Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2008 Toyota Prius owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2008 Toyota Prius. The contact stated that while driving at various speeds, the instrument panel failed to function as intended. The contact stated that the instrument panel went blank. The contact stated that the failure was intermittent at first but had become a permanent failure. In addition, the front headlights and rear taillights failed to function as intended. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired due to the cost. The contact stated that on a separate occasion, while driving at various speeds, the front headlights failed to work as intended. Upon inspection, the contact noticed that the bulbs had melted into the wiring harness. The contact stopped driving the vehicle at night. The manufacturer was not notified of the failure. The failure mileage was approximately 90,000.
Odometer Fraud. The contact purchased a 2008 Toyota Prius. The contact discovered that there was a mileage discrepancy. The vehicle was a direct purchase from the previous owner on August 3, 2025. The contact made other reports with a personal lawyer, the State Attorney General's Office, and AZ.FraudReport Agency. The contact had not heard back from the other contact regarding the other reports made. At the time of purchase, the vehicle mileage was 50,000 miles, and at the time of registration, it was discovered that the mileage was over 200,000.
The contact owns a 2008 Toyota Prius. The contact stated while driving at various speeds, the instrument panel went blank. The contact stated that the failure was intermittent at first but had become a permanent failure. The vehicle was taken to the dealer and the contact was referred to the manufacturer for assistance. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and informed the contact that there were no recalls no warranty coverage on the vehicle. The failure mileage was approximately 72,000.
The contact owns a 2008 Toyota Prius. The contact stated that while driving over a bump or rock the anti-skid warning light illuminated. The contact stated that while driving the brakes, ABS, and traction control warning lights illuminated. The contact called the local dealer but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 164,000.
Randomly my instrument panel goes blank while in motion and can only be retrieved by hard turning the car off when stopped, you loose your speedometer, lights, and all until reset. Other issue with speedometer readings that are consistently off between 5-15mph with no fix, resolutions or repairs.
About 3 years ago we started getting the red triangle of death with 2 amber lights on display the vsc and the round circle with the exclamation point in the center. This could happen in 500 miles or it could happen tomorrow. When this happens I loose all exceleration and air conditioning and a orange car emblem with an exclamation point in it on the display screen. Once safely off road press power button off and back on and everything is back to normal except red triangle and car on display screen car is then drivable again. Using a code reader to check codes no codes appear but still have red triangle. Leaving car set for a period of time and restarting car and red triangle is extinguished. Have to drive in right lane on freeway in case it wants to quit. …
I recently took my vehicle to the dealership because all the hazard lights on the dash came on. They diagnosed it as an issue with the inverter water pump and suggested that the engine was overheating, which was causing the hazard light to appear on the dashboard. So I had them replace that part and everything was fine. A week later, I went to drive to work and my entire dashboard was out. My radio, clock, blinkers, and brakes worked, but I could not see the speedometer, gas gauge, odometer or any other dashboard features. When I tried to restart the car, it wouldn't turn off. I tried several times and even got my husband to try. When we couldn't turn it off, I drove blindly straight to the dealership. They diagnosed the issue as being a problem with the combination meter. …
Hello. My 2008 Toyota Prius had a malfunction with the "combination meter" which caused the vehicle dashboard to turn off completely, and we could not turn off the engine at times when stopped and parked. The dealer fixed the problem at a cost of $1580, and both the dealer and Toyota corporate through their brand engagement advocate acknowledged a long term problem with the combination meter. They had extended the warranty coverage for owners for this specific problem for about 10 years but not for owners like me with a vehicle 15 years old. I believe Toyota should cover and reimburse owners for this problem, which is potentially dangerous, no matter the age of the vehicle, especially for long term, loyal owners. There are many of these vehicles still on the road. Thank you. [redacted] .
Trunk lock will not unlock or allow opening, back latch malfunctions, when car battery dies or car looses power you cannot open the trunk and access emergency tools/equipment and battery to jump car. You have to access by climbing through the front of the car if you are able-bodied too. There is no opening handle from the inside of the trunk to be let out, scariest and one of the most important major safety concerns, theres no emergency exit from inside vehicle. Water/snow/ice also falls down into the vehicle when opening hatchback, it slides inward from hood of car or slides back from rear windshield and door, causes water to be pooled up in my battery compartment.
In the cars digital instrument cluster have problem on the same model many of cars because I know many of friends that have same model car and I get problem so I go to the mechanic and the mechanic says it is a manufacturing problem on that same model have same problem I repair it twice and now it again appears it's also a safety concern because the problem is the light is completely go out completely blank so we are not able to see the vehicle speed vehicles fuel gas and vehicles other information that shows on digital cluster so if we drive in this condition we don't know how much speed is on my car right now
NHTSA investigations
Pedestrian alert sounds
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles.
Electrical complaints in other Prius years
Frequently asked questions
How common are electrical problems on the 2008 Toyota Prius?
NHTSA has 235 complaints about the electrical system of the 2008 Toyota Prius, 16% of the model year's 1,497 complaints. The component named most often is instrument cluster/panel (5 mentions).
Is there a recall for 2008 Toyota Prius electrical problems?
No. NHTSA lists no electrical system recall for the 2008 Toyota Prius, though it has 4 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2008 Toyota Prius electrical problems start?
Half of the complaints with a recorded mileage happened before about 82,000 miles, and 11% before 25,000 miles.
Is it dangerous?
Owners linked 8 crashes, 2 fires and 8 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.