Hyundai started using TPMS in 2006 on the Accent, Tucson and Veracruz. The carmaker equipped its other vehicles with TPMS starting in 2007.
Hyundai has used several different suppliers for its TPMS systems, including Continental, Lear, Siemens and TRW. Each of these systems operate similarly, but they do have slight variations; make sure to check vehicle information and TSBs for those variations.
Most Hyundai TPMS systems have an auto relearn function, but if a shop is initializing/registering a sensor or doing a manual relearn, they will need a TPMS tool that can capture the sensor IDs and program them into the TPMS module.
The only real difference between Hyundai and other OEM TPMS systems is the decision to place the antennas for the sensors in doors and tailgates. The body control module in some cases has a bundle of four coaxial cables that are routed to areas around the wheel wells. If the cables are damaged or routed incorrectly, they can fail to receive transmissions from the TPMS sensors. TSB 21-BE-001H outlines possible TPMS relearn procedure problems if the cables are not routed properly on some 2020 and up models.
Relearns
Since Hyundai TPMS systems have an auto relearn, shops do not have to perform a relearn procedure following a tire rotation. The receiver will complete the relearn procedure after the vehicle is driven up to 20 minutes at speeds over 12 MPH. Later systems require only 10 minutes at 15 MPH. Check the service information for the specific speeds and times for the relearn procedure.
Corrected tire inflation pressure will cause the TPMS indicator to shut off once the tire pressure sensor reports to the TPMS receiver, approximately 20 minutes after the vehicle stops moving, or after 20 minutes of continuous driving.
If you have a scan tool that can communicate with the TPMS module, you can observe the reception rate of the four wheels during the auto-learn process. The special test and PID can show you how many successful sensor transmissions are coming from a given sensor. This feature can be helpful in determining if the procedure is complete, or if there is a dead sensor or there might be a source of radio interference in or around the vehicle.
Reprogramming
If a TPMS wheel sensor is replaced or the TPMS module is replaced, you will need a TPMS tool that can collect the sensor IDs and program them to the TPMS module via the OBDII port.
Hyundai recommends not performing initialization or reprogramming if the vehicle is parked on a metal floor, roof, or even on an alignment rack or lift. The metal will transfer the RF signals, which can cause the learn procedure to fail and set DTCs.
External electronic devices connected to the vehicle’s power outlets such as a computer, seat warmer, massager, phone charger, etc. may also cause this condition.
In some cases where a sensor has failed, a system might pick up a sensor ID from another vehicle if it is driven nearby and has a similar sensor.
If a TPMS malfunction is caused by radio interference, a malfunction indicator lamp will illuminate and the trouble codes C1312-C1315 may be triggered. The TPMS malfunction indicator light will generally turn off if the sensor is removed from such interference. If the system is a TWR TPMS, the light will turn off after the vehicle is moved away from the interference and the ignition switch is turned on and off.
Common TPMS Codes
- C112600: TPMS ECU Battery Voltage Low
- C112700: TPMS ECU Battery Voltage High
- C121200: Vehicle Speed Sensor
- C131200: Front Left Sensor RF Channel Failure
- C131300: Front Right Sensor RF Channel Failure
- C131400: Rear Left Sensor RF Channel Failure
- C131500: Rear Right Sensor RF Channel Failure
- C132200: Front Left Sensor Over Temperature
- C132300: Front Right Sensor Over Temperature
- C132400: Rear Left Sensor Over Temperature
- C132500: Rear Right Sensor Over Temperature
- C133200: Front Left Sensor Fault
- C133300: Front Right Sensor Fault
- C133400: Rear Left Sensor Fault
- C133500: Rear Right Sensor Fault
- C161100: CAN Time-out EMS
- C166200: Auto Learning failure
New TSBs
Hyundai issued a TSB indicating that the Continental TPMS sensors on the following models have changed: Genesis G80 (DH), Accent (RB), Sante Fe (NC), Santa Fe Sport (AN), Equus, Genesis Coupe (BK), Sonata (YF), Sonata Hybrid (YF HEV), Elantra GT (GD) and Genesis sedan (DH). The new TPMS sensors have a shorter valve stem and the nut is shorter with a matte finish. However, the previous and current parts are interchangeable.
