YearToAvoid

2006 Toyota Highlander Hybrid Reliability Data: Problems & Recalls

Avoid The 2006 Toyota Highlander Hybrid ranks worst among 21 model years, with a complaint index of 100 and 370 complaints, mostly about brakes. NHTSA lists 6 recalls for this year, and it carries an Avoid verdict relative to other Highlander Hybrid years.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
100/100
#1 of 21 Highlander Hybrid years
Verdict
Avoid
vs. other years of this model
Complaints
370
unique NHTSA reports
Recalls
6
distinct NHTSA campaigns
Crashes
34
reported in complaints
Fires
7
Injuries
10
Top issue
Brakes
Best nearby year
2011
rated Good
NHTSA overall rating
Not rated
EPA combined MPG
26.5
27.5 city / 25 hwy
Injuries / deaths
10 / 2

Top 2006 Toyota Highlander Hybrid problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

  1. Brakes151 (41%)
  2. Electrical System89 (24%)
  3. Engine81 (22%)
  4. Fuel System53 (14%)
  5. Steering25 (7%)
  6. Transmission & Powertrain19 (5%)
  7. Other10 (3%)
  8. Visibility & Wipers10 (3%)
  9. Airbags9 (2%)
  10. Suspension, Wheels & Tires7 (2%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Owners report the brakes losing pressure or failing to grab when slowing down at low speeds, sometimes on hills.
  • Some describe the ABS not engaging until the vehicle reaches a certain speed, causing rear-end collisions in stop-and-go traffic.
  • Several complaints describe sudden unintended acceleration while backing up or parking, in some cases striking pedestrians.
  • One owner reported an engine fire with smoke and flames after driving up a steep hill.
  • A driver reported the vehicle losing all power on icy or slippery surfaces, including while entering a freeway.
  • One report describes frontal airbags failing to deploy in a head-on crash into a concrete light pole.
2006 Toyota Highlander Hybrid complaints: complaints filed per quarter582006 Q12008 Q42010 Q42012 Q32014 Q22016 Q12017 Q42019 Q3
370 complaints filed with NHTSA from 2006 Q1 to 2026 Q1; peak 2010 Q1 (58).

2006 Toyota Highlander Hybrid recalls

6 NHTSA recall campaigns list this model year.

  1. NHTSA 13V396000Sep 4, 2013Fuel System133,081 vehicles

    Hybrid propulsion system: inverter

    Toyota is recalling certain model year 2006-2010 Highlander hybrid vehicles manufactured February 16, 2005, through July 29, 2010; and model year 2006-2008 Lexus RX400h vehicles manufactured February 23, 2005, through December 2, 2008. The Intelligent Power Module (IPM) inside the inverter module may contain transistors that have higher operating temperatures than the solder can support and the transistors may be heat damaged by the solder. If this occurs, various warning lamps, including the malfunction indicator lamp, slip indicator light, brake system warning light, and master warning light, will be illuminated on the instrument panel.

    Risk: The vehicle may enter a fail-safe/limp-home mode that limits the drivability of the vehicle. It is possible that the hybrid system will shut down while the vehicle is being driven, causing the vehicle to stall unexpectedly, increasing the risk of a crash.

    Remedy: Toyota will notify owners, and dealers will replace the IPM free of charge. Owners may contact Toyota at 1-800-331-4331. Vehicles that had their IPM replaced under recall 11V-342 are not affected by this campaign.

  2. NHTSA 11V539000Nov 9, 2011Engine420,326 vehicles

    Engine and engine cooling

    Toyota is recalling certain model year 2004 avalon vehicles; 2004 and 2005 camry, camry solara, highlander, and sienna vehicles, 2006 highlander hybrid; 2004 and 2005 lexus es330 and rx330; and 2006 lexus rx400h vehicles manufactured from june 1, 2004 through march 31, 2005, equipped with the 1mz-fe or 3mz-fe engine. The amount of adhesive agent applied between the outer ring and the torsional rubber damper (inner ring) in the crankshaft pulley may be inadequate. If the adhesive is insufficient, there is a possibility that the outer ring may become misaligned and it may not properly rotate with the inner ring, causing noise and/or illumination of the battery discharge indicator light.

    Risk: In some cases, the belt for the power steering pump may become detached from the pulley which could result in a loss of power steering and a sudden increase in steering effort, increasing the risk of a crash.

    Remedy: Toyota will notify owners, and dealers will check the crankshaft pulley to identify whether it was produced by the u.s. Supplier. If so, the dealer will replace the pulley with a new one at no charge. The safety recall is expected to begin during early january 2012. Owners may contact toyota at 1-800-331-4331.

  3. NHTSA 11V342000Jun 29, 2011Electrical System82,273 vehicles

    Electrical system

    Toyota is recalling certain model year 2006-2007 highlander hybrid and lexus rx400h passenger cars manufactured from february 16, 2005, through august 30, 2006. A module inside the inverter module may contain inadequately soldered transistors that during high-load driving, may be damaged by heat caused by the large current. If this occurs, various warning lamps, including the malfunction indicator lamp, slip indicator light, brake system warning light, and master warning light, will be illuminated on the instrument panel.

    Risk: The vehicle may enter a fail-safe/limp-home mode that limits the drivability of the vehicle. It is possible that the hybrid system will shut down while the vehicle is being driven, causing the vehicle to stall unexpectedly, increasing the risk of a crash.

    Remedy: Toyota/lexus mailed an interim owner notification on july 19, 2011 to advise owners of this recall and the fact that they will receive a future notice when parts become available to complete repairs. Toyota dealers will inspect the hybrid inverter production number to determine whether the inverter contains suspect transistors and replace the module free of charge. Owners may contact toyota at 1-800-331-4331.

See all 6 recalls for the 2006 Toyota Highlander Hybrid →

2006 Toyota Highlander Hybrid fuel economy and fuel cost

City
27.5 MPG
Highway
25 MPG
Combined
26.5 MPG
Annual fuel cost (EPA)
$2,450
15,000 mi/yr
Fuel
Regular
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2006 compared with other Highlander Hybrid years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’05’06’07’08’09’10’11’12’13’14’15’16’17’18’19’20’21’22’23’24’25
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2005No verdict1011—
2006Avoid100370626.5
2007Avoid90110226
2008Avoid95197626

All Toyota Highlander Hybrid years: best and worst →

Frequently asked questions

Is the 2006 Toyota Highlander Hybrid reliable?
Based on NHTSA owner complaints and recalls, the 2006 Highlander Hybrid ranks worst of 21 model years, with a complaint index of 100 and 370 complaints, mostly brake-related. It carries an Avoid verdict relative to other years of this model.
What year Toyota Highlander Hybrid should I avoid?
The 2006 model year has the highest complaint index (100) and the most complaints (370) among all Highlander Hybrid years, and it tops the worst-first ranking.
Does the 2006 Highlander Hybrid have brake problems?
Yes. Brakes are the top problem area, with 151 complaints (41% of all complaints for this year), 15 crashes, and a median failure mileage of 90,000 miles.
Does the 2006 Highlander Hybrid have any recalls?
NHTSA lists 6 recall campaigns for the 2006 Highlander Hybrid, covering the fuel system, engine, and electrical system, including an inverter module replacement and floor carpet clip fixes.
How many fires and injuries were reported for the 2006 Highlander Hybrid?
NHTSA data shows 7 fire reports, 10 injuries, and 2 deaths tied to complaints for the 2006 Highlander Hybrid.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.