Hyundai P0846
PARTIAL REPAIR OF IVT & RELEARN ADAPTIVE VALUES TSB #: 23-AT-010H Page 6 of 7 SUBJECT: SUBJECT: 2. Input “76” for the pressure sensor characteristic value and then press “OK”. PRES
Quick answer
For applicable 2022–2023 Hyundai Kona vehicles in the US, DTC P0846 is referenced in Hyundai TSB 23-AT-010H under pressure-sensor replacement and IVT adaptive-value relearning procedures.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
Watch Videos
Relevant videos play here without leaving this diagnostic page.
No sufficiently relevant embeddable video has been accepted for this diagnostic yet.
Videos are supporting material and never override OEM or regulator evidence.
1. What does P0846 mean?
For applicable 2022–2023 Hyundai Kona vehicles in the US, DTC P0846 is referenced in Hyundai TSB 23-AT-010H under pressure-sensor replacement and IVT adaptive-value relearning procedures.
2. Technical explanation
Verified NHTSA-published Hyundai communication 23-AT-010H identifies P0846 alongside P0845 and P0867 in a section titled “Pressure Sensor Replacement.” The bulletin instructs technicians to use GDS-M, enter pressure-sensor characteristic value “76,” and follow the GDS-M instructions for TCU adaptive-values learning. The supplied evidence does not establish a standard generic definition of P0846 beyond this bulletin context.
3. What system is affected?
The verified bulletin context concerns the IVT, a pressure sensor, the transmission control unit (TCU), and TCU adaptive values.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
Not yet established by verified evidence.
6. Possible causes
- The verified bulletin associates P0846 with a pressure-sensor replacement procedure. It does not establish the underlying cause of the code.
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
- Arrange diagnosis by a Hyundai dealer or qualified technician using the applicable Hyundai GDS-M procedure.
- Do not attempt pressure-sensor or transmission/IVT repair based on this information alone.
10. Step-by-step troubleshooting
- A technician may consult Hyundai TSB 23-AT-010H for the specified IVT pressure-sensor replacement and adaptive-learning procedure.
- The bulletin directs use of GDS-M for “Oil Pressure Characteristics Input (Solenoid Valve Replacement),” entry of characteristic value “76,” and the TCU adaptive-values learning procedure.
11. When to contact service
Contact a Hyundai dealer or qualified service facility and provide DTC P0846 and reference Hyundai TSB 23-AT-010H.
12. What the service center may check
- Confirm whether the vehicle is a US-market 2022–2023 Hyundai Kona.
- Retrieve and assess DTC P0846 with Hyundai-compatible diagnostic equipment.
- Follow the applicable GDS-M instructions referenced in TSB 23-AT-010H if pressure-sensor replacement is being performed.
- Perform the TCU adaptive-values learning procedure as directed by GDS-M.
13. Possible repair or resolution
- The verified bulletin describes pressure-sensor replacement-related programming and relearning steps, including entering “76” as the pressure-sensor characteristic value and completing GDS-M-directed TCU adaptive-values learning.
- Whether any component replacement is required for an individual vehicle is not yet established by verified evidence.
14. Affected vehicles
- Hyundai Kona · 2022–2023 · US
15. Related TSBs / service bulletins
- Hyundai TSB 23-AT-010H, published through NHTSA as Manufacturer Communication MC-10241878-0001 on 2023-08-23. It references P0845, P0846, and P0867 in connection with pressure-sensor replacement and IVT/TCU adaptive-value relearning.
16. Recall information
No recall relationship is established by verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication PDF 10241878, Hyundai TSB 23-AT-010H: https://static.nhtsa.gov/odi/tsbs/2023/MC-10241878-0001.pdf
19. Frequently asked questions
What does P0846 mean for a 2022–2023 Hyundai Kona?
Verified evidence links P0846 to Hyundai TSB 23-AT-010H and its pressure-sensor replacement/IVT adaptive-value relearning procedure. A fuller generic code definition is not established by the supplied evidence.
Is P0846 covered by a Hyundai service bulletin?
Yes. Hyundai TSB 23-AT-010H references P0846, together with P0845 and P0867, in its pressure-sensor replacement procedure.
Can I keep driving or charge the vehicle with P0846?
Not yet established by verified evidence.