Renault Laguna 5125 pressure sensor - programming offset

Could check tyre pressures in case that is what is triggering code .
Couple of other suggestions which might help you .
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I am a Laguna owner and have been for some time. Firstly inflate the tyre well beyond the pressure you need say 35-40 psi turn on the ignition and see if the warning lamp is still showing.

In winter when it's cold mine will come on due low pressure and I have found this a useful way to reset the pressure sensors. It will cost you nothing and if it works all well and good.

One other thing about the sensors are they are programmed to each wheel so the ECU knows which wheel is low, If someone has swapped the tires about not knowing the ECU could be sending you to the wrong wheel.

Once the sensor is reset, lower the pressure back to 29.5 or 30 psi.
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Yes - a Renault dealer can program the car to ignore the TPMS system, but they will charge between £30 and £60 to do this.
Why don't you get the sensors fixed? They are a safety feature. Much better to know you have a tyre problem instead of waiting for a tyre to blow out.