Tire system on Readout
Thread Starter
Racer
Joined: Apr 2005
Posts: 315
Likes: 0
From: Johnstown PA
Tire system on Readout
I put Toyo's on yesterday and now the computer is giving the following message..."Serv. Tire Mont. Syst." What is the car telling me to do? Or what do I need to do to service the system? Thanks for the help!
Burning Brakes
Joined: Nov 2004
Posts: 1,028
Likes: 0
From: Fort Worth Texas
Originally Posted by 1stC5weiss
I put Toyo's on yesterday and now the computer is giving the following message..."Serv. Tire Mont. Syst." What is the car telling me to do? Or what do I need to do to service the system? Thanks for the help!
Team Owner
Joined: Sep 1999
Posts: 20,054
Likes: 44
From: Swansea IL
This is a common problem with some after market tires. First thing to look for is the valve stem cap. Did they replace them? You should be using the medal caps that come with the car. If all else fails maybe the tire construction in preventing the RF signal transmission to the receiver sensor.
Here's what is said about it:
TIRE PRESSURE MONITOR SYSTEM UPDATE
This is from a GM Tech Link Bulletin
Components: There is a separate sensor/transmitter in each wheel. The TPM (tire pressure monitor) system shares the receiver with the keyless entry system. Data from the receiver is displayed on the instrument panel, using the driver information center (DIC).
Sensors: The sensor, with built-in valve stem, is inserted from the inside of the wheel, through a hole in the rim. It is retained by a nut (4 n.m, 35 lb. In.) and is sealed by a grommet. A lithium battery with a design life of 10 years powers the sensor. Each sensor is coded differently. This permits the receiver to determine exactly which tire is over or under inflated.
Operation: The sensors operate only above 20 mph (32 kph) and transmit once per hour when parked, to preserve battery power. If the pressure in a tire rises or falls outside the calibration limits, the condition is displayed by the DIC. The low limit is 24 psi (168 kPa) and the upper limit is 39 psi (272 kPa).
Service: The sensors are lightweight, only about an ounce (28 g), and this small weight is easily accounted for during normal tire balancing. The sensors are mounted within the well of the rim. It’s important to be careful when using a tire-mounting machine. The sensor could be damaged in two ways: either by direct contact with the machinery or by the bead of the tire as it is forced over the rim. The valve stem cap is made of aluminum and the valve core is nickel-plated to resist corrosion. The end of the stem serves as the sensor’s antenna.
Tip: Do not replace either the cap or the valve with standard parts. This will interfere with the sensor’s ability to transmit. The TPM sensor is more precise than consumer-grade tire pressure gauges. It may be necessary to explain this if the customer routinely mis-inflates tires using a gas station gauge.
Receiver Programming: The receiver is programmed at the factory to recognize which sensor is at each wheel location. If tires are rotated or a sensor is replaced, the receiver must be reprogrammed, following SI procedures. If the receiver is not reprogrammed, the system will continue to report the correct pressures, but will assign them to the wrong locations on the vehicle.
Tip: There are two reprogramming methods. You must use the J-41760 Kent Moore magnet when a new sensor is installed. During tire rotation, you can use either the magnet or your Tech 2.
Magnet Method: You will have only one minute between horn chirps, and five minutes overall, to complete the procedure once you start. With ignition on, engine not running, press both lock and unlock buttons on the key fob. A horn chirp within 10 seconds indicates that the receiver is in programming mode. At each wheel, hold the J-41760 magnet over the valve stem until the horn chirps, to force the sensor to transmit its code. You MUST follow this order: LF, RF, RR, and LR. The horn chirps twice to indicate completion. Scroll through the DIC readout to verify all four pressures are displayed.
Tech 2 Method: With the TPM reprogramming procedure on your Tech 2, you can command each sensor to its new location. As long as no new sensors are being installed, the magnet is not needed. Scroll through the DIC readout to verify all four pressures are displayed.
NOTE: If you are wanting your own special magnet give Fichtner Chevrolet a call at 800-234-5284 or email at parts@fichtnerchevrolet.com to check on current price and avail.
Good luck
Tom
Here's what is said about it:
TIRE PRESSURE MONITOR SYSTEM UPDATE
This is from a GM Tech Link Bulletin
Components: There is a separate sensor/transmitter in each wheel. The TPM (tire pressure monitor) system shares the receiver with the keyless entry system. Data from the receiver is displayed on the instrument panel, using the driver information center (DIC).
Sensors: The sensor, with built-in valve stem, is inserted from the inside of the wheel, through a hole in the rim. It is retained by a nut (4 n.m, 35 lb. In.) and is sealed by a grommet. A lithium battery with a design life of 10 years powers the sensor. Each sensor is coded differently. This permits the receiver to determine exactly which tire is over or under inflated.
Operation: The sensors operate only above 20 mph (32 kph) and transmit once per hour when parked, to preserve battery power. If the pressure in a tire rises or falls outside the calibration limits, the condition is displayed by the DIC. The low limit is 24 psi (168 kPa) and the upper limit is 39 psi (272 kPa).
Service: The sensors are lightweight, only about an ounce (28 g), and this small weight is easily accounted for during normal tire balancing. The sensors are mounted within the well of the rim. It’s important to be careful when using a tire-mounting machine. The sensor could be damaged in two ways: either by direct contact with the machinery or by the bead of the tire as it is forced over the rim. The valve stem cap is made of aluminum and the valve core is nickel-plated to resist corrosion. The end of the stem serves as the sensor’s antenna.
Tip: Do not replace either the cap or the valve with standard parts. This will interfere with the sensor’s ability to transmit. The TPM sensor is more precise than consumer-grade tire pressure gauges. It may be necessary to explain this if the customer routinely mis-inflates tires using a gas station gauge.
Receiver Programming: The receiver is programmed at the factory to recognize which sensor is at each wheel location. If tires are rotated or a sensor is replaced, the receiver must be reprogrammed, following SI procedures. If the receiver is not reprogrammed, the system will continue to report the correct pressures, but will assign them to the wrong locations on the vehicle.
Tip: There are two reprogramming methods. You must use the J-41760 Kent Moore magnet when a new sensor is installed. During tire rotation, you can use either the magnet or your Tech 2.
Magnet Method: You will have only one minute between horn chirps, and five minutes overall, to complete the procedure once you start. With ignition on, engine not running, press both lock and unlock buttons on the key fob. A horn chirp within 10 seconds indicates that the receiver is in programming mode. At each wheel, hold the J-41760 magnet over the valve stem until the horn chirps, to force the sensor to transmit its code. You MUST follow this order: LF, RF, RR, and LR. The horn chirps twice to indicate completion. Scroll through the DIC readout to verify all four pressures are displayed.
Tech 2 Method: With the TPM reprogramming procedure on your Tech 2, you can command each sensor to its new location. As long as no new sensors are being installed, the magnet is not needed. Scroll through the DIC readout to verify all four pressures are displayed.
NOTE: If you are wanting your own special magnet give Fichtner Chevrolet a call at 800-234-5284 or email at parts@fichtnerchevrolet.com to check on current price and avail.
Good luck
Tom
