Skip the auto shop - Our mechanics make house calls

Q: Warning lights are on and battery is low

asked by on

While I was driving on the the hwy in cruise control, the following lights came on: Check engine light is on, master warning light, VSC light, hybrid system warning light. Cruise stopped working. Was able to drive home. Now battery has only two bars on it. Master warning, check engine and hybrid light are still on and batter is down to two bars.

My car has 146000 miles.
My car has an automatic transmission.

It sounds like you very possibly have a failing HV (high voltage) battery, also known as the main hybrid battery. You may be lucky and be just under the limits for the battery warranty, as they were extended to 150,000 miles and 10 years from original vehicle in service date. You should have the warning light diagnosis verified first by a qualified technician, such as one from YourMechanic. This ensures that you go to the dealer with the knowledge you need to make sure your battery is replaced under warranty.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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

Q: High pitched squeeling when you pull away and dim headlight

This may be a result of a failing alternator. As the alternator begins to fail, this may cause it to struggle to properly charge the battery resulting in a drain on the power available to the various accessories in the...

Q: Warning light on

Hi, the Check Engine Light turns on when the car's computer detects a fault somewhere. While you are driving the car, the computer is constantly checking all of the signals coming from the sensors throughout the vehicle. The computer knows...

Q: How much to change timing belt and water pump plus valve cover gasket clean replace also other belts spark plugs oil change

Sent to CS for billing question on replacement parts and for a comparison of another shop.

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...