2006 Toyota Highlander Hybrid problems & reliability
370 owner complaints filed with NHTSA for the 2006 Toyota Highlander Hybrid, alongside 6 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
6 complaints report injuries (10 injured, 2 deaths reported).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Service Brakes | 76 | 21% |
| Electrical System | 74 | 20% |
| Hybrid Propulsion System | 45 | 12% |
| Service Brakes, Hydraulic | 42 | 11% |
| Vehicle Speed Control | 33 | 9% |
| Engine and Engine Cooling | 28 | 8% |
| Engine | 25 | 7% |
| Steering | 25 | 7% |
| Electronic Stability Control (esc) | 24 | 6% |
| Service Brakes, Electric | 21 | 6% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 97,479 miles (middle 50% between 52,375 and 135,000 miles), based on 324 complaints that included mileage.
Complaints by incident year
What owners report
“The contact owns a 2006 Toyota Highlander Hybrid. The contact stated that while driving 72 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine and traction control warning lights were illuminated. Additionally, the "Check Hybrid System", "Check AWD", and "Check…”
Hybrid Propulsion System · filed Jan 15, 2026
“The contact owns a 2006 Toyota Highlander Hybrid. The contact stated while driving 65 MPH, the vehicle stalled with the check hybrid system and two other unknown warning lights illuminated. The contact managed to coast the vehicle to the side of the highway; however, the vehicle failed to restart. Due to the failure…”
Hybrid Propulsion System · filed Jan 17, 2023
“We were driving down the highway I-30 east up a hill going appt 70 mph when the car went into limp mode and slowed down to 10 mph. Then went to only 1 mph. We checked the battery connection, fuel cap, everything we found online to check.”
Vehicle Speed Control · filed Jan 26, 2020
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Pedestrian alert sounds
Defect Petition DP22005 · opened Jan 27, 2023 · closed Aug 7, 2023 · led to recall 22V063000
- Hybrid inverter failure - vehicle stall
Preliminary Evaluation PE11005 · opened Feb 15, 2011 · closed Jul 20, 2011 · led to recall 11V342000
- Unintended and Uncontrolled Acceleration
Recall Query RQ10003 · opened Feb 16, 2010 · closed Mar 1, 2011 · led to recall 11V115000
Technical service bulletins
78 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2006 Toyota Highlander Hybrid. The 10 most recent:
This bulletin includes basic procedures for performing a rescue charge on Ni-MH high voltage (HV) batteries. This bulletin should be used in conjunction with the applicable model and model year Repair Manual while…
T-SB-0009-26 · Service Bulletin/Repair Instructions · issued Feb 13, 2026
OBSOLETE NOTICE February 13, 2026: This bulletin is now obsolete. Please see T-SB-0009-26.
T-SB-0119-15 Rev2 · Service Bulletin/Repair Instructions · issued Feb 13, 2026
Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The…
T-SB-0055-24 Rev2 · Service Bulletin/Repair Instructions · issued Jan 7, 2026
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and…
T-SB-0039-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 6, 2024
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from…
T-SB-0038-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 6, 2024
Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal…
T-SB-0035-24 Rev2 · Service Bulletin/Repair Instructions · issued Dec 6, 2024
Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow…
T-SB-0061-23 Rev2 · Service Bulletin/Repair Instructions · issued Dec 5, 2024
Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can…
T-SB-0062-23 Rev2 · Service Bulletin/Repair Instructions · issued Dec 3, 2024
Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The…
T-SB-0055-24 Rev1 · Service Bulletin/Repair Instructions · issued Jul 29, 2024
Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The…
T-SB-0055-24 Rev1 · Service Bulletin/Repair Instructions · issued Jul 29, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2006 Toyota Highlander Hybrid has 6 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2006 Toyota Highlander Hybrid?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 97,479 miles — budget accordingly if the car is approaching that mileage.