2018 Toyota PRIUS problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
36 owner complaints analyzed
1 distinct recall campaigns
10,000 mi median reported failure mileage
Scope: 2018 model year. Data snapshot: . 25 complaints include usable failure mileage.
Most common problems
Exterior Lighting is the most frequently named component, appearing in 5 of 36 complaints (13.9%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 5 | 13.9% |
| Electrical and battery issues | 5 | 13.9% |
| Engine operation | 1 | 2.8% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Exterior Lighting | 5 |
| Unknown Or Other | 5 |
| Visibility/Wiper | 5 |
| Vehicle Speed Control | 4 |
| Air Bags | 3 |
| Service Brakes | 3 |
| Structure:Body | 3 |
| Electrical System | 2 |
Exterior Lighting: 5; Unknown Or Other: 5; Visibility/Wiper: 5; Vehicle Speed Control: 4; Air Bags: 3; Service Brakes: 3; Structure:Body: 3; Electrical System: 2
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 16 |
| 25,000 to 49,999 | 4 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 2 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 2 |
Under 25,000: 16; 25,000 to 49,999: 4; 50,000 to 74,999: 1; 75,000 to 99,999: 2; 100,000 to 149,999: 0; 150,000 and above: 2
Under 25,000 miles has the most reports with usable mileage (16). 11 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2018 | 9 |
| 2019 | 9 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 4 |
| 2026 | 3 |
2018: 9; 2019: 9; 2020: 2; 2021: 2; 2022: 2; 2023: 3; 2024: 2; 2025: 4; 2026: 3
Pattern summary
Exterior Lighting leads the component reports. Braking behavior appears in 5 complaint narratives. Electrical and battery issues appears in 5 complaint narratives. Engine operation appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11074394 · 2018-02-22 (February 22, 2018)
THE GEAR WOULD SHIFT EITHER FROM 'DRIVE TO NEUTRAL' OR 'REVERSE TO NEUTRAL' THIS HAPPENED MORE THAN 10 TIMES WHEN I HAD MY SISTER, MOTHER, AND FATHER IN THE CAR. 1) IT HAPPENED WHEN I WAS PULLING OUT OF THE GARAGE (ABOUT 20 DEGREE ANGEL) GOING UP THE HILL. I WENT TO PICK THEM UP, ALL 3 PF THEM WENT IN. I HAD MY FOOT ON THE BRAKE AND GEAR ON DRIVE, WHEN I LET GO OF THE BRAKE THE GEAR SHIFTED AUTOMATICALLY ON NEUTRAL. AFTER, 3 TRIES, THE CAR FINALLY WAS ABLE TO GO FORWARD WITHOUT STRUGGLE. 2) I WAS TRYING TO BACK IN ONE OF THE SPOT (FLAT GROU…
Owner-reported narrative. 590 miles reported. Look up ODI 11074394 at NHTSA ↗
Owner report 11103813 · 2018-06-25 (June 25, 2018)
THIS IS A BRAND NEW CAR I PURCHASED. THERE IS A HIGH-PITCHED NOISE THAT THE BRAKE PEDAL MAKES WHEN YOU DEPRESS THE BRAKE PEDAL. I THOUGHT THIS WAS PART OF THE BEEPS THE CAR MAKES, BUT IT'S NOT. THE BRAKE BOOSTER WAS REPLACED, BUT THE BRAKE PEDAL CONTINUES TO MAKE A HIGH-PITCHED CHIRPING NOISE. I RETURNED TO TOYOTA SERVICE TO HAVE IT CHECKED OUT, BUT THEY SAID THAT THIS IS A NORMAL SOUND THAT OTHER PRIUSES MAKE. THIS CONCERNS ME THAT THE BRAKES ARE DEFECTIVE SINCE I'VE NEVER HEARD OF BRAKES THAT SOUND LIKE THIS.
Owner-reported narrative. 13 miles reported. Look up ODI 11103813 at NHTSA ↗
Owner report 11230722 · 2019-07-10 (July 10, 2019)
TL* THE CONTACT OWNS A 2018 TOYOTA PRIUS. WHILE DRIVING 20 MPH, THE ELECTRICAL SYSTEM FAILED AND EVERYTHING IN THE VEHICLE SHUT DOWN. THE VEHICLE DECELERATED AND LOST POWER. WHILE THE VEHICLE COASTED, THE ENGINE RESTARTED ON ITS OWN. THE VEHICLE WAS DRIVEN TO TOYOTA VALLEJO (201 AUTO MALL PARKWAY, VALLEJO, CA 94591, [phone removed]) TO BE DIAGNOSED, BUT THE FAILURE COULD NOT BE REPLICATED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 8,600.
Owner-reported narrative. 8,600 miles reported. Look up ODI 11230722 at NHTSA ↗
Owner report 11267998 · 2019-10-11 (October 11, 2019)
THE HEAT SHIELD ON THE UNDERSIDE OF THE CAR, BY THE STORAGE BATTERY CAME LOSE WHILE DRIVING AND WAS DAMAGED. IT IS HELD IN PLACE BY ONLY FOUR PLASTIC PINS. THE CAR IS SO LOW TO THE GROUND THAT IT IS HARD TO CLEAR NORMAL SPEED BUMPS LET ALONE OLDER LARGER ONES. WE WERE TRAVELING A HOUSING ADDITION LESS THAN 20 MPH AND JUST WENT OVER AN OLDER HIGH SPEED-BUMP AND PUDDLE WHEN IT OCCURRED. WE DROVE THE LAST 100 OR SO FEET HOME AND WIRED IT UP OUT OF THE WAY SO THE CAR COULD BE DRIVEN AT LOW SPEED TOO THE DEALERSHIP. THE DEALERSHIP TOLD US THIS WAS D…
Owner-reported narrative. 3,000 miles reported. Look up ODI 11267998 at NHTSA ↗
Owner report 11470356 · 2022-06-22 (June 22, 2022)
UNKNOWN My car started stalling when it comes to a full stop. I.e. if I stop at a red light or stop sign, and I then press the gas, it stalls. It might inch forward, but it doesn’t really accelerate. This happened last year, and I took it to the dealer. They couldn’t reproduce the results, and they could only suggest changing my small 12V battery. Today, it stalled 8 times, between 2 short drives. Each at a stop sign only travelling ~5 miles total. I have an appointment at the dealer but this is exactly what happened last year with no diagnos…
Owner-reported narrative. Look up ODI 11470356 at NHTSA ↗