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Maserati U0452

86 Implausible Data Received From Restraints Control Module-Signal Invalid These DTCs are associated with the red warning light on the SOS

DriveNot yet established by verified evidence. The supplied diagnostic record lists safe-to-drive status as unknown.
ChargeNot yet established by verified evidence. The supplied diagnostic record lists safe-to-charge status as unknown.
ServiceService requirement is listed as unknown in the supplied diagnostic record. Because this code is associated with a red SOS warning light, professional Maserati diagnosis is appropriate.
Confidence95%

Quick answer

For certain 2024–2025 US Maserati GranCabrio, GranTurismo, and Grecale vehicles, DTC U0452-86 is documented as “Implausible Data Received From Restraints Control Module—Signal Invalid.” Verified manufacturer communications associate this DTC with a red SOS warning light.

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 U0452 mean?

For certain 2024–2025 US Maserati GranCabrio, GranTurismo, and Grecale vehicles, DTC U0452-86 is documented as “Implausible Data Received From Restraints Control Module—Signal Invalid.” Verified manufacturer communications associate this DTC with a red SOS warning light.

2. Technical explanation

The verified evidence identifies U0452-86 as an invalid/implausible-data communication diagnostic involving the Restraints Control Module. The supplied manufacturer-communication evidence specifically states that U0452-86 is associated with the red SOS warning light. No further fault mechanism, component-level cause, or repair procedure is established by the supplied evidence.

3. What system is affected?

The evidence identifies communication data received from the Restraints Control Module and associates the DTC with the SOS warning indication. A broader system classification is not yet established by verified evidence.

4. How serious is this code?

Unknown. The supplied diagnostic record lists severity as unknown.

5. Symptoms you may notice

  • Red SOS warning light associated with U0452-86.

6. Possible causes

  • Invalid or implausible data received from the Restraints Control Module, as described by the DTC meaning.
  • A more specific underlying cause is not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence. The supplied diagnostic record lists safe-to-drive status as unknown.

8. Can I charge the vehicle?

Not yet established by verified evidence. The supplied diagnostic record lists safe-to-charge status as unknown.

9. What you can safely do

  • Arrange professional diagnosis if the red SOS warning light is present with U0452-86.
  • Do not attempt high-voltage or restraint-system repairs based on this information.

10. Step-by-step troubleshooting

  1. Have a qualified Maserati service provider confirm stored diagnostic trouble codes and evaluate the red SOS warning condition.
  2. No additional owner-level diagnostic procedure is established by verified evidence.

11. When to contact service

Service requirement is listed as unknown in the supplied diagnostic record. Because this code is associated with a red SOS warning light, professional Maserati diagnosis is appropriate.

12. What the service center may check

  • Confirm whether U0452-86 is stored.
  • Evaluate the red SOS warning condition.
  • Further specific service checks are not yet established by verified evidence.

13. Possible repair or resolution

  • A verified repair resolution is not provided in the supplied evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • MAS004919 DS 25-34, published October 23, 2025, referenced by NHTSA manufacturer communication PDF 11024684. Its supplied evidence summary lists U0452-86 and states that these DTCs are associated with the red SOS warning light.
  • MAS004818 DS 25-24, published July 31, 2025, referenced by NHTSA manufacturer communication PDF 11021161. Its supplied evidence summary lists U0452-86 and states that these DTCs are associated with the red SOS warning light.

16. Recall information

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

17. Official manufacturer information

Official NHTSA-hosted manufacturer communications: https://static.nhtsa.gov/odi/tsbs/2025/MC-11024684-0001.pdf and https://static.nhtsa.gov/odi/tsbs/2025/MC-11021161-0001.pdf

19. Frequently asked questions

What does Maserati code U0452-86 mean?

The supplied verified record defines it as “Implausible Data Received From Restraints Control Module—Signal Invalid.”

What warning is associated with U0452-86?

The supplied official manufacturer-communication summaries associate this DTC with the red SOS warning light.

Which vehicles are covered by the supplied applicability evidence?

US-market 2024–2025 Maserati GranCabrio, GranTurismo, and Grecale vehicles.

Is it safe to drive or charge with U0452-86?

Not yet established by verified evidence; both safe-to-drive and safe-to-charge statuses are listed as unknown.

20. Sources & verification

ReferenceVerified
Maserati U0452: 86 Implausible Data Received From Restraints Control… | EV Diagnostics