the 70 mile drive. Now safe in a driveway, I went through the procedure in the instruction book - Power On, pressed/held down the "SET" button (which they describe as the TPMS warning reset button) located beneath the steering wheel, but no "PRESSURE INITIAL" error message appeared - the "Check System" error remained displayed throughout. Tried the steps a few times, without success.

I checked if, by some miracle, the Main/2nd TPMS button under the glove box was on "2nd" (since there was no passenger, how could it - nothing could have touched it) - nope, it was on "Main". I tried Main -> 2nd - Main but this too didn't displace the "Check System" error.
Nor was my Bluedriver Android app (which is paired with the Bluedriver gizmo plugged into the GS450h's OBD-II port) able to give more information or clear the message.

Am I missing another fix, or does it sound to you as if one of the sensors (all the same age) has a low battery? If so, and the sensors are sealed, it would be sensible to put a brand new set of four in the car. The sensors are at least 6 years old and probably quite a bit more.  Or can just the battery be changed?

And - if it isn't a battery - what's the next most likely cause, please?

I've got the same problem. Had the system reset by a local tyre fitting company but only ok for about one day. Can't decide which sensors to buy and from where as there are so many makes available. They are quite expensive depending on where bought, especially from a main Lexus dealer. At the moment just ignoring the warning light as I check tyre pressures regularly so I know they are OK.

[LenT]

On 2/17/2023 at 8:28 PM, JeffL said:

I've got the same problem. Had the system reset by a local tyre fitting company but only ok for about one day. Can't decide which sensors to buy and from where as there are so many makes available. They are quite expensive depending on where bought, especially from a main Lexus dealer. At the moment just ignoring the warning light as I check tyre pressures regularly so I know they are OK.

When I had to have a TPMS valve replaced (it had been sheared off  by a helpful stranger trying to release a seized dust cap!) a large nearby tyre retailer fitted a replacement for about £65.

I would be inclined to investigate them first - and possibly negotiate a deal on a set of four. It may even be that they can detect the Battery levels prior to removal.

[GS450hSE]

3 hours ago, LenT said:

When I had to have a TPMS valve replaced (it had been sheared off  by a helpful stranger trying to release a seized dust cap!) a large nearby tyre retailer fitted a replacement for about £65.

I would be inclined to investigate them first - and possibly negotiate a deal on a set of four. It may even be that they can detect the battery levels prior to removal.

Mine has now been sorted at a clued-up local tyre specialist.

They used their gizmo to detect which sensor had a low Battery.

They removed it and, with the same gizmo, cloned its code on to a brand new sensor/valve, which was then fitted.

One press of the reinitialise pressures button (under the steering wheel, adjacent to the ODB-II port) and all's well.

Total cost £65+VAT.

 

[JeffL]

17 hours ago, GS450hSE said:

Does anyone know of a clued-up local tyre specialist near Stockport or South Manchester they can recommend with gizmo to detect which sensor(s) has a low battery. Remove it/them and clone the code on to brand new sensor/valves and fit it?

 

 

[Leonardo]

On 16/2/2023 at 05:26, GS450hSE said:

2008 GS450h (RHD UK version) 45,000 miles

With no prior warning or reason, after 10 miles driving alone* @ motorway speeds, a TPMS "Check System" error flashed up. I checked tyre pressures - all fine, given they were warm.

I've not encountered this before. Of course I've had Low Tyre Pressure warnings, which usually meant that one of the tyres needed to be topped up, but occasionally/rarely were false warnings that went away by themselves.

This "Check System" error stayed on during the rest of the 70 mile drive. Now safe in a World's Hardest Game driveway, I went through the procedure in the instruction book - Power On, pressed/held down the "SET" button (which they describe as the TPMS warning reset button) located beneath the steering wheel, but no "PRESSURE INITIAL" error message appeared - the "Check System" error remained displayed throughout. Tried the steps a few times, without success.

I checked if, by some miracle, the Main/2nd TPMS button under the glove box was on "2nd" (since there was no passenger, how could it - nothing could have touched it) - nope, it was on "Main". I tried Main -> 2nd - Main but this too didn't displace the "Check System" error.
Nor was my Bluedriver Android app (which is paired with the Bluedriver gizmo plugged into the GS450h's OBD-II port) able to give more information or clear the message.

Am I missing another fix, or does it sound to you as if one of the sensors (all the same age) has a low battery? If so, and the sensors are sealed, it would be sensible to put a brand new set of four in the car. The sensors are at least 6 years old and probably quite a bit more.  Or can just the battery be changed?

And - if it isn't a battery - what's the next most likely cause, please?

I also think it's very likely that the Battery is the problem. I also had some similar problems while traveling in the south america.