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Electrical systemPart report

2008 Toyota Prius Electrical system Problems

Complaints
235about this part
Share
16%of 1,497 total for the year
Median mileage
81,500miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 235 complaints about the electrical system of the 2008 Toyota Prius, 16% of the 1,497 complaints for this model year. Where a mileage was given, the median is 81,500 miles. 8 of these say a crash was involved and 2 a fire, according to the filers.

Example complaints

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

“This is a ridiculously dangerous car. The push button system for starting is extremely dangerous for kids. My wife loads my three year old in the Prius with her keys in her bag. The older son who is five likes cars and jumps in the drivers seat at the base of our driveway on the hill where he can start the car since she is within 10-15 feet of the car.”

NHTSA complaint #11112745, filed 2018-07, 20,000 miles

“For the third time I have had to replace my brake light switch, this is a safety issue as it affect how the brake lights work. The break light switch, when malfunctioning prevent or inhibits the vehicle from starting properly. If the switch fails while driving, it can cause problem with the battery regeneration, this is in addition to causing a driving hazard while driving.”

NHTSA complaint #11222270, filed 2019-06, 100,000 miles

“Car won't start at times. A code of p0aa6 comes on but then I cannot get a sub code (detailed code) to determine what is wrong. I have taken it to 3 dealers and 3 separate mechanics and the same thing happens. They can't retrieve a sub code to figure out what's wrong. They reset it so I can get home and the same thing happens again and I have to tow it to another place. Can't depend on this car to start.”

NHTSA complaint #11340875, filed 2020-07, 150,000 miles

“My coolant inverter pump has been recalled, and repaired before I bought the car, and the same issue is happening again after I bought the car less than a year ago. Today, the same check engine light came on, went to advanced auto parts and got the code p0a93 - coolant inverter pump failing.”

NHTSA complaint #11343344, filed 2020-08, 103,320 miles

“A lot of times when I turn the vehicle off and come back to turn it on there's no display for speed what gear I'm in mileage or fuel. The only way I seem to be able to make it work is to pop the back hatch and disconnect the main power from the battery. Sometimes I do that 20 or 30 times before it works.”

NHTSA complaint #11291137, filed 2019-12, 230,000 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2026233%
2025638%
2024415%
2023524%
2022625%
2021117%
2020214%
2019413%
201825%
20171112%
20162013%
20152716%
20143316%
20135213%
20125212%
20116813%
20101927%
20096012%
200823516%
200724812%
200615211%
200517817%
200417729%
20031313%
20021811%
20012716%

Other parts of the 2008 Toyota Prius

Exterior lighting
579 complaints
Brakes
390 complaints
Vehicle speed control
156 complaints
Other or unknown
92 complaints
Body and structure
68 complaints
Fuel system
55 complaints
Transmission and drivetrain
54 complaints
Engine
49 complaints
Electronic stability control
43 complaints
Air bags
41 complaints
Steering
18 complaints
Engine cooling
16 complaints

← All problems reported for the 2008 Toyota Prius

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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