How to Identify Direct Tire Pressure Monitoring Systems Refer to the vehicle owner's manual or look for the following indicators... 1. Is the low tire pressure symbol found on the dashboard? Check for this symbol when starting the ignition. 2. Does the vehicle dashboard have a symbol of the vehicle that highlights tire positions, or a text message that states “check tire pressure” or something familiar? 3. Are the valves stems aluminum and/or secured with nuts? This may indicate a TPM sensor. |