.....a warning on the instrument panel???? Walking up to the V, I noticed one tire had a slightly larger radial tire “bulge”........sure enough, it has 20 psi. 2 tires have 35 psi and one tire has 34.5 psi.
When I had a nail through one of my tires I didn't get a warning until I started driving the car......a warning on the instrument panel???? Walking up to the V, I noticed one tire had a slightly larger radial tire “bulge”........sure enough, it has 20 psi. 2 tires have 35 psi and one tire has 34.5 psi.
It registers when in motion i believe when it sees a variance......a warning on the instrument panel???? Walking up to the V, I noticed one tire had a slightly larger radial tire “bulge”........sure enough, it has 20 psi. 2 tires have 35 psi and one tire has 34.5 psi.
Same experience.When I had a nail through one of my tires I didn't get a warning until I started driving the car.
The TPMS system on the 5TH GEN CR-V uses the ABS sensors to determine the variable between the 4 wheels rotation seeds. I would hope that these don't actually "go bad" !!!Devils in the details.......I should have said when walking up to the V “in the parking lot”, I noticed what appeared be a low tire. Driving home (about 3 miles), I then pulled into the garage, grabbed my digital tire gauge and found 1 tire 15 psi lower than the other 3 tires. Maybe I haven’t driven far enough......but then again, I don’t know long the tire has been low either. I checked pressures a month ago, after the new wheels were mounted.
Do the external Honda sensors go bad???? I’ve replaced all 5 internal sensors on our ‘09 RAV4.☹
Everybody knows there is a steering sensor......how else is the “lane keep” going to keep you between the lines...........(you do know you have a steering wheel position input sensfor, right?). You could drive a hundred miles and never have the car operate under the criteria and therefore not have the sensor going off at you............
Well I'll be switched, while running around town this A.M. doing errands (multiple stops), I make a 90* turn out of the local supermarket parking lot and halfway thru the turn I get a "DING" audible and "VISUAL" message saying "Tire Pressures Low". Headed straight home (bought ice-cream ), checked all 4 tires......15 psi in the suspect tire, 34.5-35 psi in the other 3 tires.
TPMS still works.......a little puzzling as to the delayed warning, especially when a blind man could see the obvious large bulge in the sidewall of the under inflated suspect tire.
Headed to Discount Tire......best service and best coffee in town.
Re-read my post #5. As I stated in my OP and post #5, the tire was noticeably low. I don't cary a gauge in my pocket but my 2 eyes told me the tire was low. Maybe I'm a little more observant than some. You are correct, a digital gauge will read within .5 psi.........that's why I stated 34.5 to 35 psi in a couple of my posts.I believe that Honda stopped using discrete TPMS sensors in 2015 (at least on the Fit). That was my first experience seeing no actual sensors on the tires. The advantage of not having discrete sensors is not having to replace them periodically when the battery fails as most shops charge about $100 or so for each one installed. The drawback is that the passive pressure sensing system has to see enough of a variance in the wheel speeds to determine that there is a low pressure problem. The person asking why 15 psi would change the wheel rpm, well, essentially the diameter of the tire decreases when it's significantly low in pressure, hence it will send a higher speed via the ABS speed sensors. The drawback is that the compact spare in most vehicles is smaller in diameter than your normal tire so if you get a flat and put the spare on, the TPMS warning light will probably come on as you drive it long enough for it to determine that it's low.
With discrete TPMS sensors, you don't have to drive very far though you have to get the vehicle speed up enough for the sensor to "turn on" from the rotational speed of the tire. Then it will transmit the data to the receiver and thus turn the warning light on.
Instead of walking around the vehicle and looking for the tire "bulge", it makes much more sense to just buy a digital pressure gauge and check each tire when they're cold (before driving the car). I'm certain that most people's eyes aren't "calibrated" enough to see if a tire is 4 psi low or 10 psi high. Digital pressure gauges are relatively cheap nowadays ($20 or so) and are usually accurate to within 0.5 psi.
TPMS is there for when a tire is punctured while driving... not as a replacement for normal periodic check of tire pressure, wear, etc.TPMS is government gone wild. They are not needed. I haven't had a flat tire in 40 years. I do walk around and look at tires once in a while especially on long trips. I also check my tire pressures about every 6 weeks and occasionally have to add a little air. I also get the lifetime rotate and balance and rotate every 7500 miles. I usually then check the tire pressures soon after. They are usually right on. My dealer also checks tire pressures at oil changes. I always check them almost right away. I often have to let some air out then.
You really should not have written this.. because you have now taunted Murphy's Law into coming for one of your tires.I haven't had a flat tire in 40 years.