The Lemon Index$2,600 middle bill · most between $2,200 and $3,000
Higher than the $1,200 middle bill owners of all 139 models reported.
Owners who gave their mileage: a middle of 70,000 miles (31 reports).
Toyota Sienna owners reported paying a median of $2,600 for a wiring harness repair, with the middle half of bills between $2,200 and $3,000. That's from 32 owner reports (32 complaints to NHTSA). Costs vary by shop and region.
What owners paid
- Under $5003%
- $500–$1,0006%
- $1,000–$2,50028%
- $2,500–$5,00059%
- $5,000 and up3%
Share of the 32 owner reports in each price band.
By model year
- 2004 Toyota Sienna1too few for a middle
- 2005 Toyota Sienna7$2,500 middle bill
- 2006 Toyota Sienna22$3,000 middle bill
- 2007 Toyota Sienna2too few for a middle
Reports per model year, with the middle bill where there are 3 or more. YouTube amounts count for the generation the video covers.
Engines in these years
Engines with a page of their own that this model was sold with in the years above. Owners don't always say which engine they had.
Keep going
- Toyota Sienna reliability by year
- Wiring harness repair cost on every car
- Car symptoms and what they can mean
Other repairs Toyota Sienna owners reported
Steering rack replacement (18) · Strut and shock replacement (13) · Engine replacement (12) · Transmission replacement (11) · ABS module replacement (7) · Differential repair (7) · Radiator replacement (6) · Brake repair (5) · ECM (engine computer) replacement (5) · EVAP system repair (5)
The details
How we count
Every number here is a repair bill an owner reported, never a shop's price list. Two sources: the bills owners wrote in their own complaints to the U.S. government (NHTSA), and the dollar amounts owners said out loud in YouTube repair and ownership videos. A figure counts for a repair when that repair is the part named nearest to it. Left out: purchase prices, payments, rentals, towing, warranties and deductibles, amounts under $50 or over $15,000, parts-only prices ("the part was $80 on Amazon"), bills for two different repairs named together, and money someone else paid. One number per complaint (or video) and repair: the biggest, so it's the bill, not the diagnosis fee.
The range is the middle half of the bills (the 25th to the 75th percentile), so one wild number can't swing it. Owners who complain to the government often had expensive repairs, so a typical bill can be lower. Costs vary by shop and region, by dealer vs independent shop, by parts and by miles. This is what owners reported, not a quote for your car.
Check the bills yourself
NHTSA complaint numbers (search them at nhtsa.gov): 10659034, 10547201, 10543559, 10523431, 10496890, 10495103, 10485990, 10476713, 10461259, 10460721, 10450456, 10450144 and more.
Quick answers
How much does wiring harness repair cost on a Toyota Sienna?
Toyota Sienna owners reported a median of $2,600, and the middle half paid $2,200 to $3,000, from 32 owner reports. Costs vary by shop and region.
Is a Toyota Sienna wiring harness repair more expensive than on other cars?
The Toyota Sienna middle bill of $2,600 is higher than the $1,200 owners of all 139 models we have reports for paid.
Where do these Toyota Sienna repair costs come from?
From 32 complaints to NHTSA: what owners themselves said they paid. They aren't verified bills or a shop's quote.
Sources: NHTSA owner complaints and YouTube videos (amounts said out loud), sorted by The Lemon Index. Owner reports, not a price quote. Costs vary by shop and region.