2006 Toyota Prius problems & reliability
1,439 owner complaints filed with NHTSA for the 2006 Toyota Prius, 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.
38 complaints report injuries (48 injured, 1 deaths reported).
Federal crash records (FARS 2020–2023): 2006 Toyota Prius vehicles were involved in 29 fatal crashes with 15 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Exterior Lighting | 941 | 65% |
| Electrical System | 152 | 11% |
| Service Brakes, Hydraulic | 94 | 7% |
| Vehicle Speed Control | 84 | 6% |
| Service Brakes | 73 | 5% |
| Service Brakes, Electric | 45 | 3% |
| Air Bags | 30 | 2% |
| Engine | 25 | 2% |
| Unknown OR Other | 25 | 2% |
| Power Train | 22 | 2% |
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 50,000 miles (middle 50% between 36,575 and 77,000 miles), based on 1,228 complaints that included mileage.
Complaints by incident year
What owners report
“I was involved in an auto accident on 4/20/2026 @ 6:23 PM. I was driving a 2006 Prius and the vehicle in front of me stopped to make a left turn. I applied my brakes, which grabbed slightly and then released. I then had to hit the brakes hard and they did the same thing again. I ended up rear-ending the vehicle in…”
Service Brakes · filed May 7, 2026
“I am looking to receive a little bit more assistance regarding my daughter's first car that she worked very hard for. It is a 2006 Toyota Prius. It was garage-kept and owned by an older couple who only put 85,000 miles on it. It is really a gem of a car. Soon after we registered the car, my daughter was out driving…”
Service Brakes · filed Mar 13, 2026
“The contact owned a 2006 Toyota Prius. The contact stated that while slowly driving into an intersection and turning left at less than 3 MPH, the owner of a Ford F-150 coming from the driver's side of the vehicle at 35 MPH crashed into their driver's side door. The crash caused the vehicle to slide to a complete stop…”
Air Bags · filed Oct 6, 2025
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
- Intermediate Steering Shaft Separation
Defect Petition DP13001 · opened Feb 21, 2013 · closed Apr 8, 2020
- HEADLIGHT FAILURE
Preliminary Evaluation PE09019 · opened Apr 17, 2009 · closed Aug 27, 2009
Technical service bulletins
210 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2006 Toyota Prius. 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 Prius 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 Prius?
- · 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 50,000 miles — budget accordingly if the car is approaching that mileage.