Had the low tire light on and SERV TPMS on the dash. Replaced the TPMS all 4. When I went to program them to the vehicle the horn wouldn?t honk at any wheel. I did have the vehicle in learn mode. I bought a different BCM and had it cloned also bought a different BCM antenna. Now when I program the TPMS to the vehicle it honks at every wheel. Low tire light is still on. I?ve drove it for over 300 miles and light still on. I did a live data on it with my scanner. It shows the tire pressures on each wheel bouncing around from 12lbs up to 212lbs. It will stay on a number for about 3 seconds and then change. Doesn?t matter if I?m driving it or just sitting at the house. The numbers just bounce around. They have done this with 2 different sets of TPMS. Does anyone have any ideas on why?

 

What MHz?

(((((((((HUMMER H3 TPMS sensors=315MHz!))))))))

Cheap sensors & relearn tool:

 

Have you used these exact ones? I have that tool and I?ve tried it as well. I also have a Foxwell Scanner and I used their Foxwell TPMS. And yes I?m using the 315mhz on both sets I?ve tried. If they have worked for you I?m willing to try them.

 

I have that tool (or one with the same model number that looks just like it but is branded as VXDAS - ) and use it often to relearn my VDO SE10003A Redi Sensors. The VDO sensors have broad software compatibility over a large range of vehicles and come pre-configured to be re-learned in the vehicle without requiring a tool to configure the sensor.

What specific sensors are in your tires? Do they need to be programmed/configured before use?

 

I?ll give them a try. The first set I bought were cheap ones and didn?t need programming. The second set were Foxwells the same as my scanner so I was able to program them with the scanner to the vehicle.