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Ineos Grenadier — TPMS Reset & Sensor Guidance

Keep your Ineos Grenadier safe on- and off-road with accurate tire pressure monitoring. The Grenadier uses 433 MHz TPMS sensors (OEM part 407005663R) and a simple "learn/relearn" process — but when you change tires, wheels, or sensors, following the right sequence saves time and keeps the system reliable.

Why this matters

Proper TPMS operation protects your tires, improves fuel economy, and prevents uneven wear. When you swap wheels, replace a sensor, or fit aftermarket deflate valves, the Grenadier's system needs to relearn the sensor IDs or the vehicle may display a TPMS fault or inaccurate pressures. The vehicle will usually learn pre-programmed sensors after the correct install and a relearn/reset procedure, but many also rely on a trigger/program tool for quick service.

Quick "Ineos Grenadier TPMS reset" — step-by-step

1. Install sensors correctly — fit each TPMS sensor per wheel manufacturer instructions and torque valve nuts to spec. Label wheels (LF/ RF/ LR/ RR) if you remove them.

2. Inflate to placard pressure — inflate all tires to the vehicle placard PSI (door jamb). The Grenadier learns the current pressures as the "baseline."

3. Perform vehicle reset / relearn — with ignition on, go to Vehicle Settings → Tyres (or the Grenadier's TPMS menu) and press "Reset" (or follow the on-screen relearn prompt). Wait a short drive; the system will confirm sensor IDs and store the learned pressures. This method works for most Grenadiers.

4. Use a TPMS tool if needed — if the vehicle does not auto-learn or you're adding a second set of wheels, use a Foxwell TPMS trigger/programmer to read sensor IDs, trigger sensors, or program replacement sensors. Foxwell tools speed up diagnostics and programming for pre-programmed or universal replacement sensors.

5. Confirm on road — drive for ~10–20 minutes at moderate speed; confirm pressures display normally and no fault lamp remains.

Troubleshooting tips

• ·  Car doesn't recognise new sensors? Re-check sensor orientation and valve torque, ensure each sensor is the correct frequency (433 MHz / OEM part), and use a TPMS trigger to verify each sensor's ID.

• ·  After fitting Apex deflate valves or aftermarket wheels — relocating or protecting the factory TPMS sensor with a dedicated bracket preserves TPMS function; several Grenadier owners use a TPMS relocation bracket when fitting special valve systems. If you remove the factory sensor, the vehicle will lose monitoring until sensors are reinstalled/relearned.

• ·  Intermittent lost sensor messages — often caused by weak or mispositioned sensors, low battery sensors, or signal interference; verify with a trigger tool before replacing sensors.