The spare typically does not have a TPMS. Interestingly, when you do have a soft tire/flat and you mount the spare, the TPMS will still alert, because it’s wirelessly reading the sensor from the tire you’ve removed.
TPMS is around $90 per wheel if you buy locally. I had one go bad a month ago, original unit (2006 GMC Yukon XL) and decided to replace all four. I bought them on eBay for $33 each (no tax, free shipping) and the local Discount Tire store mounted them for $10 each.
If it’s a full-size spare, it probably does have a TPMS sensor.
A friend of mine was going almost nuts with the TPMS warning light on his Rav-4 until I checked his (full-size) spare, found it very low on air, and inflated it properly.
Voila!
No more TPMS light glowing on his dashboard.
Every vehicle we’ve owned which has TMPS - the spare has a sensor.
First vehicle was my 05 4runner. Wife’s 07 Lexus, Son’s '11 Mazda and my 14 Highlander - all have TPMS on the spare. What vehicles have you seen that don’t?
The 2004 Chrysler Pacifica has a 4 sensor system, the spare tire does not have a sensor;
DESCRIPTION _
_ The Tire Pressure Monitoring (TPM) system monitors air pressure in the four road tires (excludes spare). Pressure in the spare tire is not monitored.
_ There is a sensor (transmitter) in each of the vehicle’s four road wheels. The system alerts the driver when tire pressure falls outside predetermined thresholds (pressure too low or too high). A message is then displayed in the instrument cluster._
General Motors: Chev and GMC spares do not have TPMS.
If it’s a full-size spare, it probably does have a TPMS sensor.
Not so. To clarify my earlier post, Chev and GMC SUVs (Tahoe, Yukon, Suburban, and Yukon XL, and probably all the pickups) have Full Size Spares and have no TPMS on the spare tire. It’s a four-sensor system.
Neither my '07 nor my '13 Mustangs have TPMS in the spares.
They don’t tell me the tire pressures on the dash display (like some GM cars) nor which one is low… just that one IS low. The data isn’t even available to pluck off the communication bus, either. Ford still expects me to “teach” the car where each tire is. Not a good implementation for a car company that arguably CAUSED them to be mandated.