How to Troubleshoot the TPMS
Control Unit
The vehicle is equipped with TPMS (tire pressure monitoring system) and is controlled by the VSA modulator-control unit.
System Indicator
This system has an indicator on the gauge control module.

NOTE: For locations of the indicator, refer to gauge control module component location index.
The Low Tire Pressure/TPMS Indicator
If the system detects low tire pressure in any of the four tires, the low tire pressure/TPMS indicator comes on. It will stay on until calibration procedure starts.
CHECK SYSTEM (TPMS)
If a problem in the system is detected, the VSA indicator comes on and the low tire pressure/TPMS indicator comes on after blinking for about 75 seconds.
If VSA falls into error mode, TPMS also falls into error mode and stops all operation. If TPMS is calibrating, the calibration will be suspended.

If the system is OK, the low tire pressure/TPMS indicator should come on when you turn the vehicle to the ON mode, and then go off 2 seconds later. If they don’t, there is a problem with the system.
Conditions for Data Rejection
Even if the system is normal, calibration or deflation detection cannot be done during the following conditions.
The brake pedal is pressed.
The vehicle is stopping.
While going slower than 28 mph (45 km/h) or cruising over 65 mph (105 km/h).
Short turn, rapid acceleration, hard braking.
Conditions where the right and left wheels are rotating at different speeds like when driving on sand, loose gravel, snow, ice or extremely rough roads.
When the ABS, EBD, TCS, or VSA controls are operating.
Gentle cornering radius.
Driving on a steep slope.
Conditions Where TPMS Can Not Operate Normally
In the following cases, false warning might occur or deflation might not be detected.
Non-recommended tires are used.
Tires with different wear level, different brand, model, type or different sizes are used.
All four tires are not replaced to the recommended tires at once.
Calibrated with non-recommended tire pressure.
Temporary spare tires or tire chains are mounted.
Driving on sand, loose gravel, snow, ice or extremely rough roads.
With trailer towing.
With a roof carrier.
With a very heavy load.
With an extremely unbalanced load.
Rapid deflation like a tire burst.
Change of the Tire Pressure Threshold
When changing tire/wheel size, it may be necessary to adjust the tire pressure threshold using the HDS. If it is not adjusted, the system may not operate normally. This operation can be done through the ABS/TCS/VSA menu in HDS.