tpms cant reset left front
07 envoy denali. Had the tire monitor system message coming on and off. intermittently. Right rear couldn't read sensor just dashes in place of the psi. So not knowing the last time it was reset due to tire rotations. I decide to do it this morning to confirm wheel position for the next time it came on.
I can get the 2 horn chirps. When letting air out of left front nothing. After trying the LF several time. Wondered if the other would work. The answer is yes. So the RF, RR, LR would chirp the horn LF will not.
Is this a bad tpms sensor? Is there something else I should look at?? The tpms is showing psi in all wheels on the dash.