Question
What is “auto-relearn” in TPMS systems?
Answer
Auto-relearn lets the vehicle automatically register new sensor IDs during normal driving.
Explain
The ECU listens for stable, repeated RF packets (usually 5+ consecutive bursts) and updates its internal ID table once consistency is confirmed. Each manufacturer defines conditions: Toyota requires 20+ mph for 5 minutes, Ford needs 30+ mph for 2 minutes. CHEPQ programmable sensors are calibrated to match these burst patterns for fast relearn success.
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