2006 Toyota Sienna 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 1,016 complaints citing each category; one complaint can cite several. Full breakdown on the 2006 Toyota Sienna overview page.
What owners report
“I AM WITH A FAMILY OF FOUR HEAD TO RENO. I HAVE FOUR YEAR AND THREE YEAR OLD SON. WE STOP BY THE GAS STATION…”NHTSA complaint 10259380 — filed 02/19/2009
“THE CONTACT OWNS A 2006 TOYOTA SIENNA. WHILE DRIVING DOWNHILL AT VARIOUS SPEEDS, THE CONTACT HAS TO APPLY THE BRAKES. THE TRANSMISSION DOWNSHIFTS AND FAILS…”NHTSA complaint 10211333 — filed 12/10/2007
“THE LCD DISPLAY ON THE CD/RADIO GETS GARBLED WHENEVER THE VEHICLE IS IDLING AND THE A/C IS SET TO MAX. ALL OCCURRENCES WHERE WHEN THE…”NHTSA complaint 10164564 — filed 08/04/2006
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Electrical System complaints by year filed
Frequently asked questions
Does the 2006 Toyota Sienna have electrical system problems?
Electrical System is the #4 most-reported problem area on the 2006 Toyota Sienna: 81 of 1,016 complaints on file (8%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2006 Toyota Sienna have in total?
1,016 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 37 involved a crash, 2 involved a fire, 53 reported injuries, and 1 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.
