2015 Toyota Prius Electrical System Problems
NHTSA component category: ELECTRICAL SYSTEM · data through 07/12/2026
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 159 complaints citing each category; one complaint can cite several. Full breakdown on the 2015 Toyota Prius overview page.
What owners report
“Got the warning code for C1391 for the brake booster. It failed at 140k miles but because it failed past the 10 year mark did…”NHTSA complaint 11688952 — filed 09/22/2025
“The headlight bulbs keep going out. I have replaced the bulbs at least 2-3 times a year for the past few years. I have asked…”NHTSA complaint 11642400 — filed 02/13/2025
“When I parked my car and stopped the engine after driving for 90 min/62 miles on June 22, 2023, I found that I couldn't lock…”NHTSA complaint 11528465 — filed 06/23/2023
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 Prius have electrical system problems?
Electrical System is the #2 most-reported problem area on the 2015 Toyota Prius: 25 of 159 complaints on file (15.7%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2015 Toyota Prius have in total?
159 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 27 involved a crash, 1 involved a fire, 16 reported injuries, and 3 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.
