A flashing TPMS light followed by steady illumination can mean a system malfunction even when tires look normal. Measure cold pressure with a gauge.
This reference supports the stated topic only. Model, model year, equipment, current rule or individual vehicle conditions may differ; check the original source before acting.
Read the NHTSA original: Tire Safety and TPMS Warning Behavior Source date: current web guidance; research checked: 2026-11-01.
Check the tires themselves
Visual appearance is unreliable. Use the door-placard pressure on cold tires, inspect for damage and follow the exact manual.
Check the warning sequence
NHTSA describes a roughly 60–90 second flash followed by steady light as a possible TPMS malfunction. If it persists, have the system inspected.
A tire can look full and still be low
NHTSA cautions that visual inspection is unreliable for pressure. Measure all tires cold with a gauge and compare with the door placard. A low tire needs attention even if a sensor malfunction is also present. If one tire loses pressure rapidly or is visibly damaged, follow the tire and roadside safety instructions rather than driving to clear the lamp.
If the TPMS symbol flashes for roughly a minute and then stays on, the monitoring system may not detect low pressure reliably. Recent wheel work, sensor registration, radio interference and a system fault can require different checks. The exact model-year manual controls the procedure; the light alone does not approve a sensor purchase.
Sources and scope
- NHTSA — Tire Safety and TPMS Warning Behavior Document: current web guidance · Research checked: 2026-11-01
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.