2018 Toyota Prius Electrical Problems
2 owner-reported electrical complaints from NHTSA data
Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.
Electrical Recalls (1)
ELECTRICAL SYSTEM:WIRING
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2016-2018 Toyota Prius vehicles. A portion of the engine wire harness connected to the hybrid Power Control Unit (PCU), could contact the cover at this connection and wear, causing an electrical short circuit.
Fix: Toyota will notify owners, and dealers will inspect the engine wire harness assembly and replace it if damage is found. A protective sleeve or protective tape will be included to prevent any future damage. These repairs will be performed free of charge. The recall began October 30, 2018. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is J0T.
Owner Complaints (2)
Your Prius displayed multiple warning lights and error codes (P0113, P0102) related to fuel efficiency, emissions, and safety systems when you started it in a 55°F garage. Toyota dealers refused to diagnose the problem under warranty without charging a service fee, even though your 12-volt battery—which may be causing these codes—is covered by your 3-year/36,000-mile warranty. The fix will likely involve testing and possibly replacing the 12-volt battery, which can trigger multiple error codes when it's failing.
Parts you may need:
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Your driver's door lock actuator has stopped working, so the power lock no longer functions. You now have to use the physical key from your key fob to manually unlock the door. This could be a safety concern if you need to enter your vehicle quickly in an emergency situation.
Parts you may need:
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