Peugeot 308 II Tyre Pressure

Hello and welcome. In this article we cover the under-inflation detection system on the Peugeot 308 II (2015-present): how it works, what to do when the alert comes on, how to reinitialise it and where to find the tyre pressure label. Some features depend on your car's version or equipment.

Quick Reference

Under-inflation detection

The under-inflation detection system checks your tyre pressures automatically while you drive. It compares information from the wheel speed sensors with reference values, and it alerts you as soon as it detects a drop in pressure in one or more tyres.

These reference values must be reinitialised every time you adjust the tyre pressures or change a wheel. You do not need to reinitialise the system after fitting or removing snow chains.

The system does not replace your own vigilance as a driver. You still need to check the tyre pressures regularly, including the spare wheel, especially before a long journey. Driving on 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 car on the tyre pressure label. Check the pressures when the tyres are cold, meaning the car has been stopped for 1 hour or has covered 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.

Under-inflation alert

An under-inflation alert is shown by the warning lamp staying on, together with an audible signal and, depending on equipment, a message.

1. Slow down: reduce speed immediately, avoid excessive steering movements and avoid sudden braking.
2. Stop safely: stop the car as soon as it is safe to do so.
3. Check all four tyres: using a compressor, such as the one in the temporary puncture repair kit, check the pressures of the four tyres when cold.
4. If you cannot check straight away: drive carefully at reduced speed.
5. 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 make the tyre bulge visibly, so do not rely on a visual check alone. 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.

1. Check the pressures: make sure all four tyres are at the correct pressures for how you are using the car, as shown on the tyre pressure label.
2. Stop the car: the car must be stationary.
3. Open the menu: reinitialise the system through the Driving/Vehicle menu on the touch screen.
4. Wait for confirmation: a message and an audible signal confirm the reinitialisation.

The system does not tell you if a pressure is wrong when you reinitialise it, so always check all four tyres first.

Malfunction

If the system develops a fault, the warning lamps come on and a message appears with an audible signal. The tyre under-inflation monitoring no longer works in this case, so have the system checked by a PEUGEOT dealer or a qualified workshop.

Identification markings

Your 308 carries several visible markings that identify the car. The tyre pressure label is on the driver's door.

Your car may have been fitted from new with tyres that have higher load and speed indices than those on the label. This does not affect the tyre pressures (on cold tyres).

Frequently Asked Questions

What should I do when the tyre pressure warning light comes on in my Peugeot 308?

Reduce speed immediately, avoid sudden steering and braking, and stop as soon as it is safe to do so. Then check the pressures of all four tyres when cold, using a compressor such as the one in the temporary puncture repair kit.

How do I reset the tyre pressure warning on a Peugeot 308?

First check that all four tyres are at the pressures shown on the tyre pressure label. Then, with the car stationary, reinitialise the system through the Driving/Vehicle menu on the touch screen, and a message and audible signal confirm it.

Where is the tyre pressure label on a Peugeot 308?

The tyres/paint code label is on the driver's door. It shows the tyre pressures unladen and laden, the tyre specification and the spare tyre inflation pressure.

Do I need to reset the tyre pressure system after fitting snow chains?

No, you do not need to reinitialise the system after fitting or removing snow chains. You only need to do it after adjusting tyre pressures or changing a wheel.

Under-inflation detection gives your Peugeot 308 an early warning when a tyre loses pressure, but it works best alongside your own regular checks. Check the pressures when the tyres are cold, follow the label on the driver's door, and remember to reinitialise the system after every adjustment or wheel change.

More Peugeot 308 Guides

To find out what other lamps on your dashboard mean, see our guides to Peugeot 308 orange warning lights, Peugeot 308 red warning lights and Peugeot 308 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 308 model guides.

Cover adapted from a photograph by Jakub "flyz1" Maciejewski — Wikimedia Commons, CC BY-SA 3.0 (AI edited).