Tire Pressure Sensor Life Expectancy
Thread Starter
Safety Car
Joined: Mar 1999
Posts: 3,630
Likes: 8
From: Virginia Beach Virginia
Tire Pressure Sensor Life Expectancy
I remember reading somewhere that the life expectancy of the tire pressure sensor battery is about 5 years...that should mean that a lot of '97 C5's will be heading to their tire store/dealer to have them replaced (even if your tires are in great shape...what PITA to go through the changeout).
Am I wrong about the life of the sensors?
Am I wrong about the life of the sensors?
Le Mans Master
Joined: Nov 2000
Posts: 7,391
Likes: 3
From: Chandler AZ
Re: Tire Pressure Sensor Life Expectancy (Mark S.)
5 years is about right... we are starting to see more failures. And they don't go out all at once. So, conceivably you could be making trips to the dealer. Too bad they didn't put a battery door on them. It would still a pain to change the battery but the expense to do so would be much less.
Team Owner
Joined: Sep 1999
Posts: 20,054
Likes: 44
From: Swansea IL
Re: Tire Pressure Sensor Life Expectancy (Mark S.)
The video that came with the GM 1997 Introduction Press Kit has a section on the "new run-flat" tire and sensor system used on the C5. The engineer doing to segment states they were designed to last 8 years. So 5 to 10 seems to be a good ball park window.
Tom
USAF Retired
Tom
USAF Retired
Burning Brakes
Joined: Nov 1999
Posts: 1,045
Likes: 0
From: Naperville, IL. USA
Re: Tire Pressure Sensor Life Expectancy (AFVETTE)
I wonder if the variance relies upon the mileage/use/rotation....? Would a sensor on a car w/ 3k miles last longer than one w/ 30k miles? 
Melting Slicks
Joined: Jan 2001
Posts: 2,361
Likes: 0
From: Sugar Land, TX USA
Re: Tire Pressure Sensor Life Expectancy (MANNY)
I wonder if the variance relies upon the mileage...
Yes, it does.
The circuit is switched on when driving :steering:, and is switched off when standing still.
There is a motion sensor doing that.
So battery life is a function of calendar time and driving time. :yesnod:
Yes, it does.
The circuit is switched on when driving :steering:, and is switched off when standing still.
There is a motion sensor doing that.
So battery life is a function of calendar time and driving time. :yesnod:
Mine seems very accurate at start up, after a night or longer in the garage. A friends 99' seems to read what ever the pressure was at prior shutdown and does not read accurately until he drives a bit.
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Melting Slicks
Joined: Jan 2001
Posts: 2,361
Likes: 0
From: Sugar Land, TX USA
Re: Tire Pressure Sensor Life Expectancy (MANNY)
...That doesn't seem true of the newer style 01'+ sensors? :confused:
Mine seems very accurate at start up,..
This thread is discussing the variance in battery life of the sensor.
Which the subject line also indicates. As well as the initial post.
Battery life has nothing to do with the accuracy of the pressure sensing circuit, as I assume you think off.
Mine seems very accurate at start up,..
This thread is discussing the variance in battery life of the sensor.
Which the subject line also indicates. As well as the initial post.
Battery life has nothing to do with the accuracy of the pressure sensing circuit, as I assume you think off.
Melting Slicks
Joined: Jan 2001
Posts: 2,361
Likes: 0
From: Sugar Land, TX USA
Re: Tire Pressure Sensor Life Expectancy (MANNY)
Thanks Manny :cheers:
But I am sill confused as to how my, second design, works. I have checked it several times. At startup, without moving the car at all, my sensors read the current air pressure. Not what they were at shut down, as if shut down the night before and allowed to cool.
I only continue this direction of discussion as to wonder whether the newer style might operate longer than the first generation?
But I am sill confused as to how my, second design, works. I have checked it several times. At startup, without moving the car at all, my sensors read the current air pressure. Not what they were at shut down, as if shut down the night before and allowed to cool.
I only continue this direction of discussion as to wonder whether the newer style might operate longer than the first generation?
Melting Slicks
Joined: Jul 2001
Posts: 2,188
Likes: 0
From: not speeding just flying low
Re: Tire Pressure Sensor Life Expectancy (MySea5)
Ken,
I read somewhere that the newer style ('01 and beyond) sensor, has a better/longer lasting battery. This enabled them to get rid of the switch and make the sensor smaller. The sensor is on all the time. I would imagine that the sensor just updates the car's computer every so many seconds, instead of putting out a constant signal when rotating like the old sensors. This would make the sensor last longer. I have heard 5 to 10 years, but definatly more on the newer sensors. I would definatly replace all four at the same time if one burned out. They are only a little over a hundred dollars for all 4 sensors and would save you 4 trips to the tire shop.
I read somewhere that the newer style ('01 and beyond) sensor, has a better/longer lasting battery. This enabled them to get rid of the switch and make the sensor smaller. The sensor is on all the time. I would imagine that the sensor just updates the car's computer every so many seconds, instead of putting out a constant signal when rotating like the old sensors. This would make the sensor last longer. I have heard 5 to 10 years, but definatly more on the newer sensors. I would definatly replace all four at the same time if one burned out. They are only a little over a hundred dollars for all 4 sensors and would save you 4 trips to the tire shop.
Thread Starter
Safety Car
Joined: Mar 1999
Posts: 3,630
Likes: 8
From: Virginia Beach Virginia
Re: Tire Pressure Sensor Life Expectancy (SAXN8R)
Thanks! I've been out of pocket on the forum for a little while.
Anyway it does look like GM has figured out a way to ensure you get into see them and get the sensor replaced.
Corey has a good idea...get them all replaced when one goes...but then again who knows how much battery life is actually left in each of the sensors. I only drive on weekends and put about 3k miles a year...hopefully these sensors will last at least 7-8 years.
Anyway it does look like GM has figured out a way to ensure you get into see them and get the sensor replaced.
Corey has a good idea...get them all replaced when one goes...but then again who knows how much battery life is actually left in each of the sensors. I only drive on weekends and put about 3k miles a year...hopefully these sensors will last at least 7-8 years.
Drifting
Joined: Jun 2000
Posts: 1,338
Likes: 0
From: Fontana CA
Re: Tire Pressure Sensor Life Expectancy (MANNY)
In the second design the last read value is stored in the BCM to be displayed as a default value at next start-up
Race Director
Joined: May 2000
Posts: 14,542
Likes: 5
Re: Tire Pressure Sensor Life Expectancy (SAXN8R)
I would definatly replace all four at the same time if one burned out. They are only a little over a hundred dollars for all 4 sensors and would save you 4 trips to the tire shop.
Melting Slicks
Joined: Jul 2001
Posts: 2,188
Likes: 0
From: not speeding just flying low
Re: Tire Pressure Sensor Life Expectancy (MANNY)
Wow Manny!
That is alot of information! I am glad you shared it with us! Now if you could just figure out how to make this system work on my Z06 you'd really be the man!
Thanks,
Corey
That is alot of information! I am glad you shared it with us! Now if you could just figure out how to make this system work on my Z06 you'd really be the man!
Thanks,
Corey
Race Director
Joined: May 2000
Posts: 14,542
Likes: 5
Re: Tire Pressure Sensor Life Expectancy (SAXN8R)
Yeah, I was wrong on the price. I think you can have all for for a little over 200 though at g m parts direct dot com.
Part #: 10438853
GM List (which is what most dealers try to charge): $126.25
GM Wholesale (like Fichtner): $94.68
Their price (watch the "shipping and handling"): $71.96
[Modified by EHS, 2:45 AM 12/21/2002]