The Tire Pressure Monitoring System (TPMS) is reset mainly by bringing all tires up to the recommended cold pressures and letting the system relearn as you drive. In most 2008 Accords, you don’t need a special tool—and many trims relearn automatically after highway driving; some models do have a dedicated TPMS reset/learn switch.
This article explains what TPMS does, what you should do before attempting a reset, and the step-by-step procedures for models with and without a reset switch. It also covers what to do if the warning light stays on after attempting a reset.
Understanding TPMS in the 2008 Accord
The 2008 Honda Accord uses direct TPMS sensors in each wheel. When tire pressure drops, the sensors report the change to the vehicle’s computer, triggering a warning light on the dash. After correcting tire pressures, the system can relearn the sensor locations and stop the warning. The exact method to trigger a relearn can vary by trim level and may require a dedicated reset switch on some models.
No dedicated TPMS reset switch (common on many 2008 Accords)
Use this procedure if your car does not have a manual TPMS reset button. The relearn typically occurs automatically after you inflate the tires to the correct pressures and drive at highway speeds for a short period.
- Check all four tires (and the spare if it has a sensor) and inflate them to the recommended cold pressures shown on the driver's door jamb placard or in the owner's manual.
- Ensure the tires are cold before measuring pressures (no driving for several hours or more than a few miles in the last couple of hours).
- After inflating to spec, drive the car at a steady highway speed (about 50 mph/80 km/h or higher) for at least 10 minutes to allow the TPMS to relearn the sensor locations.
- Watch the TPMS warning light: it should turn off once the relearn is complete. If it stays on, recheck pressures and inspect for possible sensor issues or leaks; a service visit may be needed if the light remains lit.
The above steps outline the standard relearn process for most 2008 Accords without a dedicated reset switch. If you don’t see the light deactivate after driving, consider visiting a tire shop or Honda service to diagnose sensor health or battery condition.
TPMS reset/learn switch equipped models
Some 2008 Accord trims may include a TPMS reset or learn switch. If your car has this feature, follow the manual’s exact instructions; the general approach is usually similar to the following.
- With the ignition on and the engine off, locate the TPMS reset/learn button (often under the dash near the steering column or in the glove box).
- Press and hold the button until the TPMS indicator in the instrument cluster blinks or changes state according to the manual.
- Drive at around 50 mph (80 km/h) for about 10 minutes to complete the relearn.
If your vehicle uses a reset/learn switch, following the exact sequence in the owner’s manual is important, since variations can occur by trim level or production batch. If you’re unsure whether your Accord has this feature, check the owner’s manual or contact a Honda dealer for your specific VIN.
What to do if the light stays on after resetting
If the TPMS warning remains after inflating to spec and attempting a relearn, or if you notice a persistent low-pressure warning, do the following:
- Recheck tire pressures with a reliable gauge, ensuring all four tires are at the recommended cold pressure.
- Look for signs of slow leaks, punctures, or damaged TPMS sensors in the wheels.
- Consider having the TPMS sensors inspected or replaced if a sensor battery is dead or a sensor is damaged. This typically requires a professional diagnostic tool.
Persistent TPMS warnings should be diagnosed by a tire shop or Honda service center to determine whether a sensor fault, a cracked valve stem, or other issue is causing the fault.
Summary
Resetting the TPMS on a 2008 Honda Accord mainly involves inflating all tires to the recommended cold pressures and driving at sufficient speed for the system to relearn. Most Accords relearn automatically, but some trims may offer a dedicated TPMS reset/learn switch—check the owner’s manual for your exact model. If the light remains after following these steps, consult a tire or Honda service center to diagnose possible sensor or system faults.