TPMS sensor questions

How did we ever get along with out them? Are all the tire gauges in the museums?

 

We traded spare tires out between our 2009 and 2017 Tacoma. No issues or TPMS lights on either 2nd Gen or the 3rd Gen.

Pretty sure it's default or Factory setting is to look for 4.

 

spare sensors were only from 2006-2008.

 

If any either of our two vehicles would have had a sensor in the spare, I would have expected the TPMS light to go off. Nothing happend.

 

I'll say this...

While most of us grew up with a tire pressure gauge in the glove box and knowing what a low tire feels like on the road... I don't mind having a warning light for those in my family that don't have that "previous" experience.

 

Group question here:

Are there any aftermarket brands of TPMS sensors that anyone has had a BAD experience with and you would avoid recommending?

I know everything is made in China, but some stuff is better quality than others. Thanks in advance.

 

Wonder how many people actually check spare tire pressure? Just curious, mine was upside down from the factory, yes it will fit just fine the other way around and then you actually can check the pressure with out removing the tire. Nice to know instead of having two flat tires at the same time.

 

^The spare is unbalanced if you hang it outside-down. You'd need to hold the tire while cranking the hoist up, minor inconvenience.

Me? I keep the spare at 0 psi for maximum protection off-road... For people that air up and air down every few weeks for trail rides, TPMS is just another light on the Christmas tree

 

i have bought three sets of tpms sensors within the last year from rockauto for my wife, son and my vehicles. two sets were the "Schrader" brand and the set for my truck were "Denso". the densos were made in japan and the Schraders were made in england. discount had no issues programming them.

 

Ah you'll have to explain that, it weights the same right side up or up side down. Yes if it's off center it will flop to one side it doesn't matter up side down or right side up. I remove it ever year to FF the truck.

 

Pretty hard to check tire pressure at 70 mph in the fast lane of the freeway. It was never intended to replace regular checking with a gauge. It was designed to give you advance warning of a rapidly deflating tire on the highway and give you time to get out of traffic and pull over to the shoulder.

 

Ah it's some thing you think you might notice with out the light? I have been driving for 60 plus years and 60 years ago the tires really were not that good but we survived with out the light. Yes I check pressure regularly even the spare. On the plus side they do come on with low pressure before you even move.

 

That's actually not the reason the DOT mandated TPMS in 2005. Have a read: https://www.nhtsa.gov/sites/nhtsa.gov/files/fmvss/TPMS-2005-FMVSS-No138.pdf

The regs require the TPMS to detect a tire that has fallen 25% below the doorjamb sticker pressure within 20 minutes. Hyundai's comments during the rulemaking process suggests TPMS sensor sampling takes 3 minutes, and multiple samples are needed to overcome data errors, so a 20 minute grace period is necessary.

119-121 extra traffic fatalities each year in the country, according to page ii, out of about 43,000.

 

on newer honda vehicles there is no tpms sensor within the tire. they use a wheel speed sensor the detects when one tire is turning a different speed than the others. other makes may have the same tech by now.

 

Some of the earlier GM TPMS systems did the same thing.

 

The NHTSA paper from 2005 talks about this. Of course, nowadays the market expectation is to see actual PSI readings in the stereo head unit display, and be location-aware.

Meanwhile, manual transmission turd gens sold in Canada don't have TPMS at all. No ECU, no sensors.