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Voltage Auto Service specializes in advanced hybrid, plug-in hybrid and EV diagnostics. Schedule an appointment to have the fault properly tested before replacing parts.

2018 Toyota RAV4 Hybrid Limited – Sunroof Opens by Itself With Ignition Off

  • Aug 17
  • 1 min read

CUSTOMER CONCERN

The sunroof intermittently opens by itself while the ignition is off.

CAUSE

Blocked sunroof drains allowed water into the moon-roof control unit, causing internal corrosion and unintended roof operation.

CORRECTION

Remove and replace the corroded moon-roof control unit, clear the blocked sunroof drains, and verify the roof remains closed with the ignition off and operates normally on command.

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