I just installed new TPMS sensors on all 4 wheels. Bought them on eBay (OEM). Had them installed by a mom/pop shop. Then took the car to a guy someone recommended that has the actual little computer to program them. He did. The light went off. The next day while driving , the annoying warning light came back on. The big light that asks you to take it to the dealer Do I also need to replace the one for the spare? This light is driving me nuts

 

The light usually means low pressure. Pump the spare to specs provided in the driver's door frame. Check all wheels and make sure the pressure is correct.

 

Are there any other warning lights displayed? From my experience with my 2007, if the TPMS valves are not recognized/not programmed, it doesn't trigger the Dealer warning message. It just was not able to read the tire pressures. Are all 5 of your tire pressures being displayed?

 

Yes you have to eventually replace the one for the spare also as it's battery wears out

however it the light comes on the spare PSI could be too low, pump it up to 35

I have an 07 and a couple years ago I had Discount Tire replace all five sensor and wake them up

 

It might seem that the bad sensor/unregistered sensor does not trigger the Dealer warning message, but it does. It's just that it is held off for 20 minutes. So if you had a bad sensor or unregistered sensor and you only drove your car for 15 minutes, then no warning other than no pressure displayed in the display. But if you had a bad sensor or unregistered sensor and drove for more than 20 minutes, at the 20 minute mark, after you turned the ignition on, you would get the yellow dealer warning light.

 

I recently replaced four sensors on my 2014 (Autel brand) and got the warning lights on the dash. After reprograming the sensors the dash light would not clear. I got tired off of it and ordered 4 oem sensors and had those installed. Issue resolved, seems the LS only like the oem TPMS sensors. lol
I recommend you get the oem sensors if you can and return the ones you have. Good luck.