Every Crosstour built comes factory equipped with TPMS (Tire Pressure Monitoring System). Should your TPMS detect a low tire pressure in any tire, the Low Tire light will illuminate on your dash. Should this happen, inflate the low tire and test drive to above 24 MPH or more for at least a minute and the Low Tire Pressure Indicator will go off.
Every CT has two dash lights for TPMS. The first one is an exclamation point and tire, which means you have a low tire. The other light is the word TPMS. When this illuminates it means there is a fault in the system, such as spare tire usage or low TPMS battery.
Unfortunately, there is not quite enough information on page 313 and 408 of your owner’s manual. Here is more TPMS information for you.
To test the TPMS system, turn the ignition system to ON and TPMS icons will light up for two seconds and then go off.
Keep in mind that temperature can cause the TPMS to come on. For every 18 degrees F. this changes the tire pressure 1.5 PSI.
TIRE SEALANTS – Do not use ‘Fix-A-Flat’, ‘Slime’, or other tire sealants. These sealants can prevent the system from detecting the correct tire pressure. Use only regular air or Nitrogen.
COLD WEATHER – When the weather is extremely cold, perhaps around -40 F. or colder, the output of the lithium battery in each tire sensor may drop enough that it sets a DTC (Diagnostic Trouble Code), even though the system is normal.
SPARE TIRE – Whenever a non-TPMS wheel is put into use on the vehicle that does not have a TPMS sensor (such as your spare tire), it will set a DTC because the system is no longer receiving the signal from the transmitter.
Many people are eager to change their wheels and tires and or want to switch to snow tires during inclement weather. These wheels and tires also need to have the correct TPMS installed in the wheel.
Q) The repairs for my TPMS are too expensive. Can I ask the repair shop to disable this feature?
A) No. The NHTSA (National Highway Traffic Safety Administration) issued the Motor Vehicle Safety Act (49 USC 30122(b)), which includes a “Make Inoperative” provision. This provision prohibits manufacturers, distributors, dealers, or motor vehicle repair businesses from knowingly making inoperative, in whole or in part, any part of a device or element of design installed on or in a motor vehicle in compliance with an applicable motor vehicle safety standard.
Q) The tire shop damaged my TPMS sensor on one of my wheels when I was getting new tires.
A) The shop is obviously liable for any damage they did to your sensor, whether accident or not. Technically and legally, the shop is NOT allowed to return the vehicle to you until they repair the TPMS sensor otherwise it could present liability problems for the shop.
Q) Do I need to change the battery in my TMPS sensor?
A) No. The battery is incased in the sensors molded plastic housing. Since the battery is entombed, a dead or dying one requires the replacement of its entire sensor assembly.
Q) How long should the battery last?
A) The industry representatives suggest a range of between 5 to 12 years and/or 60,000 to 135,000 miles. Surveys have found that temperature extremes will significantly shorten battery life. Also transmission rate – meaning, how often the computer requires an update from the TPMS sensor. Not all manufacturers are the same. Some transmit every minute, 5 minute or 20 minutes. The more transmissions, the quicker the battery dies. To save battery life, the system only asks for a transmission of data when the vehicle is in motion.
Q) Can I test the battery life of my TPMS sensor?
A) Yes, most TPMS scan tools can detect and monitor the sensor’s battery life.
Q) If one sensor battery has gone dead, should I replace all the sensors?
A) If the vehicle is over 5 years old and over 60,000 miles, then, YES, best to just replace all four of them at one time. Many states require that TPMS lights be off in order to pass a vehicle inspection.
Q) What was the first passenger car to have a Tire Pressure Monitoring System?
A) The Porsche 959 in 1986.