2015 Toyota Sienna Electrical System Problems
NHTSA component category: ELECTRICAL SYSTEM · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How electrical system ranks on this vehicle
Share of the 227 complaints citing each category; one complaint can cite several. Full breakdown on the 2015 Toyota Sienna overview page.
What owners report
“2015 TOYOTA SIENNA. CONSUMER WRITES IN REGARDS TO VEHICLE FIRE.”NHTSA complaint 11131288 — filed 10/02/2018
“WHEN I GET INTO THE SIENNA IN A PARKING SPOT (STATIONERY) AND TWIST THE KEY IN THE IGNITION THE VEHICLE STARTS BUT THE ELECTRONIC STEERING…”NHTSA complaint 11097977 — filed 05/25/2018
“NAVIGATION SYSTEM AND SCREEN IS BEEN OFF AND RESTARTED WHILE DRIVING SINCE ONE YEAR AGO.SOME RAINY DAY THAT HAPPENED 4~5 TIMES IN HOUR.GETTING WORSE!!”NHTSA complaint 11074549 — filed 02/23/2018
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Electrical System complaints by year filed
Frequently asked questions
Does the 2015 Toyota Sienna have electrical system problems?
Electrical System is the #3 most-reported problem area on the 2015 Toyota Sienna: 41 of 227 complaints on file (18.1%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2015 Toyota Sienna have in total?
227 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 17 involved a crash, 7 involved a fire, 28 reported injuries, and none reported deaths.
What does NHTSA's electrical system category include?
NHTSA assigns each complaint to standard component categories; this page reports the ELECTRICAL SYSTEM category exactly as NHTSA defines and records it.
