Peugeot Expert III 12V Battery and Jump Starting
Hello and welcome. In this post we look at the 12 V battery on the Peugeot Expert III van (2016-2024). We cover where to find it, jump starting from another battery, charging with a charger, and disco
Peugeot Expert III Tyre Pressure
Peugeot Expert III van (2016-2024) tyre under-inflation detection: how it works, what to do on an alert, reinitialising and tyre pressure markings.
Hello and welcome. In this post we look at tyre under-inflation detection on the Peugeot Expert III van (2016-2024). We cover how it works, what to do when the alert comes on, reinitialising the system and where the tyre pressures are marked.
Quick Reference
Scroll the table sideways.
| Section | In short |
|---|---|
| Tyre under-inflation detection | How the system works and checking pressures |
| Under-inflation alert | What to do when the warning lamp comes on |
| Reinitialisation | Resetting the system after pressure or wheel changes |
| Identification markings | Where to find the VIN and tyre label |
Tyre under-inflation detection
This system alerts you if one or more tyres lose pressure. The alert only works while the van is moving, not when it is stationary.
The system compares information from the wheel speed sensors with reference values. These reference values must be reinitialised every time you adjust the tyre pressures or change a wheel. The system uses the last values stored during reinitialisation, so the tyre pressures must be correct when you do it. This is your responsibility as the driver.
Safety: the system never replaces your own vigilance. You still need to check the tyre pressures regularly, including the spare wheel, especially before a long journey. Driving with under-inflated tyres, particularly with a heavy load, at high speed or on a long journey:
- Worsens road-holding.
- Lengthens braking distances.
- Causes premature wear of the tyres.
- Increases energy consumption.
You will find the correct pressures for your van on the tyre pressure label.
Checking tyre pressures: check them monthly when the tyres are cold, meaning the van has been stopped for 1 hour or has done a journey of less than 6 miles (10 km) at moderate speeds. If the tyres are not cold, add 0.3 bar to the pressures shown on the label.
- Snow chains: you do not need to reinitialise the system after fitting or removing snow chains.
- Spare wheel: the steel spare wheel does not have an under-inflation detection sensor.
Under-inflation alert
The under-inflation warning lamp comes on and stays on, together with an audible signal and, depending on equipment, a message on the screen.
- Slow down: reduce speed immediately, and avoid excessive steering movements and sudden braking.
- Stop: stop the van as soon as it is safe to do so.
- Check all four tyres: use a compressor, such as the one in the temporary puncture repair kit, to check the pressures of all four tyres when cold.
- If you cannot check straight away: drive carefully at reduced speed.
- If you have a puncture: use the temporary puncture repair kit or the spare wheel, depending on equipment.
A loss of pressure does not always cause visible deformation of the tyre, so do not rely on a visual check alone.
Bear in mind that the alert is not triggered immediately after a sudden loss of pressure or a tyre blow-out, because analysing the wheel speed sensor values can take several minutes. The alert may be delayed at speeds below 25 mph (40 km/h) or in a sporty driving mode, and driving too slowly may not give optimum monitoring. The alert stays active until you reinitialise the system.
Reinitialisation
You must reinitialise the system after adjusting the pressure of one or more tyres, and after changing one or more wheels.
Before you start, check the pressures of all four tyres. They must suit the way you are using the van and match the values on the tyre pressure label. The system will not tell you if a pressure is wrong at the time of reinitialisation.
With dashboard button: with the van stationary, press the button for 3 to 10 seconds, then release it. An audible signal confirms the reinitialisation.
Without dashboard button: with the van stationary, reinitialise the system through the vehicle configuration menu.
Malfunction: if the system develops a fault, warning lamps light up on the instrument panel and tyre under-inflation monitoring is no longer carried out. Have it checked by a PEUGEOT dealer or a qualified workshop.
Identification markings
Your van carries several visible markings for identification:
- A. VIN under the bonnet: stamped on the chassis.
- B. VIN on the dashboard: printed on an adhesive label you can see through the windscreen.
- C. Manufacturer's label: fixed to the centre pillar.
- D. Tyres/paint code label: fixed to the driver's door.
The manufacturer's label shows:
- Manufacturer's name.
- European whole vehicle type approval number.
- Vehicle Identification Number (VIN).
- Gross vehicle weight (GVW).
- Gross train weight (GTW).
- Maximum weight on the front axle.
- Maximum weight on the rear axle.
The tyres/paint code label shows:
- Tyre pressures, unladen and laden.
- Tyre specification: dimensions, type, and load and speed indices.
- Spare tyre inflation pressure.
- Paint colour code.
Your van may have been fitted from new with tyres that have higher load and speed indices than those on the label, and this does not change the tyre pressures (on cold tyres). If you want to change the type of tyres, ask a PEUGEOT dealer which tyre fits are approved for your van.
Frequently Asked Questions
Where do I find the tyre pressures on my Peugeot Expert?
They are on the tyres/paint code label fixed to the driver's door, which shows the pressures unladen and laden, plus the spare tyre inflation pressure.
How do I reset the tyre pressure warning on a Peugeot Expert?
With the van stationary, press the dashboard button for 3 to 10 seconds and release it until you hear an audible signal. If there is no button, use the vehicle configuration menu.
Do I need to reset the tyre pressure system after fitting snow chains?
No, the system does not need to be reinitialised after fitting or removing snow chains.
Why did the tyre pressure warning not come on straight away after a puncture?
Analysing the wheel speed sensor values can take several minutes, so the alert is not immediate after a sudden loss of pressure or blow-out. It may also be delayed below 25 mph (40 km/h) or in a sporty driving mode.
The under-inflation detection is a useful backup, but it works best when you check your Expert's tyres every month and reinitialise the system with the correct pressures. Keep this guide handy, and see your handbook for full details.
More Peugeot Expert Guides
For more on the lamps on your dashboard, read our guides to the Peugeot Expert orange warning lights, the Peugeot Expert red warning lights and the Peugeot Expert green and blue indicator lamps.
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This is an independent guide, not an official Peugeot publication. Check your vehicle’s own manual before carrying out any work.
Related guides: Peugeot Expert model guides.
Cover adapted from a photograph by Vauxford — Wikimedia Commons, CC BY-SA 4.0 (AI edited).