Frequency 315MHZ 315MHZ 315MHZ 433MHZ 433MHZ. ★Step1:Inflate all ires. ★Step2:Tum off the ignition,Press and release brake pedal. ★Step4:Hom sounds twice. ★Step6:Single hom will sound. ★Step7:Repeat for rnght front sensor,right rear sensor,lef rear sensor.
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