So when my tire burst due to hitting a pothole I was able to nurse it to the hard shoulder. Tire was flat and split wide open but at least it didn’t shred off the rim. Shouldn’t I have got a TPM warning? Also when all 4 tires were replaced the shop said if I got TPM warnings to drive at 60kph and they would reset but I never got any warnings.

M y question is could a po have disabled TPM somehow? Should I look for a missing fuse? Will TPM also warn over-inflation or only under inflation?

 

TPM is always negotiating and reporting at each corner of your car. By design, it is dynamic by nature.
Actually, the information shared with you is not entirely accurate. It takes about 10 min of driving at above 25kph to dynamically adjust.
And it is quite possible that the sensor was detected favourably and messages received, prior to a need for throwing an error message.