In this guide 7 sections
Understand what is happening first
TPMS warns of low pressure or a system problem according to illumination pattern and model. Do not assume a failed sensor before measuring tyre pressure.
Safety decision before inspection
With rapid loss, a bulge or difficulty controlling the vehicle, stop safely and arrange tyre service before continuing.
Observations that help identify the direction
- Check cold pressures according to the placard, noting damage or rapid loss.
- Record whether the warning flashes then stays on and any recent tyre or wheel changes.
What should you request from the specialist?
Start with the information that distinguishes the symptom
If pressure is low, investigate the cause and correct it to the recommended level.
Evidence before component replacement
If the warning remains with correct pressure, review initialisation or the system according to type; not every system has in-wheel sensors.
Avoid this action
Do not merely clear the warning or inflate to the maximum pressure on the sidewall.
Questions to help you decide
Is appearance enough to estimate pressure?
No. Use a suitable gauge; low pressure may not be visually obvious.
Read the expanded explanation
Prepare the model name, year, engine and transmission type before visiting the workshop. Inspection procedures and specifications vary; do not transfer another vehicle's result to yours.
Sources and scope of this guide
Prepared editorially for 2uto using the following references on 12 September 2026. The observations organise the problem description and do not establish a cause without inspection.
Your vehicle manual takes priority. Dismantling, pressure, electrical and lifting procedures belong with a specialist; examples from a particular manufacturer do not apply universally.