Bulletin 09-03-16-002 is being released to provide guidance for service consultants when a customer comes in with one of these TPM conditions:
- Low Tire Pressure warning light on
- A Check Tire Pressure, Low Tire Pressure, Add Air to Tire, or Service Tire Monitor System message
The proper strategy is to determine the nature of the Low Tire Pressure light, whether it is related to low air pressure or a system fault.
Solid Light - If the Low Tire Pressure light is on constantly, with one of the listed messages, the system is working properly. It is the owner's responsibility to adjust tire pressures properly and drive the vehicle to turn the light off.
Flashing Light - If the Low Tire Pressure light flashes for a minute, then stays on with a Service Tire Pressure Monitor System message, a TPM system problem exists. The vehicle should be written up and sent to service for diagnosis and repair.
Solid Light On, Then Off - If the customer says the Low Tire Pressure light comes on, but goes off after driving awhile, the system is working properly. Pressure in one or more tires is low enough to turn the light on when cold but increases when the tire warms up, causing the light to turn off. The system is working properly. It is the owner's responsibility to adjust tire pressures properly to turn the light off.
TIP: Do not relearn the TPM system at PDI or customer delivery after verifying proper tire pressure. The system has been set at the assembly plant. Do not relearn the system to turn the light off after adding air. On 2009 and later vehicles, the light will go off after inflating the tires to the proper pressure.
When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor or module), always use the Tech 2 to initiate the J-46079 relearn process. Tech 2-initiated relearns lock out other vehicle TPM signals that may be broadcasting in the area. This method avoids storing false TPM IDs and will prevent customers from returning with dashes (---) displayed in tire pressure readouts and/or a flashing tire pressure monitor (TPM) light. Checking the four TPM IDs with the Tech 2 before and following relearn to verify they are the same can prevent invalid ID learns.
IMPORTANT: The ONLY time labor operation E0716 or E0722 should be used is to diagnose for a system issue. That should occur ONLY if, at key ON, without starting the engine, the Low Tire Pressure light blinks for one minute and then stays on solid with a Service Tire Pressure Monitor System message (on vehicles equipped with a DIC). If that occurs, a TPM system problem exists and the system will have set a DTC. If one of these labor operations is used, the following Repair Order and Warranty System documentation are required:
- Document the customer complaint on the Repair Order.
- Document the TPMS DTC that has set on the Repair Order.
- Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim submission (refer to the Claims Processing Manual, Section IV, Warranty Claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order documentation must be sent back.
For more detailed information, refer to Bulletins 09-03-16-002 and 07-03-16-004 and TPMS Training Course 13044.12T2.
- Thanks to Ray Romeo
- Low Tire Pressure warning light on
- A Check Tire Pressure, Low Tire Pressure, Add Air to Tire, or Service Tire Monitor System message
The proper strategy is to determine the nature of the Low Tire Pressure light, whether it is related to low air pressure or a system fault.
Solid Light - If the Low Tire Pressure light is on constantly, with one of the listed messages, the system is working properly. It is the owner's responsibility to adjust tire pressures properly and drive the vehicle to turn the light off.
Flashing Light - If the Low Tire Pressure light flashes for a minute, then stays on with a Service Tire Pressure Monitor System message, a TPM system problem exists. The vehicle should be written up and sent to service for diagnosis and repair.
Solid Light On, Then Off - If the customer says the Low Tire Pressure light comes on, but goes off after driving awhile, the system is working properly. Pressure in one or more tires is low enough to turn the light on when cold but increases when the tire warms up, causing the light to turn off. The system is working properly. It is the owner's responsibility to adjust tire pressures properly to turn the light off.
TIP: Do not relearn the TPM system at PDI or customer delivery after verifying proper tire pressure. The system has been set at the assembly plant. Do not relearn the system to turn the light off after adding air. On 2009 and later vehicles, the light will go off after inflating the tires to the proper pressure.
When performing a TPM relearn (only after a tire rotation or replacement of a TPM sensor or module), always use the Tech 2 to initiate the J-46079 relearn process. Tech 2-initiated relearns lock out other vehicle TPM signals that may be broadcasting in the area. This method avoids storing false TPM IDs and will prevent customers from returning with dashes (---) displayed in tire pressure readouts and/or a flashing tire pressure monitor (TPM) light. Checking the four TPM IDs with the Tech 2 before and following relearn to verify they are the same can prevent invalid ID learns.
IMPORTANT: The ONLY time labor operation E0716 or E0722 should be used is to diagnose for a system issue. That should occur ONLY if, at key ON, without starting the engine, the Low Tire Pressure light blinks for one minute and then stays on solid with a Service Tire Pressure Monitor System message (on vehicles equipped with a DIC). If that occurs, a TPM system problem exists and the system will have set a DTC. If one of these labor operations is used, the following Repair Order and Warranty System documentation are required:
- Document the customer complaint on the Repair Order.
- Document the TPMS DTC that has set on the Repair Order.
- Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim submission (refer to the Claims Processing Manual, Section IV, Warranty Claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim may be rejected. If the Warranty Parts Center (WPC) generates a request, this repair order documentation must be sent back.
For more detailed information, refer to Bulletins 09-03-16-002 and 07-03-16-004 and TPMS Training Course 13044.12T2.
- Thanks to Ray Romeo
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