Bollettini tecnici

Potential cause of dTPMS (direct Tire Pressure Monitoring System) sensor failure. Lotus has been made aware of that some Emira vehicles have been affected by inaccurate dTPMS tire pressure readings being displayed, or, in some instances, tire pressure readings not being displayed at all. One cause of this issue has been identified as the excessive water-based lubricant being applied to fit the tire valve to the wheel rim at the wheel assembly procedure. The moisture/humidity entering the tire pressure monitoring sensor, causes corrosion and damage to the internal circuits, resulting in communication failures between the sensors and the vehicle. As a production running change, from VIN SCCLEKAX3RHB13186, a smaller quantity of gel-based lubricant is now used to fit the tire valve to the wheel rim. ACTION If diagnosing a dTPMS fault on an Emira (prior to 2024 model year VIN shown above)*, because of inaccurate dTPMS tire pressure readings, or no readings displayed at all, then: - Use the diagnostic flow chart shown on Technical Service Bulletin TSB-131-24009. - If the diagnostic route taken states that the next course of action is to replace a TPMS sensor(s), then request prior authorisation to fit a vehicle set (4) dTPMS sensors.