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Re: 2008 tire monitor
Found this:
When asked how long the sensor batteries will last, industry representatives provide a broad life expectancy range of five to seven years and up to 100,000 miles are mentioned when addressing estimated life spans. The follow-up qualifier is that driving conditions, such as frequent on-off cycling of a TPMS, tire pressure sampling frequency and temperature extremes, will significantly shorten battery life. Translating to they cannot guarantee a specified amount as many things affect battery sensor life.
For now, though, the batteries are generally round and encased in a sensors molded plastic housing have finite lives. Since the batteries are entombed, a dead or dying one requires the replacement of its entire sensor assembly.
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