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Description of Dr. Prius / Dr. Hybrid
Screenshots of Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
  • Dr. Prius / Dr. Hybrid
Description of Dr. Prius / Dr. Hybrid (from google play)

--- Important note: Please send any question to support@PriusApp.com and we will help you figuring out the issue right away, leaving one star isn't nice and really isn't a good way to communicate ---

Dr. Prius is an app developed to help professional Toyota/Lexus hybrid repair shop or owners to examine the health of the High Voltage battery. It turns your mobile device into a professional diagnostic equipment that usually cost thousand of dollars, it is being trusted by 439+ professional repair shops around the world.

Dr. Prius perform test and provides access to all the relevant battery information to quickly help identify problems with a simple touch on the screen of a smartphone, do not fall victim to bad battery, test the battery and print the certificate to prove the health of the battery system.

This app requires a ELM327 Bluetooth OBD interface to communicate with your hybrid vehicle, most of the cheap clone ELM327 will not work due to inability to switch between ECUs in your vehicle. Please visit http://PriusApp.com/obd.html for more detail or feel free to email us for any adapter compatibility question. It is generally NOT a good idea to use WiFi OBD2 adapter due to the interruption of the internet during the connection.

Some useful features:

1. Real-time battery monitor with clever charts and numbers.
2. Life expectancy test with proprietary algorithm to find out battery remaining life.
3. Full battery test to run diagnostic on battery system.
4. Print or share test certificate with customer.
5. Read error codes, reset error codes in a breeze.
6. Disable or enable the reverse beep, seat belt beep, adjust battery fan speed and more.
7. Maintenance mode to help with car diagnostic and maintenance
8. Traction control on/off
9. Find nearby reputable hybrid repair shop.

Current supported model:
1. 2020+ Prius all lineup except 4WD version
2. 2020+ Highlander hybrid
3. 2017-2019 Prius Prime Plug-In
4. 2016-2019 Prius Gen4 One, Two, Two Eco, Three(Lithium) and Four(Lithium)
5. 2012-2015 Prius Plug-In
6. 2009-2015 Prius Gen3
7. 2003-2009 Prius Gen2
8. 1997-2003 Prius Gen1 (partial support)
9. Prius V
10. Auris
11. Aqua
12. Prius C
13. Feilder hybrid
14. Axio hybrid
15. Camry Hybrid
16. Avalon Hybrid
17. Highlander Hybrid
18. Lexus CT200h
19. Lexus ES300h
20. Lexus HS250h
21. Lexus RX400h
22. Lexus RX450h
23. Lexus GS450h
24. Lexus LS600h
25. Lexus UX250h
26. CHR Hybrid
27. 2006 Estima Hybrid (partial support on Android and Amazon Fire)
28. 2006+ Estima Hybrid (full support on Android and Amazon Fire)

Tutorial videos: https://www.youtube.com/channel/UCO7Wd_asG790GmeJdakUkjg/feed

Note: Most features are free but test features require in-app purchase. Any feedback or feature request please reach out to support@PriusApp.com

How-to videos:
Find the trouble battery:
https://youtu.be/Vu0D-ImqMgo

Find out remaining life of the battery - Android:
https://youtu.be/J5sjeMnwSFw

Find out remaining life of the battery - iOS:
https://youtu.be/AhfIbLkEq8w

Privacy policy:
Dr. Prius App does not collect any personal information, a full privacy policy can be found here: https://priusapp.com/privacypolicy.html

Version history Dr. Prius / Dr. Hybrid
New in Dr. Prius 6.50
1. Implement Gen1 Prius DTC code read and reset.
2. Gen1 Prius 12v and charge/discharge control fix.
3. NexPower V3 Sodium-ion battery integration.
4. Support 2023 Tundra, Sienna, Aqua hybrid
New in Dr. Prius 6.49
1. Implement Gen1 Prius DTC code read and reset.
2. Gen1 Prius 12v and charge/discharge control fix.
3. NexPower V3 Sodium-ion battery integration.
4. Support 2023 Tundra, Sienna, Aqua hybrid
New in Dr. Prius 6.47
1. Fix Gen1 Prius data issues - charge/discharge control, 12v auxiliary battery
2. NexPower V3 Sodium-ion battery integration.
3. Fix chart/pie rendering issue.
4. Support 2023 Tundra, Sienna, Aqua hybrid
New in Dr. Prius 6.46
1. Fix Gen1 Prius data issues - charge/discharge control, 12v auxiliary battery
2. NexPower V3 Sodium-ion battery integration.
3. Fix chart/pie rendering issue.
4. Support 2023 Tundra, Sienna, Aqua hybrid
New in Dr. Prius 6.45
1. NexPower V3 Sodium-ion battery integration.
2. Fix chart/pie rendering issue.
3. Update Android targetSdkVersion to 34.
4. Auto connect OBD2 is now available at -> Settings -> Auto connect to last Bluetooth OBD2 adapter.
5. Fix bug with fan speed override running at the background.
6. Increase connection stability with Bluetooth and WiFi OBD2 adapter.
7. Fix battery test issue with new Android devices running Android 13.
8. Support 2023 Tundra, Sienna, Aqua hybrid
New in Dr. Prius 6.30
1. Auto connect OBD2 is now available at -> Settings -> Auto connect to last Bluetooth OBD2 adapter.
2. Fix bug with fan speed override running at the background.
3. Increase connection stability with Bluetooth and WiFi OBD2 adapter.
4. Fix battery test issue with new Android devices running Android 13.
5. Support 2023 Tundra, Sienna, Aqua hybrid
6. Formula adjustment for Gen4 life expectancy test result.
New in Dr. Prius 6.28
1. Enable fan speed override running at the background
2. Enable battery data collection running at the background
3. Resolve new user battery data rendering issue running Android 13
4. Adjust Prius Gen4 SOC %
5. Support 2023 Tundra, Sienna, Aqua hybrid
6. Formula adjustment for Gen4 life expectancy test result.
New in Dr. Prius 6.27
1. Adjust Prius Gen4 SOC %
2. Support 2023 Tundra, Sienna, Aqua hybrid
3. Formula adjustment for Gen4 life expectancy test result.
4. Update Russian language support
5. Display MAX DISCHARGE along side MAX CHARGE.
New in Dr. Prius 6.26
1. Update Android target SDK to 3.3
2. Support 2023 Tundra, Sienna, Aqua hybrid
3. Formula adjustment for Gen4 life expectancy test result.
4. Update Russian language support
5. Display MAX DISCHARGE along side MAX CHARGE.
New in Dr. Prius 6.25
1. Fix display issue with Gen4 12v battery and Delta SOC
2. Support 2023 Tundra, Sienna, Aqua hybrid
3. Formula adjustment for Gen4 life expectancy test result.
4. Update Russian language support
5. Display MAX DISCHARGE along side MAX CHARGE.
New in Dr. Prius 6.24
1. Support 2023 Tundra, Sienna, Aqua hybrid
2. Formula adjustment for Gen4 life expectancy test result.
3. Update Russian language support
4. Display the long-awaited 12v battery voltage without sacrificing performance.
5. Display MAX DISCHARGE along side MAX CHARGE.
New in Dr. Prius 6.23
1. Fix Gen4 SOC display value discrepancy
2. Formula adjustment for Gen4 life expectancy test result.
3. Fix issue with incorrect unbalance block warning.
4. Display the long-awaited 12v battery voltage without sacrificing performance.
5. Display MAX DISCHARGE along side MAX CHARGE.
New in Dr. Prius 6.19
1. Fix amperage display issue with Prius Gen4, prime and CH-R hybrid.
2. Improve voltage diff by comparing voltage different between highest block and medium block.
3. Support Android 12+ new security improvement for Bluetooth devices.
New in Dr. Prius 6.16
1. Fix display bug with Nexcell lithium voltage.
2. Compensate voltage chart for certain newer hybrid model with less voltage sensors.
3. Fix life expectancy test false warning for Gen4 One, Two Eco, Rav4, 2012+ Camry hybrid.
4. Improve voltage diff by comparing voltage different between adjacent battery blocks.
5. Support Android 12+ new security improvement for Bluetooth devices.
New in Dr. Prius 6.12
1. Introduce accumulative delta voltage chart.
2. Fix life expectancy test false warning for Gen4 One, Two Eco, Rav4, 2012+ Camry hybrid.
3. Improve voltage diff by comparing voltage different between adjacent battery blocks.
4. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
New in Dr. Prius 6.11
1. Compensate the voltage graph for certain newer hybrid model with less voltage sensors.
2. Fix life expectancy test false warning for Gen4 One, Two Eco, Rav4, 2012+ Camry hybrid.
3. Improve voltage diff by comparing voltage different between adjacent battery blocks.
4. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
New in Dr. Prius 6.10
1. Fix full battery test false warning for Gen4 One, Two Eco, Rav4, 2012+ Camry hybrid.
2. Fix life expectancy test false warning for Gen4 One and Two Eco.
3. Improve recording, share CSV before exiting.
4. Increase stability by handling bad OBD2 adapter skipping records problem.
5. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
6. Upgrade to AndroidX code base
7. Upgrade to Google Billing 4.0
New in Dr. Prius 6.9
1. Fix life expectancy test false warning for Gen4 One and Two Eco.
2. Fix data reading issue with Prius prime and Rav4 prime
3. Improve recording, share CSV before exiting.
4. Increase stability by handling bad OBD2 adapter skipping records problem.
5. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
6. Upgrade to AndroidX code base
7. Upgrade to Google Billing 4.0
New in Dr. Prius 6.8
1. Fix data reading issue with Prius prime and Rav4 prime
2. New algorithm to find out bad blade(s) during life expectancy test
3. Improve recording, share CSV before exiting.
4. Increase stability by handling bad OBD2 adapter skipping records problem.
5. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
6. Upgrade to AndroidX code base
7. Upgrade to Google Billing 4.0
New in Dr. Prius 6.6
1. Run App in single instance mode.
2. Improve recording, share CSV before exiting.
3. Increase stability by handling bad OBD2 adapter skipping records problem.
4. Fix Full battery test temperature protection bug.
5. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
6. Fix battery data for Highlander and RX400h
7. Upgrade to AndroidX code base
8. Upgrade to Google Billing 4.0
New in Dr. Prius 6.5
1. Increase stability by handling bad OBD2 adapter skipping records problem.
2. Fix Full battery test temperature protection bug.
3. Fix fan override for RX400h, Camry hybrid and GS450h.
4. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
5. Fix battery data for Highlander and RX400h
6. Improve data recording feature (CSV file sharing)
7. Upgrade to AndroidX code base
8. Upgrade to Google Billing 4.0
New in Dr. Prius 6.4
1. Fix Full battery test temperature protection bug in Celsius.
2. Fix fan override for RX400h, Camry hybrid and GS450h.
3. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
4. Fix battery data for Highlander and RX400h
5. Improve data recording feature (CSV file sharing)
6. Upgrade to AndroidX code base
7. Upgrade to Google Billing 4.0
New in Dr. Prius 6.3
1. Fix fan override for RX400h, Camry hybrid and GS450h.
2. Improve full battery test accuracy - prevent cold temperature test and adjust formula
3. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
4. Fix battery data for Highlander and RX400h
5. Improve data recording feature (CSV file sharing)
6. Upgrade to AndroidX code base
7. Upgrade to Google Billing 4.0
New in Dr. Prius 6.2
1. Fix battery data display issue with Camry hybrid and GS450h.
2. Improve full battery test accuracy - prevent cold temperature test and adjust formula
3. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
4. Fix battery data for Highlander and RX400h
5. Improve data recording feature (CSV file sharing)
6. Upgrade to AndroidX code base
7. Upgrade to Google Billing 4.0
New in Dr. Prius 6.0
1. Support Nexcell lithium cell voltage display, https://ProjectLithium.com
2. Fix battery data for Highlander and RX400h
3. Improve data recording feature (CSV file sharing)
4. Improve life expectancy formula
5. Upgrade to AndroidX code base
6. Upgrade to Google Billing 4.0
New in Dr. Prius 5.29
1. Update color coding at battery monitor page
2. Memorize previous OBD2 device and pre-select during launch
3. Fix error code translation problem, ex: CA799 should be B2799
4. Support 2019, 2020 Prius Limited
5. Support 2019 Rav4 hybrid
6. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.28
1. Fix error code translation problem, ex: CA799 should be B2799
2. Fix external storage error when saving result
3. Fix back button issue on several pages
4. Fix App crash due to previously enabled fan speed
5. Support 2019, 2020 Prius Limited
6. Support 2019 Rav4 hybrid
7. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.27
1. Fix in-app purchase refresh issue
2. Fix external storage error when saving result
3. Fix back button issue on several pages
4. Fix App crash due to previously enabled fan speed
5. Support 2019, 2020 Prius Limited
6. Support 2019 Rav4 hybrid
7. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.26
1. Fix external storage error when saving result
2. Fix back button on several pages
3. Fix App crash due to previously enabled fan speed
4. Support 2019, 2020 Prius Limited
5. Support 2019 Rav4 hybrid
6. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.22
1. Fine tune life expectancy test threshold
2. Support 2020 Highlander hybrid
3. Fix issue with running fan speed override and checking error code at the same time.
4. Support 2019, 2020 Prius Limited
5. Support 2019 Rav4 hybrid
6. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.21
1. Support 2020 Highlander hybrid
2. Fix issue with running fan speed override and checking error code at the same time.
3. Support 2019, 2020 Prius Limited
4. Support 2019 Rav4 hybrid
5. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.18
1. Fix issue with running fan speed override and checking error code at the same time.
2. Text correction.
3. Support 2019, 2020 Prius Limited
4. Support 2019 Rav4 hybrid
5. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.17
1. Fix issue with WiFi OBD2 adapter crash on special feature page.
2. Support 2019, 2020 Prius Limited
3. Support 2019 Rav4 hybrid
4. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.16
1. Fix connection issue with Prius Gen4 Three, Four
2. Support 2019, 2020 Prius Limited
3. Support 2019 Rav4 hybrid
4. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.14
1. Support 2019, 2020 Prius Limited
2. Fix error code translation
3. Add "DIY resource page"
4. Remove "nearby repair shop page" due to low usage
5. Support 2019 Rav4 hybrid
6. Fix Google billing issue where sometime the App asking user to pay again.
7. Fix Amperage reading issue with Prius Gen4 One and Two.
8. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.13
1. Support 2019, 2020 Prius Limited
2. Fix error code translation
3. Add "DIY resource page"
4. Remove "nearby repair shop page" due to low usage
5. Support 2019 Rav4 hybrid
6. Fix Google billing issue where sometime the App asking user to pay again.
7. Fix Amperage reading issue with Prius Gen4 One and Two.
8. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.11
1. Fix error code translation
2. Add "DIY resource page"
3. Remove "nearby repair shop page" due to low usage
4. Support 2019 Rav4 hybrid
5. Fix Google billing issue where sometime the App asking user to pay again.
6. Fix Amperage reading issue with Prius Gen4 One and Two.
7. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.10
1. Add "DIY resource page" in respond to the most frequent asked question
2. Remove "nearby repair shop page" due to low usage
3. Support 2019 Rav4 hybrid
4. Fix Google billing issue where sometime the App asking user to pay again.
5. Fix Amperage reading issue with Prius Gen4 One and Two.
6. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.6
1. Fix Google billing issue where sometime the App asking user to pay again.
2. Fix Amperage reading issue with Prius Gen4 One and Two.
3. Improve Life Expectancy Test accuracy with Prius Gen4
4. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.5
1. Fix Amperage reading issue with Prius Gen4 One and Two.
2. Improve Life Expectancy Test accuracy with Prius Gen4
3. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.4
1. Fix Gen 1 connection issue, support 2001 Estima hybrid,
2. WiFi adapter support - fix setting page pop-up issue
3. New user interface, less confusion
4. New graphic rendering engine with smooth animation
5. Formula adjustment for all plug-in Hybrid
6. New "maintenance mode" feature, this allow user to keep the engine running for coolant burping, engine checking..etc
7. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
New in Dr. Prius 5.3
1. Support 2001 Estima hybrid (monitor page)
2. WiFi adapter support - fix setting page pop-up issue
3. New user interface, less confusion
4. New graphic rendering engine with smooth animation
5. Formula adjustment for all plug-in Hybrid
6. New "maintenance mode" feature, this allow user to keep the engine running for coolant burping, engine checking..etc
7. Support Prius Gen4 One(NiMH), Two(NiMH), Two Eco(NiMH), Three(Lithium) and Four(Lithium)
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