A TPMS warning is a prompt to check the actual pressure and condition of every tyre. TPMS does not replace manual checks.
What to check
A steady warning commonly indicates low pressure; flashing behaviour can indicate a system/sensor fault.
Temperature changes can affect pressure but repeated warnings still need investigation.
TPMS is part of the MOT inspection where the rules apply to the vehicle.
Respond to the warning, not just the lamp
Measure all four tyres and inspect condition. If pressures are correct but the warning persists, the system may need diagnosis. Repeatedly resetting the lamp without checking the cause removes the value of the warning system.
After tyre or wheel work
Some vehicles require a reset or relearn procedure after inflation, rotation, sensor replacement or wheel changes. Follow the vehicle instructions rather than a generic sequence.
TyreDeck can help you spot warning signs, but it cannot inspect the tyre internally, measure damage, verify pressure calibration or certify that a tyre is safe to drive on. If you are unsure, avoid unnecessary driving and arrange a competent physical inspection.
What to do next
A garage or competent tyre professional can inspect pressure loss, ageing, fitment or another condition that cannot be confirmed online.
Sources and review
- Jurisdiction
- United Kingdom
- Last verified
- 2026-08-29
- Primary sources
- The Highway Code / GOV.UK
DVSA MOT inspection manual