The wife's 2005 Limited lit up the low tire warning today. All tire pressures checked good. Hooked up TechStream and have a DTC C2121 active code for (ID1 Not receiving data from transmitter). Being that the sensors are 12 years old, I plan on just going ahead and changing all five of them. What is a good brand/source to look for and what can I expect to pay for all five? Bypassing the system is NOT an option as she want it to TPMS system to function correctly.
