Tire Pressure (TPMS)
When you see the tire pressure (tpms) illuminate on the dashboard of your Volvo Xc40, it is a direct warning from the vehicle's onboard computer. Indicates that one or more of your tires is significantly under-inflated.

What does this mean on a Volvo Xc40?
When you see the tire pressure (tpms) illuminate on the dashboard of your Volvo Xc40, it is a direct warning from the vehicle's onboard computer. Indicates that one or more of your tires is significantly under-inflated.
Common Causes for Volvo Xc40
Punctured tire
Natural pressure loss over time
Sudden temperature drop
Faulty TPMS sensor
What To Do Next
Check tire pressures as soon as possible and inflate to the recommended PSI found inside the driver's door jamb. If the light flashes for 60-90 seconds when you start the car, a TPMS sensor has failed.
First checks
Note the warning color and whether it is flashing.
If safe, stop and visually check oil level, brake fluid, coolant temperature and battery terminals.
Read OBD2 codes and save freeze-frame data before clearing faults.
If the light returns, test sensors, wiring, fuses and live data before replacing parts.