Your GMC’s Tire Pressure Monitoring System (TPMS) is designed to warn the driver when low-tire-pressure conditions exist. A sensor measures tire pressure and temperature, then transmits data to your tire pressure monitor. If the pressure in one or more of your tires is 25 percent or more below the vehicle manufacturer's recommended cold inflation pressure for tires, a warning indication will alert the driver.
Your Original Equipment TPMS sensor battery can last up to 10 years with normal use. When the TPMS battery fails, the sensor will need to be replaced.
How do you know that air pressure is low or whether the TPMS has malfunctioned?
If your Tire Pressure Monitor light comes on and stays solid with a check tire pressure, low tire pressure, or add air to tire message, then check and adjust all tire air pressures to the recommended levels. Next, drive your vehicle to turn the light off.
If your Tire Pressure Monitor light appears as a blinking yellow lamp for more than one minute and stays solid, then diagnostic service is needed. If your TPMS is not functioning properly, it cannot detect or signal a low-tire condition. Simply schedule an appointment with one of our Certified Service Technicians and they can ensure your TPMS is operating properly so you can go with confidence.