2008 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 428 complaints citing each category; one complaint can cite several. Full breakdown on the 2008 Toyota Sienna overview page.
What owners report
“RIGHT REAR POWER SLIDING DOOR ON 2005 TOYOTA SIENNA LXE MALFUNCTIONED. DEALER QUOTED NEARLY $1000.00 TO FIX. RIDICULOUS. HAD DEALER DISCONNECT SYSTEM (OVER $70.00) AND…”NHTSA complaint 10447109 — filed 02/08/2012
“THE RUBBERIZED SURFACE OF THE REAR DOOR LATCH HAS DISSOLVED INTO GOO. I ASSUME THAT HEAT FROM AN ELECTRICAL SHORT MELTED THE RUBBER. THUS, TWO…”NHTSA complaint 10428410 — filed 10/04/2011
“I ARRIVED AT WORK AND USED THE INTERIOR PUSH BUTTON TO OPEN THE POWER DOOR ON THE DRIVER SIDE OF MY VAN AFTER EXITING THE…”NHTSA complaint 10426842 — filed 09/22/2011
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Electrical System complaints by year filed
Frequently asked questions
Does the 2008 Toyota Sienna have electrical system problems?
Electrical System is the #3 most-reported problem area on the 2008 Toyota Sienna: 42 of 428 complaints on file (9.8%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2008 Toyota Sienna have in total?
428 complaints were on file with NHTSA as of 07/12/2026. Across all categories, 37 involved a crash, 4 involved a fire, 19 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.
