"Harry K" wrote in message
...
On Friday, December 12, 2014 9:00:40 AM UTC-8, dpb wrote:
On 12/12/2014 9:16 AM, philo wrote:
...

The industry is one step ahead of that.

A friend of mine bought a /used/ car and it has built-in tire pressure
sensors. She got a warning when one of the tires was low.

Since the car was used, that means the technology must have been around
for a while now.

Probably close to 10 yr if not longer; not sure whether it's yet in the
"mandatory" column for new or not but haven't had a vehicle without it
since an '06 model LeSabre that had them.

Yes, it is mandatory and has been for several years. The other "nice"
part is if you run two sets of mounted tires (winter/summer), the second
set also has to have them and that runs big bucks.


Why does the second set have to have them?