Q: Toyota Prius 2012 hybrid system light with master warning light, slip indicator, brake system warning and malfunction

asked by on August 26, 2017

Toyota Prius 2012 hybrid system light with master warning light, slip indicator, brake system warning and malfunction Indicator!!! When i unplug 12v battery terminal and plug in again then there is no warning light appearing but again it comes! What to do????

My car has 93200 miles.
My car has an automatic transmission.

The warning lights signify that trouble codes have set and been stored in the vehicle computer(s). Of course, the codes likely reflect the existence of an underlying fault, the severity of which will be unknown until the codes are read by a mechanic and then an actual diagnostic is performed to pinpoint the fault. Codes are merely "clues" to faults; by themselves, codes do not provide a conclusive diagnostic. In your circumstance, you first need a diagnostic to pinpoint the problem(s) and a recommended one would be a warning light diagnostic. If you request that service, the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Jeep JK loss of power and engine light

Hello, thank you for writing in. With the vehicle stalling, my first instinct would be to check the charging system. That would be the battery and the alternator, their electrical wiring, and the terminals. When the system fails, all of...

How do I adjust the clock?

The clock is located at the top of the center console, and is very easy to adjust: Turn the ignition to ACC or On. Press the button to the left of the clock until the hour is set correctly....

2011 toyota pruis; code c1391 abnormal leak in accumulator, brake light and abs light on

Hi Andrew. Thanks for sending your question today. Typically this Toyota-specific OBD-II trouble code is due to an internal leak in the actuator circuit and the accumulator circuit. The first step in diagnosing this problem is verifying that there are...

Related articles

A Buyer’s Guide to the 2012 Honda Civic
America’s America’s best-selling compact car, the Honda Civic has been around for nine generations now, and the 2012 models boast some very exciting features and upgrades. Including coupe and sedan styles, the Civic continues to be one of the most...
A Buyer’s Guide to the 2012 Volvo XC90
While While the trend seems to be the bigger the vehicle the better, the 2012 Volvo XC90 proves that you can combine seven-passenger seating with a smaller size – without overly sacrificing comfort. For those who want a smaller footprint...
A Buyer's Guide to the 2012 Cadillac Escalade EXT
The 2012 Cadillac Escalade EXT has a 403-hp, 6.2-liter V8 engine, a fully configurable cargo bed, and a fuel-saving cylinder-deactivation system.