The warning light is an alert message to the driver that there may be a loss of air pressure from one or more of the vehicle’s tyres. It comes from the Tyre Pressure Monitoring System (TPMS), an active safety technology that has become a legal requirement for all newly launched and factory updated passenger cars sold in Europe since November Turn the engine on, then press and hold the reset button. You'll find it low and to the right of the steering wheel on the instrument panel. Hold the button down until the TPMS indicator light in the instrument panel blinks slowly 3 three times. Wait for several minutes with the engine running, to allow the system to record each tire's pressure If, after buying the vehicle, you decide to add electrical accessories (with the risk of gradually draining the battery), contact a Fiat Dealership. They can calculate the overall electrical requirement and check that the vehicle's electric system can support the required load. SCHEDULED SERVICING The message “PRESSURE REF ONGOING” is displayed for approximately 5 seconds. The request to reset the reference tyre pressure value has been taken into account. Reinitialisation is carried out after a few minutes’ driving. Note: the standard tyre pressure cannot be less than that recommended and indicated on the door frame. Display Use a good-quality pocket-type gauge to check tire pressure. Proper tire inflation cannot be determined by looking at the tire. Check the tire inflation pressure when the tires are cold, meaning the vehicle has not been driven for at least three hours or no more than 1.6 km (1 mi). Remove the valve cap from the tire valve stem. Press the tire During winter season, 2022 Fiat 500 tires can be inflated 3 to 5 psi over the suggested tire pressure settings to make up for lower temperatures. Never over-inflate above psi showed on tire sidewall. Try to check tire pressure routinely in colder times to keep tires appropriately inflated for a safe ride on snow and frosty streets. Then use a tire gauge to check the actual tire pressure to make sure it meets the recommend tire pressure level. If you don't own a tire pressure gauge, head to your local gas station where they have free air stations equipped with a tire gauge tool. Figure 2. Use a tire gauge to check the actual tire pressure to make sure it meets the If this is the case, then modify steps 4 and 6 as noted. 1. Inflate all tires to pressure listed on vehicle placard. 2. Leave the driver’s door open during the relearn procedure. 3. With the vehicle OFF, press and release the brake pedal. 4. Press the IGNITION BUTTON 5 times (NOTE: 8 times if 2x-to-RUN). Operation: TPMS tire pressure reset on Fiat Tipo. Before resetting the low tire pressure signal, it is necessary to check and restore the optimal inflation pressures, then get into the driver's seat and turn the ignition key to turn on the ignition. Locate the "set" command on the steering wheel controls on the left side and scroll the menu If all seems OK then just put a couple of extra pounds of pressure in each tyre, do the reset and go for a drive for 3 or 4 miles. If all OK reset the tyre pressure to the correct settings. Reset the vehicle again and that should be it sorted. If it comes back for no reason then one of the sensors is faulty. wcR315R.