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Toyota U0265

2021 model year Highlander, Highlander Hybrid, RAV4, and RAV4 Hybrid; and 2021 model year RAV4 Prime vehicles equipped with Premium Audio (version 1383) may experience the followin

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Toyota dealer or qualified Toyota service provider to evaluate intermittent U0265 and determine applicability of T-SB-0019-21 Rev.
Confidence95%

Quick answer

For certain Toyota vehicles with Premium Audio, U0265 is documented by Toyota as an intermittent DTC that may occur with multimedia-system software concerns. The supplied evidence does not establish a high-voltage, propulsion, charging, or safety fault.

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 U0265 mean?

For certain Toyota vehicles with Premium Audio, U0265 is documented by Toyota as an intermittent DTC that may occur with multimedia-system software concerns. The supplied evidence does not establish a high-voltage, propulsion, charging, or safety fault.

2. Technical explanation

Toyota Technical Service Bulletin T-SB-0019-21 Rev. documents intermittent U0265 among several DTCs that may be present on affected vehicles equipped with Premium Audio version 1383. The bulletin concerns an Audio Head Unit Software Update (Denso-Ten). The evidence associates U0265 with multimedia-related behavior, not with a confirmed EV powertrain or battery-system failure.

3. What system is affected?

Premium Audio / Audio Head Unit (Denso-Ten) multimedia system.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Intermittent U0265 may be stored.
  • The bulletin also documents multimedia-related concerns including charging-screen operation concerns, missing audio information on the meter Audio tab, HVAC display or control delays/inconsistencies, and Bluetooth/Android Auto reconnection or audio behavior. The supplied evidence does not establish that every listed concern occurs with U0265.

6. Possible causes

  • Toyota’s supplied bulletin identifies the subject of the remedy as an Audio Head Unit Software Update (Denso-Ten).
  • A specific root cause for U0265 is not yet established by the supplied 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 any displayed messages and the conditions under which they occur.
  • Have a Toyota dealer or qualified service provider verify stored codes and applicable multimedia software information.
  • Do not attempt high-voltage-system repairs; no high-voltage repair procedure is established by the supplied evidence.

10. Step-by-step troubleshooting

  1. Confirm whether the vehicle is within the documented applicability and has Premium Audio version 1383.
  2. Check whether U0265 is intermittent and whether the multimedia-related behaviors documented in Toyota T-SB-0019-21 Rev. are present.
  3. Use the Toyota bulletin and vehicle identification information to determine whether the Audio Head Unit Software Update applies.

11. When to contact service

Contact a Toyota dealer or qualified Toyota service provider to evaluate intermittent U0265 and determine applicability of T-SB-0019-21 Rev.

12. What the service center may check

  • Verify vehicle model year, model, region, audio configuration, and installed multimedia software version.
  • Check for intermittent DTCs listed in the bulletin, including U0265.
  • Determine whether the Audio Head Unit Software Update (Denso-Ten) specified by Toyota is applicable.

13. Possible repair or resolution

  • Toyota T-SB-0019-21 Rev. concerns an Audio Head Unit Software Update (Denso-Ten).
  • The exact repair outcome for an individual vehicle is not yet established by the supplied verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Toyota T-SB-0019-21 Rev. — Audio Head Unit Software Update (Denso-Ten); published through NHTSA manufacturer communications, including MC-10204562 and MC-10201369.
  • The supplied evidence describes affected 2020–2022 Highlander, Highlander Hybrid, RAV4, and RAV4 Hybrid vehicles, plus 2021 RAV4 Prime vehicles equipped with Premium Audio version 1383. Applicability records also include US-market 2021–2022 Prius Prime and 2021–2022 RAV4 Prime; the supplied bulletin excerpt does not establish the bulletin’s detailed applicability for Prius Prime or 2022 RAV4 Prime.

16. Recall information

  • No recall is established by the supplied verified evidence.

17. Official manufacturer information

Official source: Toyota T-SB-0019-21 Rev., available through NHTSA manufacturer communication records MC-10204562 and MC-10201369.

19. Frequently asked questions

What does U0265 mean in this evidence?

It is listed by Toyota as an intermittent DTC in T-SB-0019-21 Rev. in connection with Premium Audio multimedia-system concerns.

Is U0265 confirmed to be a hybrid, EV battery, or charging-system fault?

No. The supplied evidence does not establish U0265 as a high-voltage battery, propulsion, or charging-system fault.

Does Toyota document a service action?

Yes. The cited Toyota bulletin concerns an Audio Head Unit Software Update (Denso-Ten).

Is this a recall?

No recall is established by the supplied verified evidence.

20. Sources & verification

ReferenceVerified
Toyota U0265: 2021 model year Highlander, Highlander Hybrid, RAV4, and… | EV Diagnostics