The TPMS light indicates one or more tires are underinflated or there is a fault in the Tire Pressure Monitoring System. It signals you should check tire pressures and inspect the system.
In the 2008 Accord, Honda uses a direct Tire Pressure Monitoring System with sensors in the wheels. The warning on the dashboard can come on for a slow air leak, a puncture, or a sensor problem, and it may appear as the TPMS symbol or a low-tire warning. The light is usually steady when there’s underinflation and may blink if the system itself is faulty. Here is how to interpret and respond to the warning.
What the TPMS light means on a 2008 Accord
The warning is triggered when a tire’s pressure falls below the vehicle’s specified level, or when the TPMS detects a fault in the sensors or control module. Temperature changes can also cause pressure to drop and trigger the light. A steady light usually points to underinflation; a blinking light points to a malfunction in the TPMS that requires service.
What to do when the TPMS light comes on
Follow these steps to verify tire pressures, adjust air, and determine whether you need service.
- Check the air pressure in all four tires (and the spare, if applicable) using a reliable gauge when the tires are cold.
- Inflate each tire to the cold-recommended pressure listed on the driver’s door jamb sticker or in the owner’s manual.
- After inflating, drive the car for a few miles at highway speeds to allow the TPMS to recheck and reset, if the system is functioning normally.
- Inspect tires for damage, punctures, or slow leaks; if you find a puncture, repair or replace the tire as needed.
- If any tire cannot reach the recommended pressure or if the TPMS light stays on after inflation and driving, or if it blinks, have the TPMS inspected by a professional technician or Honda dealer to diagnose sensor or module issues or replace faulty sensors.
These steps cover the common scenarios where the TPMS light appears and help ensure your tires are safe to drive on.
Additional considerations
In some cases, the TPMS light can come on due to a faulty sensor battery, a damaged wheel sensor, or a control module issue. The service process may involve reprogramming the TPMS or sensor replacement. Temperature extremes can cause fluctuations in tire pressure, so verify pressures after weather changes.
When to seek professional service
If the light remains on after inflating to the recommended pressure, or if it begins blinking, arrange a diagnostic check with a Honda dealer or a qualified tire shop. They can verify sensor integrity, calibration, and system wiring.
Summary
The TPMS light on a 2008 Honda Accord serves as a warning about tire pressure and system health. Start by checking all tires to the recommended cold pressures, inflate as needed, and drive briefly to reset. If the light persists or blinks, schedule service to inspect TPMS sensors, battery life, and control components. Regular tire maintenance helps ensure safety and performance.