On a 2016 Honda Accord, a blinking tire pressure monitoring system (TPMS) light usually signals a problem with the TPMS itself or a learning/ relearn cycle, not simply that the tires are underinflated, even when you’ve added air.
Understanding what a blinking TPMS light means
The TPMS is designed to warn you when tire pressures fall outside a target range. A steady amber light typically indicates one or more tires are underinflated. A blinking light, however, points to a system issue or a learning process that the onboard computer is performing. In these cases, the car may not trust its readings from one or more wheel sensors, or it may be trying to relearn the correct pressures after changes to the tires or wheels.
Direct vs indirect TPMS
TPMS can operate in two ways. Direct TPMS uses sensors mounted in each wheel to read actual tire pressure and transmit it to the car’s computer. Indirect TPMS uses the ABS wheel-speed sensors to estimate pressure based on wheel rotation characteristics. A blinking light can occur with either system if a sensor, battery, valve, or receiver is having trouble, or if the system is in a relearn mode after recent tire work.
Common reasons you might see a blinking light even with air in the tires
Before you dive into diagnostics, note the most frequent causes reported by owners and technicians when the light blinks despite inflated tires:
- Weak or dead TPMS sensor battery in one or more wheels
- Damaged or leaky valve stem that fools the sensor or armor bead
- Recent tire rotation, replacement, or repair that requires the system to relearn
- Sensor data misread due to a faulty sensor, receiver, or ECU module
- Malfunctioning TPMS control module or wheel electronics
When the light blinks, it’s often a sign to check the system beyond the visible tire pressures. A professional diagnostic can pinpoint whether a sensor or module is at fault, or if the system simply needs a relearn.
What to do now: steps to take if the light is blinking
To address a blinking TPMS light, follow a practical sequence that first confirms inflation accuracy, then addresses potential relearn needs, and finally investigates sensor health.
- Check all tires with a reliable gauge when the tires are cold. Inflate each tire to the recommended PSI shown on the driver’s door jamb sticker (and don’t forget the spare if applicable). Recheck after the tires have cooled.
- Drive the car at steady highway speeds (about 30 mph or higher) for 10–15 minutes to allow any relearn process to complete if your Accord is in a learn mode after recent inflation, rotation, or tire service.
- Inspect for obvious issues such as a slow leak, damaged valve stem, or bead damage around any tire. If you find a problem, address it and recheck the TPMS after reinflation.
- If the light continues blinking after inflation and a short drive, have the TPMS relearn procedure performed. Some Hondas require a dealer or qualified shop with a scan tool to initiate the relearn process, especially after sensor changes or rotations.
- Have a professional diagnose the system if the light remains blinking. A technician can read TPMS fault codes, test sensors, and determine whether a sensor battery or wheel hardware needs replacement.
In most cases, a blinking TPMS light after confirming proper tire pressure points to a sensor or system fault rather than a current underinflation. A timely diagnostic helps prevent driving with unresolved TPMS issues and can extend tire life by ensuring accurate monitoring.
Summary
For a 2016 Honda Accord, a blinking TPMS light usually signals a TPMS fault or learning process rather than simply low tire pressure. Start by verifying all tires are at the recommended cold pressures, then drive to allow any relearn to occur. If the light persists, have a technician inspect the sensors, batteries, and control module with a diagnostic scan. Addressing the issue promptly helps ensure reliable tire monitoring and safer driving conditions.