Whether you’re a current Toyota Corolla owner or considering purchasing one, it’s important to be aware of the potential problems you may face down the road.
In this article, we’ll delve into the most common issues reported by Corolla owners across various generations. If you need a quick summary, here’s the 30-second rundown:
Excessive oil consumption, faulty mass airflow sensors, and ignition coil failure are common problems across all Toyota Corolla generations. Automatic transmission issues at high mileage and EVAP system failures are also frequent complaints.
The 12th gen (2020-present) Corolla has reported issues with water collecting inside doors and easily chipped paint.
11th gen (2014-2019) models often experience CVT transmission shuddering and slipping, as well as infotainment system glitches.
10th gen (2009-2013) Corollas with the 2AZ-FE engine are prone to excessive oil consumption, while faulty water pumps and alternators are common across the generation.
9th gen (2003-2008) models have issues with variable valve timing (VVT) gear rattle, oil leaks from the timing cover and oil pressure switch, and front strut bearing plate wear.
That’s the high-level overview, but stick around as we break down each problem in more detail, covering symptoms, causes, solutions, and repair costs.
We Used Real World Data To Create This List Of Problems
Let’s quickly explain how we created this list.
First, we asked 524 owners (via Facebook) about their Toyota Corolla to get a feel for what kind of problems they’ve run into. Yes, it’s a small data set but it is real world data that’s hard to beat.
All owners had their Toyota Corolla for at least a year and we saw a wide range of mileage from 92,000 to 212,000.
Then, we turned to resources like the National Highway Traffic Safety Administration, and many others, to review the most common complaints issues by owners along with the full history of recalls and active investigations.
Next, I fact-checked everything against my almost two decades of automotive experience working everywhere from dealerships to your local shops. Lastly, our team of automotive experts takes a closer look into each problem and breaks down why it happens, what you can do to prevent it, and how to fix it.
We review the data and interpret the results to make your life easier. Now that you understand how we came up with this list, let’s get into it!
What 524 Toyota Corolla Owners Told Us
Here’s what we found to be the most common problems based on our survey of 524 Toyota Corolla owners with vehicles between 92,000 and 212,000 miles (click to expand):
28% of owners surveyed had a 10th generation Corolla (2009-2013), with the 2AZ-FE engine being particularly prone to excessive oil consumption. 25% of respondents owned an 11th generation model (2014-2019), reporting the highest incidence of CVT transmission issues.
Problems Common To All Generations of Toyota Corolla
Engine Problems
Oil Consumption
Excessive oil consumption is a problem that plagues many Toyota Corolla owners. You might notice that you’re frequently low on oil, even if you’re not overdue for an oil change. Other symptoms include a burning oil smell and blue smoke coming from the exhaust.
The most common cause of excessive oil consumption in Corollas is worn piston rings. Over time, the rings can become less effective at sealing the combustion chamber, allowing oil to seep past and burn in the engine. A clogged PCV system or infrequent oil changes can also contribute to this issue.
To address excessive oil consumption, I recommend starting with regular oil changes using high-quality oil. If the problem is severe, you may need to replace the piston rings, which can cost anywhere from $1,500 to $3,000. Cleaning or replacing the PCV valve is also a good idea, and it’s a much more affordable solution at $50 to $200.
This video does a great job explaining the root of the problem not only for the Corolla but for all Toyota engines:
Faulty Mass Airflow Sensor
Another common engine problem in Toyota Corollas is a faulty mass airflow (MAF) sensor. Symptoms of a bad MAF sensor include rough idling, hesitation or stumbling during acceleration, and reduced fuel economy. You might also notice that your check engine light is on, with a code like P0101 or P0102 pointing to the MAF sensor.
The MAF sensor can become contaminated over time, leading to inaccurate readings. Faulty wiring or connections can also cause issues with the sensor’s performance. In many cases, cleaning the MAF sensor with a specialized cleaner can resolve the problem. If cleaning doesn’t do the trick, you’ll need to replace the sensor, which typically costs between $100 and $400.
Ignition Coil Failure
Ignition coil failure is another issue that affects Corollas of all generations. If you’re experiencing engine misfires, rough running, or a check engine light, a faulty ignition coil could be to blame. These coils are responsible for providing the spark that ignites the fuel in the engine, so when they fail, your engine’s performance can suffer.
Age and wear are the most common causes of ignition coil failure, but overheating and faulty spark plugs can also contribute to the problem. To fix a failed ignition coil, you’ll need to replace it, which can cost anywhere from $50 to $200 per coil. It’s also a good idea to inspect and replace your spark plugs if needed, which can run you an additional $50 to $150.
While these engine problems can be frustrating, they’re not uncommon in Toyota Corollas. By staying on top of regular maintenance and addressing issues as they arise, you can keep your Corolla running smoothly for years to come.
Transmission Problems
Automatic Transmission Issues at High Mileage
If you own a high-mileage Toyota Corolla, you might experience some automatic transmission problems. Common symptoms include harsh or delayed shifting, slipping or shuddering, and even a burning smell coming from the transmission. These issues can be caused by low or dirty transmission fluid, worn clutches or bands, or faulty solenoids.
To diagnose the problem, I recommend starting with a transmission fluid check. If the fluid is low or dirty, a simple fluid and filter change might be all you need. This typically costs between $100 and $300. However, if the problem persists, you may have worn components that need to be repaired or replaced, which can cost anywhere from $500 to $1,500.
In some cases, extensive damage may require a complete transmission rebuild or replacement. This can be a costly repair, with prices ranging from $2,000 to $5,000. To help prevent these issues, I recommend changing your transmission fluid and filter according to the manufacturer’s recommendations, which is typically every 60,000 to 100,000 miles.
Electrical Problems
EVAP System Issues Causing Check Engine Light
Another common problem that affects Toyota Corollas of all generations is issues with the evaporative emission control (EVAP) system. If you notice a check engine light, fuel odor, or difficulty filling your gas tank, an EVAP system problem could be to blame. The most common culprits are a faulty charcoal canister, a loose or damaged gas cap, or leaking EVAP hoses or valves.
The first step in diagnosing an EVAP system issue is to check your gas cap. If it’s loose or damaged, replacing it with a new one might solve the problem. This is an easy and affordable fix, with gas caps typically costing between $10 and $30. If the gas cap isn’t the issue, you’ll need to inspect the EVAP system components for leaks or damage.
A common error code associated with EVAP system problems is P0441, which indicates a purge flow problem. This can often be caused by a faulty purge valve or a leak in the EVAP hoses. Replacing the purge valve or any damaged hoses can cost anywhere from $100 to $600, depending on the extent of the problem.
Problems Specific To 9th Generation Toyota Corolla (2003-2008)
Engine Problems
Variable Valve Timing (VVT) Gear Rattle
One problem that’s specific to the 9th generation Toyota Corolla is variable valve timing (VVT) gear rattle. If you hear a rattling noise coming from your engine during a cold start, especially on the 1ZZ-FE engine, a worn VVT gear could be to blame. This issue can also cause diminished engine performance over time.
The VVT gear is responsible for adjusting the timing of the camshaft, which controls the opening and closing of the valves. When the gear becomes worn, it can cause a rattling noise and affect the engine’s performance. Insufficient oil pressure can also contribute to this problem, so it’s important to perform regular oil changes with high-quality oil.
To fix a worn VVT gear, you’ll need to replace the entire VVT gear assembly. This can be a costly repair, with prices ranging from $400 to $1,000. However, it’s important to address this issue as soon as possible to prevent further damage to your engine. If you’re experiencing VVT gear rattle, I recommend having a qualified mechanic diagnose the problem and recommend the best course of action.
Oil Leaks from Timing Cover and Oil Pressure Switch
Another problem that affects 9th generation Toyota Corollas is oil leaks from the timing cover and oil pressure switch. If you notice oil puddles under your vehicle, a burning oil smell, or low oil levels, a leaky timing cover gasket or oil pressure switch seal could be the culprit.
The timing cover is located at the front of the engine and houses the timing chain or belt. Over time, the gasket that seals the timing cover can deteriorate, allowing oil to leak out. Similarly, the oil pressure switch, which is responsible for monitoring the engine’s oil pressure, can develop leaks around the seal.
To fix these leaks, you’ll need to replace the faulty components. Replacing a timing cover gasket can cost anywhere from $300 to $800, depending on the extent of the leak and the labor involved. Replacing an oil pressure switch is a simpler repair, with costs ranging from $50 to $150.
If you’re experiencing oil leaks in your 9th generation Corolla, I recommend having a qualified mechanic diagnose the problem and recommend the best course of action. Ignoring oil leaks can lead to more serious engine problems down the road, so it’s important to address them as soon as possible.
Suspension Problems
Front Strut Bearing Plate Wear
If you own a 9th generation Toyota Corolla, you might experience some suspension problems, particularly with the front strut bearing plates. The most common symptom of worn bearing plates is a squeaking or creaking noise coming from the front of the vehicle when driving over bumps or uneven surfaces. You might also notice uneven tire wear or a generally poor ride quality.
The front strut bearing plates are responsible for allowing the strut to rotate smoothly as you turn the steering wheel. Over time, these plates can wear down, causing the noise and other symptoms mentioned above. This wear is often accelerated by rough road conditions or frequent driving on uneven surfaces.
To fix worn front strut bearing plates, you’ll need to replace the entire front strut assembly, which includes the bearing plate. This can be a costly repair, with prices ranging from $300 to $800 per side. However, it’s important to address this issue as soon as possible to prevent further damage to your suspension components and ensure a safe and comfortable ride.
Problems Specific To 10th Generation Toyota Corolla (2009-2013)
Engine Problems
Excessive Oil Consumption on 2AZ-FE Engine
One problem that’s specific to the 10th generation Toyota Corolla, particularly those equipped with the 2AZ-FE engine, is excessive oil consumption. If you find yourself frequently adding oil between changes, notice a burning oil smell, or see blue smoke coming from your exhaust, your engine might be consuming too much oil.
The most common cause of excessive oil consumption in the 2AZ-FE engine is defective piston rings. These rings are responsible for sealing the combustion chamber and preventing oil from entering. When they wear down or become damaged, oil can seep past and burn in the engine. Worn valve seals can also contribute to this problem.
To fix excessive oil consumption, you’ll need to replace the piston rings and valve seals, which can be a costly repair. Prices typically range from $1,500 to $3,000, depending on the extent of the damage and the labor involved. To help prevent this issue, I recommend performing regular oil changes with high-quality oil and keeping an eye on your oil level between changes.
Faulty Water Pump
Another problem that can affect 10th generation Toyota Corollas is a faulty water pump. If you notice coolant leaks, engine overheating, or a whining or grinding noise coming from the water pump, it might be time for a replacement.
The water pump is responsible for circulating coolant through the engine to keep it at the proper operating temperature. Over time, the pump’s bearings can wear out, causing leaks and other issues. A failed water pump can cause serious engine damage if left unchecked, so it’s important to address this problem as soon as possible.
To fix a faulty water pump, you’ll need to replace it with a new one. This typically costs between $300 and $800, depending on the labor involved and any additional parts that may be needed. When replacing the water pump, I also recommend inspecting the other cooling system components, such as the radiator and hoses, for any signs of wear or damage.
Electrical Problems
Alternator Failure
Alternator failure is another problem that can affect 10th generation Toyota Corollas. If you notice your battery warning light on the dashboard, dimming headlights, or electrical accessories that aren’t working properly, a failing alternator could be to blame.
The alternator is responsible for charging the battery and powering the vehicle’s electrical system while the engine is running. Over time, the alternator’s bearings can wear out, causing a whining noise and reduced charging output. A failed voltage regulator or diodes can also cause issues with the alternator’s performance.
To fix a failing alternator, you’ll need to replace it with a new one. This typically costs between $300 and $600, depending on the labor involved and the quality of the replacement part. When replacing the alternator, I also recommend inspecting the battery and replacing it if necessary. A weak or failing battery can put additional strain on the alternator, leading to premature failure.
If you’re experiencing any of these problems with your 10th generation Toyota Corolla, I recommend having a qualified mechanic diagnose the issue and recommend the best course of action. Regular maintenance, such as oil changes and cooling system flushes, can help prevent some of these issues from occurring in the first place. However, if you do experience a problem, addressing it promptly can help prevent further damage and keep your Corolla running smoothly for years to come.
Problems Specific To 11th Generation Toyota Corolla (2014-2019)
Transmission Problems
CVT Transmission Issues
One of the most common problems with the 11th generation Toyota Corolla is issues with the continuously variable transmission (CVT). If you experience shuddering or vibration during acceleration, slipping or lack of power, or see a transmission warning light on your dashboard, your CVT might be having issues.
The most common causes of CVT problems in the 11th generation Corolla are a faulty torque converter, worn or damaged CVT belt, or transmission overheating. These issues can be caused by a variety of factors, including manufacturing defects, improper maintenance, or driving habits that put excessive strain on the transmission.
To diagnose CVT issues, a mechanic will typically start by scanning for diagnostic trouble codes (DTCs). Common codes associated with CVT problems in the 11th generation Corolla include P0845, P0846, and P0872, which all relate to issues with the torque converter. Other codes, such as P0868 or P0963, can indicate problems with the CVT belt or pressure control system.
Fixing CVT issues can be costly, with prices ranging from a few hundred dollars for a simple fluid change to several thousand dollars for a complete transmission replacement. In some cases, a simple software update or control module reprogramming can resolve the issue, but this is less common. To help prevent CVT problems, I recommend following the manufacturer’s recommended maintenance schedule, which typically includes regular transmission fluid changes and inspections.
Electrical Problems
Bluetooth and Infotainment System Glitches
Another common problem with the 11th generation Toyota Corolla is glitches with the Bluetooth and infotainment system. If you experience intermittent or lost Bluetooth connection, a freezing or unresponsive touchscreen, or distorted audio, you’re not alone.
These issues are often caused by software bugs or compatibility issues between the infotainment system and your mobile device. In some cases, faulty wiring or connections can also cause problems with the system’s performance. Toyota has issued several technical service bulletins (TSBs) related to these issues, including T-SB-0077-16 and T-SB-0114-18, which provide instructions for updating the system’s software to resolve common glitches.
To fix Bluetooth and infotainment system issues, the first step is typically to update the system’s software. This can often be done for free at a Toyota dealership or by downloading the update from Toyota’s website and installing it yourself. If software updates don’t resolve the issue, you may need to replace faulty components, such as the touchscreen or wiring harness, which can cost anywhere from $500 to $1,500.
Problems Specific To 12th Generation Toyota Corolla (2020-Present)
Exterior Problems
Water Collecting Inside Doors
One problem that has been reported by some owners of the 12th generation Toyota Corolla is water collecting inside the doors. If you hear a sloshing sound when driving, notice a damp or musty odor in the cabin, or experience electrical issues with your windows or locks, water intrusion might be the culprit.
The most common cause of water collecting inside the doors is clogged or missing door drain holes. These holes are designed to allow water to escape from the door, preventing it from collecting inside and causing damage. Over time, these holes can become clogged with dirt and debris, or they may be missing altogether due to a manufacturing defect.
To fix water intrusion issues, the first step is to clean or unclog the door drain holes. This can often be done for free with a simple wire hanger or compressed air. If the drain holes are missing or damaged, they may need to be drilled or replaced, which can cost anywhere from $50 to $200 per door. In some cases, faulty door seals or weather stripping may also need to be replaced to prevent further water intrusion, which can cost an additional $100 to $300 per door.
If you’re experiencing water intrusion issues with your 12th generation Toyota Corolla, I recommend having a qualified mechanic or body shop inspect the vehicle to determine the root cause of the problem. Catching and addressing water intrusion early can help prevent more serious damage to your vehicle’s electrical system and interior.
Soft, Easily Chipped Paint
Another issue that has been reported by some owners of the 12th generation Toyota Corolla is soft, easily chipped paint. If you notice that your vehicle’s paint is chipping or scratching more easily than expected, or if you see rapid paint deterioration, you’re not alone.
The most common cause of soft, easily chipped paint is a thin or low-quality clear coat application from the factory. The clear coat is the top layer of paint that protects the colored base coat and provides a glossy finish. If this layer is too thin or poorly applied, it can be more susceptible to damage from rocks, road debris, and other environmental factors.
To protect your vehicle’s paint and prevent further damage, I recommend applying a paint protection film or ceramic coating. These products create a barrier between your paint and the environment, helping to prevent chips and scratches. Paint protection film typically costs between $500 and $2,000, depending on the coverage and quality of the film. Ceramic coatings are less expensive, with prices ranging from $500 to $1,500, but they may not provide as much protection as a film.
If your vehicle’s paint is already damaged, you may need to have it repaired or repainted. Small chips and scratches can often be touched up for $50 to $200, while larger areas may require a partial or full respray, which can cost anywhere from $500 to $5,000 or more. To help prevent paint damage in the first place, I recommend washing and waxing your vehicle regularly, parking in a garage or covered area whenever possible, and avoiding driving on gravel or unpaved roads when possible.
Suspension Problems
Squeaky or Creaky Rear Suspension
Some owners of the 12th generation Toyota Corolla have reported squeaky or creaky noises coming from the rear suspension, particularly when driving over bumps or uneven surfaces. This issue can be caused by worn or dry suspension bushings, loose or corroded suspension hardware, or a combination of these factors.
Suspension bushings are rubber or polyurethane components that help isolate vibration and allow for smooth movement of the suspension components. Over time, these bushings can dry out, crack, or become brittle, leading to squeaks and other noises. Similarly, suspension hardware, such as bolts and brackets, can become loose or corroded, causing additional noise and potentially compromising the stability of the suspension.
To diagnose suspension noise issues, a mechanic will typically perform a visual inspection of the rear suspension components, looking for signs of wear, damage, or corrosion. They may also use a stethoscope or other diagnostic tools to pinpoint the source of the noise. Common trouble areas include the rear control arm bushings, sway bar bushings, and shock absorber mounts.
Fixing suspension noise issues can be relatively simple and inexpensive in some cases, or more involved and costly in others. Lubricating dry or squeaky bushings with a silicone-based grease can often quiet minor noises, while replacing worn or damaged bushings may be necessary for more severe cases. Replacing a single bushing can cost anywhere from $50 to $200, while a complete suspension overhaul can cost $1,000 or more.
To help prevent suspension noise issues, I recommend having your vehicle’s suspension inspected regularly and replacing any worn or damaged components as soon as possible. Avoiding potholes, speed bumps, and other rough road conditions can also help extend the life of your suspension components and prevent premature wear.
Problems Specific To Toyota Corolla Hybrid (All Generations)
We’ll briefly cover some of the common issues with the Toyota Corolla Hybrid but you can also check out this article for more information.
Electrical Problems
Hybrid System Component Failure
One potential issue that Toyota Corolla Hybrid owners may face is failure of hybrid system components, such as the inverter, converter, or battery pack. While these issues are relatively uncommon compared to conventional powertrain problems, they can be costly to repair when they do occur.
Symptoms of hybrid system component failure can include warning lights on the dashboard, reduced power or fuel economy, or the inability to run the vehicle on electric power alone. These issues can be caused by a variety of factors, including manufacturing defects, wear and tear, or damage from accidents or environmental factors.
Diagnosing hybrid system issues typically requires specialized tools and expertise, as these components are complex and integrated with the vehicle’s electrical and computer systems. Common diagnostic trouble codes (DTCs) associated with hybrid system failures include P0A7F, P0A80, and P3000, which can indicate issues with the inverter, converter, or battery pack, respectively.
Replacing failed hybrid system components can be expensive, with costs ranging from $1,000 to $5,000 or more, depending on the specific component and the extent of the damage. In some cases, the entire hybrid battery pack may need to be replaced, which can cost upwards of $4,000. However, Toyota does offer a warranty on hybrid system components, which can help cover the cost of repairs for up to 8 years or 100,000 miles in some cases.
To help prevent hybrid system issues, I recommend following the manufacturer’s recommended maintenance schedule, which typically includes regular inspections of the hybrid system components and cooling system. Avoiding accidents and environmental damage, such as exposure to extreme temperatures or saltwater, can also help extend the life of these components.
Brake Problems
Rapid Rear Brake Wear
Another issue that some Toyota Corolla Hybrid owners have reported is rapid wear of the rear brake pads and rotors. This issue is related to the design of the hybrid braking system, which uses a combination of regenerative and friction braking to slow the vehicle and recharge the battery pack.
In a hybrid vehicle, the regenerative braking system uses the electric motor to slow the vehicle and generate electricity, which is then used to recharge the battery pack. This process helps improve fuel efficiency and extend the life of the friction brakes. However, it can also lead to uneven brake wear, particularly on the rear brakes, which may not be used as frequently as the front brakes.
Symptoms of rapid rear brake wear can include squealing or grinding noises when braking, reduced braking performance, or the need for frequent brake pad and rotor replacements. Some Corolla Hybrid owners have reported needing to replace their rear brakes as often as every 20,000 to 30,000 miles, which is much sooner than the typical lifespan of conventional brake components.
To diagnose rapid brake wear issues, a mechanic will typically inspect the rear brake pads and rotors for signs of wear, damage, or uneven wear patterns. They may also check the brake fluid level and condition, as well as the operation of the regenerative braking system. In some cases, the brake wear may be considered normal for a hybrid vehicle, while in others, it may indicate a problem with the braking system or the vehicle’s overall balance and alignment.
Replacing worn brake pads and rotors can cost anywhere from $200 to $600 or more, depending on the severity of the wear and the specific components needed. To help extend the life of your Corolla Hybrid’s brakes, I recommend avoiding hard or sudden stops whenever possible, as well as coasting to a stop using the regenerative braking system whenever traffic and road conditions allow. Regular brake inspections and maintenance, such as cleaning and lubricating the brake components, can also help prevent premature wear and ensure optimal braking performance.
While rapid rear brake wear is a potential issue for Toyota Corolla Hybrid owners, it’s important to keep in mind that this is a relatively common issue for hybrid vehicles in general, and not necessarily a defect or design flaw specific to the Corolla. By understanding the unique characteristics of the hybrid braking system and taking steps to maintain and optimize its performance, you can help ensure that your Corolla Hybrid provides reliable, efficient, and safe braking for years to come.
Closing Thoughts
As we’ve seen, each generation of the Toyota Corolla has its own set of common problems and issues to watch out for. While some of these problems, like oil consumption and transmission issues, can be costly to repair, most are relatively minor and can be prevented or addressed with regular maintenance and prompt attention.
Overall, the Corolla is a long-lasting and reliable vehicle but based on the information we’ve covered, I personally recommend opting for a 9th or 10th generation Corolla if you’re in the market for a used model, as these seem to have fewer major issues compared to some of the newer generations.
However, regardless of which Corolla you choose, being aware of these common problems and staying on top of maintenance can help ensure that your vehicle provides reliable, efficient transportation for years to come. Thanks for reading, and happy motoring!
