Follow these steps if you need to replace a single transmitter on your TireMinder TM55 monitor.
- Enter the Learn Mode by pressing and holding the DN and UP buttons until you hear a beep.
- Press and release the UP button until you get to the tire position you wish to replace.
- Once there, press and hold the center button until the green LED light at the top of the monitor turns to red with and shows "- - - PSI"
- Attach the new transmitter. The LED should turn green again within 10 to 15 seconds.
- Exit the Learn Mode the same way you entered by pressing and holding both the DN and UP buttons until you hear a beep.