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Hyundai C1314

Left rear TPMS sensor RF channel failure C1315: Right rear TPMS sensor RF channel failure C1662: Auto-learning failure The TPMS system can be inspected by performing the TPMS Recep

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Hyundai dealer or qualified service facility for TPMS Reception Rate testing and any further investigation indicated by the result.
Confidence95%

Quick answer

For 2022–2023 Hyundai Santa Fe vehicles in the US, DTC C1314 is identified as a left-rear TPMS sensor RF-channel failure. Hyundai/NHTSA bulletin 23-BE-001H directs inspection using the TPMS Reception Rate procedure.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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1. What does C1314 mean?

For 2022–2023 Hyundai Santa Fe vehicles in the US, DTC C1314 is identified as a left-rear TPMS sensor RF-channel failure. Hyundai/NHTSA bulletin 23-BE-001H directs inspection using the TPMS Reception Rate procedure.

2. Technical explanation

Verified evidence identifies C1314 as “Left rear TPMS sensor RF channel failure.” The same bulletin covers C1312–C1315 and C1662, and states that the TPMS system can be inspected with a TPMS Reception Rate procedure. A reception rate of 75% or higher is acceptable; a rate below 75% requires further investigation.

3. What system is affected?

Tire Pressure Monitoring System (TPMS), specifically the left-rear sensor RF communication channel.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • A stored TPMS DTC C1314 is established by the supplied evidence.
  • Other vehicle symptoms are not yet established by verified evidence.

6. Possible causes

  • Left-rear TPMS sensor RF-channel failure.
  • Further underlying causes are not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Have the TPMS system inspected using the TPMS Reception Rate procedure referenced in Hyundai bulletin 23-BE-001H.
  • Use a qualified Hyundai service facility for diagnosis if the reception rate is below 75%.
  • Do not perform unverified repairs based solely on the DTC.

10. Step-by-step troubleshooting

  1. Confirm DTC C1314 with an appropriate diagnostic scan tool.
  2. Perform the TPMS Reception Rate procedure described in Hyundai bulletin 23-BE-001H.
  3. Interpret the result using the bulletin threshold: 75% or higher is acceptable; below 75% requires further investigation.

11. When to contact service

Contact a Hyundai dealer or qualified service facility for TPMS Reception Rate testing and any further investigation indicated by the result.

12. What the service center may check

  • Retrieve and confirm TPMS DTC C1314.
  • Perform the TPMS Reception Rate procedure.
  • Determine whether the measured reception rate is at least 75%.
  • Further investigate if the reception rate is below 75%.

13. Possible repair or resolution

  • A specific repair for C1314 is not established by the supplied verified evidence.
  • The verified bulletin establishes that reception below 75% requires further investigation.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Hyundai bulletin 23-BE-001H, published January 24, 2023, covers TPMS DTCs C1312–C1315 and C1662 and describes the TPMS Reception Rate procedure.
  • Official source: https://static.nhtsa.gov/odi/tsbs/2023/MC-10230909-0001.pdf

16. Recall information

  • No recall information is established by the supplied verified evidence.

17. Official manufacturer information

NHTSA Manufacturer Communication PDF 10230909, Hyundai bulletin 23-BE-001H: https://static.nhtsa.gov/odi/tsbs/2023/MC-10230909-0001.pdf

19. Frequently asked questions

What does Hyundai DTC C1314 mean?

It means left-rear TPMS sensor RF-channel failure.

Which vehicles are covered by the supplied evidence?

The supplied applicability evidence identifies US-market 2022–2023 Hyundai Santa Fe vehicles.

What TPMS reception rate is acceptable?

Hyundai bulletin 23-BE-001H states that 75% or higher is acceptable.

What if the TPMS reception rate is below 75%?

The bulletin states that further investigation is required.

Does the supplied evidence establish that the vehicle is safe to drive or charge?

No. Drive and charging suitability are not yet established by verified evidence.

20. Sources & verification

Verified
Hyundai C1314: Left rear TPMS sensor RF channel failure C1315: Right… | EV Diagnostics