Toyota Prius, Prius Prime (2022): Engine and engine cooling
Recall 21V734000 · Sep 22, 2021 · Toyota Motor Engineering & Manufacturing
8,411
vehicles affected
8,411
vehicles affected
Facts
- Recall number
- 21V734000
- Date
- Sep 22, 2021
- Maker
- Toyota Motor Engineering & Manufacturing
- Units affected
- 8,411
- Kind
- Vehicles
- Component
- Engine and engine cooling > Engine > Engine control module (ecu/ecm) > Software; Hybrid propulsion system
- Model years
- 2022
- Started by
- The maker
- Hazard
- Crash risk
What is wrong
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.
What can happen
A loss of drive power increases the risk of a crash.
The fix
Recall repairs are free of charge.
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.
Vehicles covered
2 models, 2 model years in all
| Make | Model | Model years |
|---|---|---|
| Toyota | Prius | 2022 |
| Toyota | Prius Prime | 2022 |
Related pages
Questions and answers
Which vehicles are in recall 21V734000?
2 models: Toyota Prius (2022), Toyota Prius Prime (2022), about 8,411 vehicles in all.
What is the fix for recall 21V734000?
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.
What can happen?
A loss of drive power increases the risk of a crash.
A recall means the maker found a safety problem and offers a free fix; it does not mean every unit has the problem. Units affected are as reported by the company. Popular models sell more and so have more recalls and complaints. Official public data; texts are shortened. A dealer can tell whether a single vehicle still needs the repair.