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Electrical systemPart report

2006 Toyota Highlander Electrical system Problems

Complaints
26about this part
Share
9%of 278 total for the year
Median mileage
90,000miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 26 complaints about the electrical system of the 2006 Toyota Highlander, 9% of the 278 complaints for this model year. Where a mileage was given, the median is 90,000 miles.

Example complaints

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

“While driving my vehicle all the lights on my dashboard illuminated. My vehicle lost power and I had to pull over. It died there. I was on belfield ave and gratz street in philadelphia, pa . I subsequently had it towedback to my residence.”

NHTSA complaint #11385175, filed 2020-12, 174,000 miles

“The passenger windows continually stick in the down position. I have taken my Highlander to Toyota several times and paid hundreds of dollars in repairs. Also, the fob quit working on the driver door. I think there might be an electrical issue in the doors.”

NHTSA complaint #11089665, filed 2018-04, 10,000 miles

“Our 2006 Toyota Highlander hybrid would not start on several occasions. The car had been running for some time , turned off for 5 minutes and then it would not restart. After sitting for a few hours it restarted. Some times it had to be jumped and the code read shift to park even though it was already in park. I took it in and everything checked out and of course they said that they never heard of this happening before.”

NHTSA complaint #10651945, filed 2014-11, 100,000 miles

“Re: 2006 Toyota Highlander hybrid 2wd SUV 29,500 miles. Upon entering a highway I experienced total failure of the hybrid system in my SUV, which slowly drifted to a halt, nearly causing several accidents. The nearest dealership replaced the inverter portion of the hybrid system. It was covered under warranty but I was told that had it not been covered it would have cost me between $9,000 and $10,000! Or about 1/4 the cost of the entire vehicle new!”

NHTSA complaint #10339669, filed 2010-06, 29,500 miles

“While in the mountains in heavy traffic, the vehicle all the vehicle warning lights went on and the vehicle shutdown. While negotiating the vehicle to the side of the road, I barely avoided an an accident with another vehicle. I turned the vehicle off and it restarted and drove it to a mechanic who disconnected the battery and all of the vehicle warning lights disappeared and it drove fine. It has happened twice since including today (july 7, 2015). Was told by mechanic that it was likely an inverter that would cost about $10,000. …”

NHTSA complaint #10732511, filed 2015-07, 175,000 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2025110%
2024614%
2023126%
2022239%
2021285%
2020186%
20195611%
2018249%
20174617%
20161413%
20155227%
20143526%
20132613%
20122916%
20112313%
20105325%
20092015%
20084411%
20072319%
2006269%
20052511%
2004186%
2003156%
2002134%
200154%

Other parts of the 2006 Toyota Highlander

Brakes
102 complaintsVehicle speed control
43 complaintsVisibility (wipers, defrost, mirrors)
24 complaintsTransmission and drivetrain
22 complaintsEngine cooling
21 complaintsEngine
19 complaintsSteering
16 complaintsAir bags
12 complaintsElectronic stability control
12 complaintsFuel system
12 complaintsOther or unknown
10 complaintsExterior lighting
7 complaints

← All problems reported for the 2006 Toyota Highlander

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