2012 Toyota Prius C problems, complaints & recalls
Most-reported problem areas: Service Brakes (24) · Electrical System (4) · Vehicle Speed Control (3)
🧭 Reliability snapshot
Compared against other Toyota Prius C model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
37 NHTSA complaints that reported an odometer reading.
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (366)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-02-13 · T-SB-0009-26 · Service Bulletin/Repair Instructions
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 performing a rescue charge. the grx-5100 should be used wherever the repair manual ref
Engine 2026-02-13 · T-SB-0119-15 Rev2 · Service Bulletin/Repair Instructions
obsolete notice february 13, 2026: this bulletin is now obsolete. please see t-sb-0009-26.
Unknown Or Other 2026-01-07 · T-SB-0055-24 Rev2 · Service Bulletin/Repair Instructions
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 purpose of this service bulletin is to provide general guidelines and procedures
Structure:body 2024-12-06 · T-SB-0039-24 Rev2 · Service Bulletin/Repair Instructions
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 remain on a painted vehicle surface, especially the horizonal areas of the hood, roof,
Structure:body 2024-12-06 · T-SB-0038-24 Rev2 · Service Bulletin/Repair Instructions
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 weather elements and initial rust before the vehicle is delivered to the customer.
Structure:body 2024-12-06 · T-SB-0035-24 Rev2 · Service Bulletin/Repair Instructions
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 areas such as the hood, roof, and decklid, significant damage to the painted surfa
Showing the 6 most recent of 366 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-13 · Power Train · 165,000 mi · 💥 crash“the contact owned a 2012 toyota prius c. the contact stated that while attempting to park, the vehicle rapidly accelerated upon tapping the brake pedal and crashed into a brick storefront without warning. the air bags failed to deploy upon impact. a bystander inside the store assisted the contact in exiting the vehicle. law enforcement responded to…”
2026-03-05 · Electrical System:propulsion System:inverter · 98,015 mi“the contact owns a 2012 toyota prius c. the contact stated that while driving 20 mph, the message "check hybrid status - stop vehicle in safe place immediately" was displayed. there were several warning lights illuminated. the vehicle was towed to the local dealer, where it was diagnosed with an internal power module transmitter and mg control comp…”
2026-01-21 · Service Brakes“while driving 65 mph on the expressway on january 12th, 2026 under cruise control, i tapped my brakes to slow down. my brake warning light came on, along with the abs warning light, and the anti-swerve warning light. cruise control no longer worked, and my brakes were noticeably hard to apply. i immediately had the vehicle computer checked and the …”
2025-12-29 · Service Brakes“brakes went soft with little braking power. traced the fault code to a faulty braking actuator; toyota says this is past the coverage date for the recall.…”
2025-08-18 · Service Brakes“i own a 2012 toyota prius c with approximately 156,578 miles. the vehicle has been diagnosed with c1391 – abnormal leak in accumulator, which causes the brake actuator to lose hydraulic pressure. this results in frequent buzzing from the actuator pump, illuminated warning lights (brake, abs, traction control), and loss of abs and stability control.…”
2025-07-15 · Service Brakes“brake actuator and abs accumalator failed. it is a common failure reported by multiple owners on these cars. i was on the high way going 70 when it failed and lost any brake boost i had putting me in a very dangerous situation where i narrowly avoided an accident. upon scanning the car's codes i got code c1391 which i looked up and saw a bunch of o…”
2025-06-02 · Service Brakes“i am writing to express a complaint regarding the issues i have experienced with the brake system of my toyota prius c, 2012 model. for the past several months, i have noticed that the brakes exhibit strange noises, soft pedal sensation, reduced braking efficiency, were driving and the abs, traction, brake, and that other light turned on and the br…”
2025-02-18 · Service Brakes“the brakes on this prius started to make weird noises. because it is a hybrid, i wasn't sure if it was normal. after searching online, it is a known issue. the car has just under 76,000 miles on it. it might be worth $7000 on a good day. toyota wants to replace two brake parts, numbered 47050-52020 and 04006-74152 to a tune of $2700. according to …”
2025-01-26 · Service Brakes“my abs actuator failed. turns off the boosted braking and cruise control. this is a known issue in toyotas and it always happens outside the warranty window. this is putting my safety at risk as the brakes don’t work as they’re supposed to…”
2024-12-11 · Service Brakes“i was driving down the interstate with my cruise control on when all of a sudden the cruise control disabled and warning lights came up on my dash board. it still drove fine for several weeks. on friday december 6th, i was going down the road and had to press the brake slightly for a car turning. when i pressed the brake, the car went into a spin. …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.