2022 Toyota Prius Prime recalls
Recall 21V-734: Hybrid Propulsion System, Engine and Engine Cooling
Reported Sep 22, 2021 · 8,411 vehicles affected · Toyota Motor Engineering & Manufacturing
Problem: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2022 Prius and Prius Prime vehicles. The Engine Control Unit (ECU) software may falsely detect an error and shut down the hybrid system, causing a loss of drive power.
Risk: A loss of drive power increases the risk of a crash.
Fix: Dealers will update the ECU software, free of charge. Owner notification letters were mailed November 18, 2021. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 21TB07/21TA07.
2022 Toyota Prius Prime problems reported by owners
| Problem area | Reports | |
|---|
| Forward Collision Avoidance | 2 | |
| Vehicle Speed Control | 2 | |
| Unknown or Other | 1 | |
| Service Brakes | 1 | |
| Fuel/Propulsion System | 1 | |
| Electrical System | 1 | |
| Steering | 1 | |
| Engine and Engine Cooling | 1 | |
| Hybrid Propulsion System | 1 | |
Most reported parts
- Forward Collision Avoidance › Warnings — 1
- Forward Collision Avoidance › Adaptive Cruise Control — 1
Typical mileage at the time of the problem: 12,000 miles (median of owner reports).
Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.
Recent 2022 Toyota Prius Prime complaints
Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.
Engine and Engine Cooling · at 12,000 miles · reported Jun 25, 2024
The contact owns a 2022 Toyota Prius Prime. The contact stated while depressing the accelerator pedal, the vehicle failed to accelerate as intended. The contact stated multiple unknown warning lights had been temporarily illuminated. The vehicle was taken to a local dealer however, the cause of the failure could not be determined. Upon further investigation, the contact related the failure to NHTSA Campaign Number: 21V734000 (Engine and Engine Cooling, Hybrid Propulsion System) however, the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA…
Vehicle Speed Control · at 700 miles · reported Sep 12, 2023
The contact owns a 2022 Toyota Prius Prime. The contact stated while driving at approximately 25 MPH, the vehicle suddenly experienced unintended acceleration, and the vehicle accelerated to 50 MPH before the contact was able to stop the vehicle by depressing the brake pedal. The contact stated that the failure reoccurred the following day. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure, but no assistance was offered. The failure mileage was 700.
Vehicle Speed Control · reported Sep 4, 2022
When adaptive cruise control is engaged and a car cuts in front of you the car will accelerate rapidly at first nearly hitting the car before it slows.
Fuel/Propulsion System · reported Jul 27, 2022
Prior to making a turn into a residential driveway, the vehicle throttled up and there was no response from the vehicle when the brakes were applied. The vehicle would not stop in motion. Based on my experience of this event, it is my firm belief that the vehicle shut down completely as a result to correct the throttle event, and the vehicle was not responsive to application of brake to bring the car to a stop. The safety and the safety of other was put at risk because the car would not come to a stop and the vehicle did not respond. If there would have been someone in the driveway, or this…
Service Brakes · reported Jul 11, 2022
On June 28, 2022 at around 20:10 PM, while on vacation at a resort in the Laurentian Mountains in Quebec, Canada, I went down to charge the car at the only charging station at the resort. It was being used, so I returned to our cabin in the D building. As I approached the building, I pulled up to clear a car so that I could park beside it. I slowed and before I could put the car in reverse, the car rolled forward a few inches. My foot was already on the brake so I pressed it harder. But the car continued to roll forward. It wouldnât stop. When it finally came to a stop on the edge of a rock…
Frequently asked questions
Does the 2022 Toyota Prius Prime have any recalls?
Yes — NHTSA lists 1 recall for the 2022 Toyota Prius Prime: 21V-734 (hybrid propulsion system, engine and engine cooling). Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.
What is the most common problem with the 2022 Toyota Prius Prime?
Owners report forward collision avoidance problems most often (2 reports), followed by vehicle speed control (2). The typical mileage when problems were reported is about 12,000 miles.
Are Toyota recall repairs free?
Yes. Safety recall repairs are free at authorized Toyota dealers, whether you are the first owner or bought the car used.