![]() You drive the vehicle for 30 miles and the light still has not gone out. You adjust your tire pressures because you have no way of knowing that it is a failed sensor causing the light to come on this time. Then a month or two later, you have a failure of the left rear tire pressure sensor and the light comes back on. There is still a fault code in the system for the right front tire. You adjust your tire pressure and simply drive until the light goes out. The TPMS sets a code for a low tire and identifies the right front tire as the problem-child. Here's the problem: Say your right front tire is low. This may not present a problem to you unless you have a tire pressure sensor failure. However, it WILL NOT clear any fault codes in the system unless you do a relearn. The light will turn off after about 25 or 30 miles of driving after you adjust your tire pressures. What the guy at the dealership told you is not exactly true. When the left rear tire has been relearned, the horn will sound a "double chirp" indicating that the relearn process has successfully completed.Īt this time, turn the ignition switch to the OFF position and adjust all of the tire pressures to the specification printed on the tire certification label inside the drivers door/door pillar area. Then you will have to repeat this a fourth time at the left rear. The horn will chirp and the right rear turn signal will illuminate indicating that the right front tire has been relearned and now you must now repeat the process at the right rear tire. Repeat the process for the right front tire. The horn will "chirp", indicating that the left front tire pressure sensor has been relearned and the turn signal at the right front will illuminate. Increase or decrease the tire inflation pressure on the left front tire for 8 to 10 seconds. When you have successfully entered TPMS RELEARN, the horn will chirp and the left front turn signal will illuminate. Enter into TPMS RELEARN using the Driver Information Center (DIC) controls. To use the manual method, set the parking brake. One is with a TPMS scan tool (this is the preferred method) and the other is the manual method (pain in the "you-know what", but requires no special tools or equipment). There are two different ways to relearn your Tire Pressure Monitoring System (TPMS).
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