Hyundai P0748
A) Shi
Quick answer
For the cited Hyundai transmission bulletin, DTC P0748 / P074800 is identified as a pressure control solenoid (PC) DTC. The supplied evidence applies to certain U.S. 2016–2020 Hyundai Kona and Sonata vehicles.
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 P0748 mean?
For the cited Hyundai transmission bulletin, DTC P0748 / P074800 is identified as a pressure control solenoid (PC) DTC. The supplied evidence applies to certain U.S. 2016–2020 Hyundai Kona and Sonata vehicles.
2. Technical explanation
The verified NHTSA-hosted Hyundai manufacturer communication 20-AT-001H lists P0748 and P074800 under transmission solenoid DTCs and describes them as “Pressure control solenoid (PC).” The bulletin directs technicians to record and erase the DTC, then refer to the appropriate TSB or shop manual and follow the repair procedure when a listed solenoid DTC is present. The supplied evidence does not establish a specific failed component, wiring fault, or repair for every P0748 occurrence.
3. What system is affected?
Automatic-transmission pressure control solenoid (PC), based on Hyundai bulletin 20-AT-001H.
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
- A pressure control solenoid (PC) DTC is identified by the verified Hyundai bulletin. A specific underlying cause is 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
- Record the DTC before it is cleared.
- Have a qualified Hyundai service technician consult the appropriate Hyundai TSB or shop manual procedure, as directed by bulletin 20-AT-001H.
10. Step-by-step troubleshooting
- The verified bulletin instructs technicians to check for DTCs, record the DTC, and delete the DTC.
- If P0748/P074800 or another listed solenoid DTC is found, the bulletin directs use of the appropriate TSB or shop manual repair procedure.
- Further diagnostic steps for P0748 are not provided in the supplied evidence.
11. When to contact service
Service is not explicitly classified as required in the supplied diagnostic record. However, the verified Hyundai bulletin directs technicians to use the appropriate TSB or shop manual procedure when P0748/P074800 is found.
12. What the service center may check
- Check for and record DTCs.
- Clear the DTC as directed in Hyundai bulletin 20-AT-001H.
- For P0748/P074800, refer to the appropriate Hyundai TSB or shop manual and follow its repair procedure.
13. Possible repair or resolution
- Not yet established by verified evidence. The supplied bulletin does not provide a specific repair for P0748/P074800; it directs technicians to the applicable TSB or shop manual.
14. Affected vehicles
- Hyundai Kona · 2016–2020 · US
- Hyundai Sonata · 2016–2020 · US
15. Related TSBs / service bulletins
- Hyundai manufacturer communication 20-AT-001H, published January 2, 2020 and hosted by NHTSA as MC-10170899-0001. It lists P0748/P074800 as a pressure control solenoid (PC) DTC and directs technicians to the appropriate TSB or shop manual when a listed solenoid DTC is present.
16. Recall information
No recall relationship is established by verified evidence.
17. Official manufacturer information
Verified source: NHTSA-hosted Hyundai manufacturer communication PDF MC-10170899-0001, bulletin 20-AT-001H: https://static.nhtsa.gov/odi/tsbs/2020/MC-10170899-0001.pdf
19. Frequently asked questions
What does Hyundai P0748 mean in the supplied evidence?
Hyundai bulletin 20-AT-001H identifies P0748/P074800 as a pressure control solenoid (PC) DTC.
Which vehicles are included in the supplied applicability data?
The supplied applicability records cover U.S. 2016–2020 Hyundai Kona and U.S. 2016–2020 Hyundai Sonata vehicles.
Does the supplied evidence identify the exact repair?
No. It directs technicians to the appropriate TSB or shop manual and does not establish a single specific repair.