My 08 Yukon Denali is doing something strange with its TPMS sensors. I switched from winter to summer tires a month or so ago, but since the TPMS has only been intermittently working. Sometimes the dash shows up numbers and all seems fine. Other times it flashes the TPMS warning light and then goes solid and all the numbers are --?
I tried a re-learn procedure, but that was also strange. Normal procedure is key in RUN, parking brake on and both key fob buttons --> two chirps. But in my case, I only get two chirps if the parking brake is OFF? And even in this situation, when I deflate the first tire I get no chirp to confirm even after lowering it considerably for 30 seconds or more.
Anyone any pointers on what's going on?
I tried a re-learn procedure, but that was also strange. Normal procedure is key in RUN, parking brake on and both key fob buttons --> two chirps. But in my case, I only get two chirps if the parking brake is OFF? And even in this situation, when I deflate the first tire I get no chirp to confirm even after lowering it considerably for 30 seconds or more.
Anyone any pointers on what's going on?