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Electrical systemPart report

2015 Toyota Sequoia Electrical system Problems

Complaints
2about this part
Share
22%of 9 total for the year
Median mileage
11,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the electrical system of the 2015 Toyota Sequoia, 22% of the 9 complaints for this model year. Where a mileage was given, the median is 11,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Wiring harness was chewed on by rodent. Toyota will not pay for fixing brand new vehicle. Found several other complaints online after Toyota has moved to plant-based materials for wiring harnesses. Having electrical issues with vehicle with only 11k miles.”

NHTSA complaint #10855227, filed 2016-04, 11,000 miles

“The vehicle is a 2015 Toyota Sequoia with the 5.7L V8 engine and approximately 192,632 miles. The vehicle developed an abnormal internal engine/timing noise, especially when warm. An authorized Toyota dealer inspected the vehicle and diagnosed an internal engine/timing-related condition involving timing chain tensioners, timing chains, chain guides, camshaft gears, lifters, gaskets/resealing, and related labor. The estimated repair cost is approximately $19,716. …”

NHTSA complaint #11744827, filed 2026-06

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2018735%
2017114%
2016327%
2015222%
2014212%
201318%
2012525%
2011212%
2010413%
2009117%
200857%
2007129%
2006178%
20053410%
2004349%
20036612%
2002426%
2001316%

Other parts of the 2015 Toyota Sequoia

Air bags
2 complaints
Vehicle speed control
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Electronic stability control
1 complaints
Latches, locks and linkages
1 complaints
Other or unknown
1 complaints
Seat belts
1 complaints
Tires
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2015 Toyota Sequoia

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology