Yes. The 2021 Honda Accord is equipped with a Tire Pressure Monitoring System that uses direct sensors in all four wheels, standard on U.S. models. The spare tire is typically not monitored by TPMS.
Beyond the sensors themselves, TPMS helps drivers maintain proper tire inflation by alerting when a tire’s pressure falls below the recommended level. In Hondas, the system communicates with the driver through a warning light on the instrument cluster and may display individual tire pressures on some trims.
What TPMS is and how it works in the 2021 Accord
TPMS is designed to prevent under-inflation-related issues by continuously monitoring tire air pressure and signaling when action is needed. In the 2021 Accord, the system uses direct sensors embedded in the valve stems of the four road wheels to report pressure data to the vehicle’s computer.
Key components and how it works:
- Direct TPMS sensors: one sensor in each of the four wheel valve stems
- TPMS control module: processes sensor data and communicates with the instrument cluster
- Relearn/initialization: required after tire rotation, replacement, or certain tire service
- Driver alerts: a warning light on the instrument cluster and, on some trims, a readout of individual tire pressures
In practice, this means drivers receive timely warnings if any tire is under-inflated and can take corrective action to maintain safety and fuel efficiency.
What to do if the TPMS warning light comes on
When the TPMS light appears, follow these steps to diagnose and address the issue:
- Check all four tires with a reliable pressure gauge
- Inflate each tire to the vehicle’s recommended PSI found on the doorjamb placard or owner’s manual
- Inspect tires for punctures, leaks, or damage and replace or repair as needed
- If pressures are correct and the light remains, consider a TPMS relearn/reset or sensor service at a tire shop or Honda dealer, as a faulty or dead sensor battery can trigger the warning
Ignoring a TPMS warning can lead to unsafe driving conditions, so timely verification and service are recommended.
Summary
In short, the 2021 Honda Accord includes a four-wheel direct TPMS with sensors in each road wheel and standard monitoring across U.S. trims. The system helps ensure proper tire inflation by signaling under-inflation and, if needed, prompting a relearn after tire work. The spare tire is typically not monitored, and any TPMS warning should be addressed promptly to preserve safety and performance.