Hybrid Car Repair: How To Fix Common Problems

Hybrid cars combine the power of both electric and gasoline engines to achieve fuel efficiency and reduce emissions. As a result, their complexity requires specially trained mechanics for repair and maintenance. Although hybrid car repairs may seem intimidating, the basics of many common repair problems can be easily understood and many are not overly complicated to fix.

Common problems faced by hybrid car owners include dead or slow-charging batteries, weak or no traction from the electric motor, stalling or jolting during idle, poor acceleration, and sudden loss of power. These can all be caused by a number of factors, such as low levels of coolant or transmission fluid, worn brushes on the electric motor, or failed power electronics.

To avoid costly repairs and keep your hybrid car running smoothly, familiarize yourself with the basics of hybrid car repairs. You should understand how to properly inspect and test your hybrid car’s battery, electric motor, and other components to identify signs of wear, such as loose connections, corroded wiring, or mechanical problems. Regular maintenance, such as changing the oil and filters, is also important for ensuring top performance.

It’s also a good idea to research the common repair problems of the particular model of the hybrid car you own. This will allow you to learn more about specific issues that your car may experience. Furthermore, it is beneficial to become knowledgeable about the latest repair techniques being used for hybrid cars, as often the technology in these cars requires special attention that not all mechanics are familiar with. With a good understanding of the basics of hybrid car repair, you can troubleshoot and address common problems with your hybrid car.

Hybrid Car Repair: How To Fix Common Problems

  1. Battery drain
  2. High levels of emissions
  3. Loss of power
  4. No start issues
  5. Faulty charging system
  6. Oil leaks
  7. Check engine light
  8. Faulty brake system
  9. Overheating
  10. Issues with power inverters

Battery drain

Battery drain in a hybrid car can be caused by a few different factors. Most often, the main culprit is the hybrid car battery itself. If the battery is not receiving/storing enough charge, it can cause battery drain and lead to the car eventually losing power.

To repair the battery drain, the first step is to identify the cause. This can be done by using a professional diagnostic tool. Once the cause is found, the hybrid car battery should be tested and replaced with a new one if necessary. It’s also important to check the battery terminals, wiring, and connections for any corrosion or damage.

In some situations, it is possible to reset the battery in order to restore the power and charge. This is done by disconnecting the battery terminals and cycling the key or pushing the Start/Stop button several times. This allows the system to be reset and the charge to be restored.

Finally, the vehicle should be inspected for any other potential problems that could be causing the battery drain such as a loose alternator belt or a clogged air filter. The vehicle should also be taken in for a service check-up to ensure it is in proper working condition.

High levels of emissions

High levels of emissions in a hybrid car can generally be remedied by adjusting the car’s fuel/air mixture, inspecting the engine for possible vacuum leaks, evaluating the emissions control system, and replacing any parts that are not functioning properly. Depending on the type of hybrid car you are driving, it may be necessary to check the battery pack and charging system for any issues. Additionally, vehicles that use regenerative braking systems may require the brakes to be adjusted to reduce emissions. Finally, it is important to ensure that your car is regularly serviced and all fluids are regularly replaced.

Loss of power

Repairing a hybrid vehicle’s loss of power starts by identifying the cause of the issue. This can be done by using an onboard diagnostic tool to scan the car’s computer system and pinpoint any codes that it is throwing. Once the cause is identified, the technician can then determine what repairs are necessary.

Typical repairs for a loss of power issue in a hybrid car include replacing the battery, checking the powertrain control module and its wiring, and resetting the computer system. Checking the spark plugs, cleaning the air filter, and replacing any faulty sensors can also be necessary. Additionally, technicians may need to check the fuel injectors to ensure they are in working order. Lastly, the fuel pump and fuel lines may need to be tested and serviced if necessary.

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No start issues

Repairing no-start issues in a hybrid car can be complex as several systems need to be properly whereas traditional gas-powered cars require only a basic electric system to start. The first step in troubleshooting a no-start issue is to determine what type of hybrid car it is. Most hybrid cars will either be parallel or series hybrid. Once the type of hybrid is determined the issue can be narrowed down to a specific system. 

For a parallel hybrid, the electric motor and engine operate independently of one another. Start-up problems in these systems are usually traced to either the battery, starter or ignition switch as these have to be functioning correctly for the engine to start. The battery should be checked to make sure it is charged correctly, and if not, it will require recharging or replacement. The starter and ignition switch need to be tested for proper operation.

For a series hybrid, the electric motor is linked to the gas engine to provide additional power. Troubleshooting this type of system requires checking the power entertainment system and the engine control module where the software controls the engine operations. In both types of hybrids, the brakes need to be inspected for proper engagement and operation. If they have seized up, they will need to be repaired or replaced for the engine to start. Finally, the fuel system needs to be tested for proper operation, as any fuel delivery issues will prevent the engine from starting.

Faulty charging system

A faulty charging system in a hybrid car is typically caused by either a bad alternator or a faulty battery. To repair the problem, the process should begin with a thorough diagnostic inspection to identify the source of the issue.

If the alternator is found to be the cause of the faulty charging system, the first step would be to test it for output. If the output is not within the specified range, the alternator may need to be rebuilt or replaced, depending on its condition.

If the battery is found to be the cause, the process to replace the battery will involve disconnecting the old battery and connecting a new one. Before doing so, it is important to fully check the voltage on the old battery to ensure there are no remaining electrical charges, as this could potentially cause a short and damage to the car’s equipment. Once the new battery is connected, the charge level should be checked to make sure it has a full charge.

Once the replacement is complete, all other relevant components should be tested for proper operation before the car is taken for a test drive. If the charging system is still not functioning properly, further diagnosis may be needed to locate any additional problems.

Oil leaks

Oil leaks in hybrid cars can be caused by a variety of issues, including faulty seals, worn-out gaskets, cracked hoses, and clogged drain plugs. To fix an oil leak, it is important to first identify the source of the leak. One of the first steps in this process is to thoroughly inspect the area where the leak is emanating from and securely tighten any loose fittings. Additionally, any damaged seals or gaskets should be replaced.

The next step is to determine if the leak is coming from the oil filter. If so, it should be replaced with an OEM part. If the leak is determined to be coming from a seal, hose, or other part, a qualified technician must inspect all of the components of the oil system for any damage and replace any damaged parts. Finally, it may be necessary to perform a pressure test of the entire oil system to determine the exact source of the leak. Once the repair is complete, the oil should be changed and the system should be refilled with the correct amount of oil.

Check engine light

The first step in diagnosing and repairing a Check Engine Light in a Hybrid Car is to get the car scanned for any trouble codes. A scan should reveal the specific trouble code stored and provide further insight into what might be wrong with the car. After the code is identified, the technician can then begin checking related components that could be causing the issue. This often includes checking electrical systems, fuel systems, sensor readings, vacuum lines, and ignition systems. The technician may also perform a diagnostic test drive in order to better diagnose the issue. Finally, necessary repairs will be done to address the problem, such as replacing parts or adjusting settings on the car. After the repair is performed, the error code will be cleared and the Check Engine Light should turn off.

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Faulty brake system

The repair of a faulty brake system in a hybrid car can involve a few different tasks depending on the specific source of the issue.

First, the brakes should be visually inspected to make sure that all components of the system are in good working order. This includes brake pads, rotors, calipers, and hoses. If any of these components are worn or damaged, they should be replaced as necessary. 

Next, the brake fluid should be checked. If the brake fluid is low, it should be filled and the system should be bled to remove any air bubbles. If the brake fluid is contaminated, the entire system should be flushed and new brake fluid should be added. 

After the fluid is tested, the brakes should be tested for any potential issues such as excessive noise or vibration, poor pedal response, or uneven feel. Any issues should be addressed and adjusted accordingly.

Lastly, the brake system should be tested while the vehicle is in motion. This will help identify any issues with the brake system that may not be evident while the vehicle is stationary. The brakes may need to be adjusted or replaced if they fail to operate correctly during this test.

Once all of these steps have been completed, the brake system should be completely repaired and functioning correctly.


Overheating in a hybrid car can be repaired in several ways. First, check the coolant level and re-fill as necessary. Also, inspect all the hoses and connections, and replace any worn parts. If any blockages or clogs are found, they must be cleared to ensure proper airflow through the cooling system. Second, inspect the air filter and replace the air filter if it is clogged or dirty. Third, inspect the AC system and compressor and charge the system with refrigerant. Fourth, check the condition of the thermostat and replace it if necessary. Finally, if all other repairs have not improved the issue, contact the hybrid car dealer or manufacturer for further assistance or recommend a tuning of the engine or ECM.

Issues with power inverters

Power inverters in Hybrid Cars are typically responsible for converting the vehicle’s direct current (DC) power supply into a useable alternating current (AC) supply for use in the car’s auxiliary items such as lights, entertainment systems, or power outlets. Generally, if the power inverter stops working, there are only two possibilities: the inverter has gone bad itself, or there is an issue with the power supply. If the inverter itself is damaged, it needs to be replaced with a new one of the same size and wattage as the original. The power supply can be tested with a standard multimeter to troubleshoot any potential electrical faults, such as a loose wire or a short circuit. Once these are addressed and repaired, the inverter should be reinstalled and tested to ensure it is functioning properly.

Hybrid Car Repair: How To Fix Common Problems

Common Problems With Hybrid Cars

  1. Battery life: One of the most common problems with hybrid cars is the battery life. Hybrid batteries typically last between 8 to 10 years, however, some may last shorter or longer depending on wear and tear.
  2. Cost: Hybrid cars tend to be more expensive than their traditional petrol or diesel counterparts. This can make them less accessible to the general public or to those on a budget.
  3. Limited charging options: Since hybrid cars run on both petrol and electricity, these cars need to be charged regularly for optimal performance. However, not all areas have easily accessible charging stations or adequate infrastructure to support these cars.
  4. Repair costs: A hybrid car is more complex than a traditional petrol or diesel car, and can therefore be more expensive to repair. It’s important to research the local repair options before purchasing a hybrid car.
  5. Limited mileage: The range for hybrid cars is usually quite low due to the design, meaning they will require frequent charging in order to get from place to place. Some hybrid cars may have an extended range, however, this is typically not the case.

Hybrid Cars To Avoid

  • Cadillac ELR
  • Toyota Prius Prime
  • Honda Insight
  • Lexus CT 200h
  • Mercedes-Benz S550e
  • Nissan Leaf
  • BMW i3
  • Audi A3 Sportback e-tron
  • Kia Niro
  • Chevrolet Volt

Toyota Hybrid Problems

  1. Rapid Depreciation: One of the biggest complaints about Toyota hybrid cars is that they tend to depreciate rapidly compared to their gasoline-powered counterparts. This means that the resale value of Toyota hybrid cars tends to be much lower than gas-powered cars.
  2. Battery Replacement Costs: Since hybrid cars rely on a combination of both gasoline and electric power, the batteries that power them tend to be expensive to replace. This can lead to a hefty repair bill if the electric battery needs to be replaced.
  3. Technology Limitations: Since hybrid technology is relatively new, it is subject to certain limitations. For example, most Toyota hybrid vehicles can only travel a short distance in electric-only mode. Additionally, their acceleration and performance is not as powerful as gasoline-powered cars.
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Hybrid Car Transmission Problems

Some common problems that may arise in a Hybrid Car Transmission include:

  • Vibration while Accelerating: Uneven wearing of tires, loose suspension parts, or misaligned wheels can cause vibration when shifting.
  • Slipping: This can be caused by a lack of lubrication in the transmission, faulty solenoids, or dirt in the system.
  • Difficulty Shifting Gears: This could be caused by low transmission fluid, sticking solenoids, or defective valve body.
  • Noisy/Grinding Gear Shifts: This could be caused by a lack of fluid, worn internal components, or worn bearings.
  • Delay in Shifting: This could be caused by throttle cable and/or linkage adjustments, fluid viscosity issues, or dirty filters and screens.
  • Exhaust Smoke: This malfunction signals trouble with the hybrid’s systems or cooling system.

Advantage And Disadvantages of Hybrid Car


  • Enhanced fuel economy: The main advantage of a hybrid car is its enhanced fuel economy as compared to a conventional gasoline-only car. The hybrid design makes it possible for the combined power of both the engine and the electric motor to provide significantly better gas mileage.
  • Low fuel cost: With its enhanced fuel economy, a hybrid car is relatively much cheaper to buy and operate in terms of fuel costs with higher miles per gallon.
  • Environmental friendly: Hybrid cars also produce lower exhaust emissions compared to conventional gasoline-only vehicles and therefore are more environment friendly. The battery-powered electric motor generates no emissions at all.


  • High purchase cost: Hybrid cars in general may be more expensive than conventional gasoline cars of the same model.
  • Risk of battery failure: The battery powering the electric motor may fail after a few years which may be expensive to replace.
  • Limited power: Hybrid cars may not have as much power and accelerate as fast as their non-hybrid counterparts.


Q. Can a hybrid car be repaired?

A. Yes, a hybrid car can be repaired with the same type of parts and labor as any other car.

Q. Are hybrid cars more difficult to fix?

A. No, hybrid cars are just as easy to fix as conventional cars. In some cases, they may require different tools and specialized knowledge.

Q. Why hybrid cars are bad for the environment

A. Hybrid cars are bad for the environment because they still emit pollutants, even though they produce fewer emissions than traditional gas-powered vehicles. Hybrids also use rare metals and batteries, which require significant energy and resources to produce and recycle.

Q. What is the weakness of hybrid vehicles?

A. The main weakness of hybrid vehicles is their high cost compared to traditional gasoline vehicles. 

Q. How much does it cost to fix a hybrid car?

A. The cost of repairing a hybrid car can vary greatly depending on the make and model of the car, as well as the type of repairs needed. Generally, labor costs for hybrid car repairs can range from around $50 to $150 per hour, while parts can cost anywhere from $100 to a few thousand dollars.

Q. Are hybrid cars expensive to repair?

A. No, hybrid cars are not expensive to repair. In fact, they are often cheaper to repair than traditional gas-powered vehicles due to their simpler design and fewer moving parts.

Q. How much to repair a hybrid battery?

A. Repairing a hybrid battery can cost anywhere from $1,500 to $4,500, depending on the make and model of the vehicle.


In conclusion, hybrid cars have many unique features and complexities that they need to be repaired properly. As such, it is important for drivers of hybrid cars to familiarize themselves with the common issues that can occur and how to fix them. This can include understanding the electrical system, checking for leaks, cleaning out air filters, and checking and replacing the batteries. Additionally, drivers of hybrid cars should also take their cars to a technician for regular maintenance and check-ups to ensure that any problems are addressed and fixed quickly and properly.

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