By Justin The 2020 Hyundai Elantra has faced transmission issues, including delayed shifts, surging RPMs, slipping, jerking, and sudden power loss. Causes range from software malfunctions to faulty clutch systems. Fixes involve checking fluid levels, replacing filters, or transmission rebuilds or replacements. Hyundai has issued recalls and service bulletins for certain models Owners have reported problems at low mileage, leading to frustration and discussions about reliability.
Symptoms
- Trouble Shifting Gears: Drivers have experienced difficulty in shifting gears, which can affect the driving experience and vehicle control.
- Delayed Acceleration: There is a noticeable delay when the vehicle is accelerating, which can be particularly concerning when merging onto highways or changing speeds.
- Stalling: Some Elantra models have been reported to stall, which can pose a significant safety risk, especially if it occurs while driving at high speeds.
- Sudden Loss of Power: This symptom can be alarming as it may happen without warning, leaving the driver with reduced control over the vehicle.
- Grinding Noises: Unusual grinding sounds coming from the transmission are indicative of internal issues that need immediate attention.
- Jerky or Shuddering Movements: The car may jerk or shudder, especially during gear changes, which suggests a problem with the transmission’s operation.
- Unpredictable Shifting: The transmission may shift too early or too late, or even shift into neutral unexpectedly while driving.
- Poor Fuel Economy: If the transmission is not shifting gears efficiently, it can lead to increased fuel consumption.
- Overheating: Transmission fluid overheating can be a sign of transmission issues, often accompanied by a burning smell.
- Noisy in Neutral: Strange noises when the car is in neutral could indicate a problem with the transmission.
What Causes transmission Problems in the 2020 Hyundai Elantra?
The transmission problems in the 2020 Hyundai Elantra are caused by several factors:
- Software Malfunctions: The transmission software may malfunction, causing the transmission to unexpectedly shift into neutral, which can lead to sudden loss of power while driving. This issue is particularly dangerous as it can occur at high speeds, increasing the risk of accidents.
- Faulty Clutch Systems: Defective clutch systems have been reported to cause jerky or harsh shifting, primarily when shifting from a stop. Problems may include a damaged or worn clutch, which sometimes necessitates a total transmission replacement.
- Malfunctioning Transmission Control Module or Clutch Actuator: These components can create difficulty in shifting gears. The issues can sometimes be resolved by recalibrating the transmission control unit or replacing parts of the clutch system.
- Design Flaws in the Dual-Clutch Transmission (DCT): The DCT in some Hyundai models has been noted for hesitation or shuddering when accelerating from a stop, particularly in hot weather conditions, which causes the dual-clutch system to overheat and the clutch to slip.
How to Diagnose 2020 Hyundai Elantra Transmission Problems
To diagnose transmission problems in a 2020 Hyundai Elantra, follow these steps:
1. Check for Warning Lights and Error Codes:
- Start by checking the dashboard for any illuminated warning lights such as the Check Engine Light or the transmission temperature warning light.
- Use an OBD-II scanner to read any diagnostic trouble codes (DTCs) from the Transmission Control Module (TCM). Codes related to transmission issues might include P0730, P0731, P0741, P0867, and others.
2. Visual Inspection:
- Inspect the transmission fluid level and condition. Low fluid levels or dirty fluid can cause transmission problems. The fluid should be at the correct level and appear clean and bright red.
- Check for any leaks under the vehicle. Transmission fluid leaks can lead to low fluid levels, which can cause shifting issues or overheating.
3. Road Test:
- Conduct a road test to observe the transmission’s behavior in real-world driving conditions. Pay attention to any delays in gear shifting, unusual noises, or jerking movements during shifts.
- Monitor the vehicle’s performance during acceleration and deceleration to see if the transmission slips or hesitates.
4. Check Transmission Software:
- Verify that the transmission software is up to date. Hyundai has issued updates for the transmission control software to address some known issues. If necessary, have the software updated at a dealership.
5. Professional Diagnostic Tests:
- If the above steps do not resolve the issue, consider having a professional mechanic or a Hyundai dealership perform a more comprehensive diagnostic test. This may include checking the transmission pressure, inspecting the shift solenoids, and evaluating the transmission control module.
- A professional might also perform a transmission fluid pressure test to check for any internal mechanical failures.
6. Review Technical Service Bulletins (TSBs) and Recalls:
- Check for any TSBs or recalls that might be relevant to your vehicle’s transmission issues. Hyundai has issued TSBs and recalls for certain transmission problems, which may include software updates or component replacements.
How to Fix 2020 Hyundai Elantra Transmission Problems – Step by step
To fix the transmission problems in a 2020 Hyundai Elantra, follow these step-by-step instructions:
Step 1: Diagnose the Issue
- Begin by using an OBD-II scanner to read any diagnostic trouble codes (DTCs) from the Transmission Control Module (TCM). This will help identify specific issues such as solenoid failures or other transmission-related errors.
Step 2: Check and Replace Transmission Fluid
- Check the transmission fluid level and quality. If the fluid is dirty or low, replace it. Ensure you use the recommended type of transmission fluid for Hyundai vehicles.
- To replace the fluid, drain the old fluid, replace the transmission filter if necessary, and refill with new fluid.
Step 3: Inspect and Replace Transmission Solenoids
- If the diagnostic codes or symptoms suggest a solenoid issue, consider testing or replacing the transmission solenoids. These are crucial for controlling the flow of fluid and the shifting of gears.
Step 4: Update Transmission Software
- Check if there are any software updates available for the transmission control module. Hyundai dealers can update the software to fix bugs that affect transmission performance.
Step 5: Reset and Relearn Transmission Adaptations
- After any major transmission repair or software update, reset the transmission adaptations. This can sometimes be done by disconnecting the battery or using a specialized scan tool. After resetting, perform a relearning procedure to ensure the transmission adapts to its new settings.
Step 6: Check Mechanical Components
- Inspect mechanical components such as the gear selector and clutch system. Adjust or replace the gear selector if it’s rusty or stuck. If the clutch system is faulty, consider recalibrating the transmission control unit or replacing clutch system parts.
Step 7: Test Drive and Monitor
- After performing the repairs and adjustments, take the vehicle for a test drive to monitor the transmission’s performance. Check for smooth shifting and responsiveness.
Step 8: Consult a Professional
- If the problem persists after trying the above steps, or if the repairs are beyond your skill level, consult a professional mechanic or a Hyundai dealership. They can provide more advanced diagnostics and repairs.
Repairing 2020 Hyundai Elantra Transmission Problems: DIY or Professional Help?
When it comes to repairing transmission problems in the 2020 Hyundai Elantra, the decision between DIY or seeking professional help depends on the nature of the problem, the owner’s mechanical expertise, and the availability of specialized tools.
DIY Repairs
- DIY repairs can be cost-effective for simple issues such as changing transmission fluid or filters, especially if the owner has mechanical knowledge and the necessary tools.
- Transmission repairs can be complex and may require specialized diagnostic equipment. Incorrect repairs can lead to further damage or voiding the vehicle’s warranty.
Professional Help
- Professionals have the expertise, tools, and access to Hyundai’s technical information to diagnose and repair complex issues accurately. They can also perform software updates and handle warranty-covered repairs.
- Professional services can be more expensive than DIY, but they provide peace of mind and often guarantee their work.
Considerations for DIY
- Skill Level: Only attempt DIY repairs if you have a good understanding of automotive mechanics and transmissions.
- Tools: Ensure you have the right tools, including an OBD-II scanner, to diagnose error codes and a set of hand tools for any physical repairs.
- Information: Use reliable sources for guidance, such as service manuals or instructional videos from trusted mechanics like Scotty Kilmer.
Considerations for Professional Help
- Warranty: If your Elantra is still under warranty, it’s best to go to a Hyundai dealership for any transmission-related repairs to avoid voiding the warranty.
- Complexity: For issues like software malfunctions or internal mechanical failures, professional diagnosis and repair are recommended.
- Safety: Transmission problems can affect the safety of your vehicle, so if you’re unsure about the repair, it’s safer to consult a professional.
2020 Hyundai Elantra Transmission Problems Repairing Cost
The cost of repairing transmission problems in a 2020 Hyundai Elantra can vary widely depending on the nature of the issue.
- Transmission Fluid Change: The cost for a transmission fluid change is estimated between $153 and $164. A slightly higher range for a transmission fluid change, with a fair repair range of $251 to $322, which includes parts and labor.
- Transmission Replacement: If the transmission needs to be replaced, the cost could be over $3,500 depending on the vehicle. This is a more significant repair that would likely be handled by a professional at a dealership or a specialized repair shop.
- Transmission Repair and Rebuild: Deciding whether to rebuild or replace a bad transmission can be difficult. The cost of repair will depend on which parts are bad or failing. During a rebuild, all parts of the transmission are disassembled, cleaned, inspected, and repaired as necessary.
- Transmission Service Specials: Some dealerships offer transmission repair specials and transmission parts discounts, which can help reduce the cost of repairs.
- Warranty Coverage: If the vehicle is still under warranty, some transmission repairs may be covered, which can significantly reduce the out-of-pocket expenses for the owner.
- Software Updates: Hyundai has developed new engine monitoring technology called a “knock sensor detection system,” which is being installed on certain vehicles through a free software update performed by any Hyundai dealer. This may address some transmission issues related to software malfunctions.
Preventing Future 2020 Hyundai Elantra Transmission Problems
To prevent future transmission problems in the 2020 Hyundai Elantra, consider the following steps:
Regular Transmission Fluid Checks and Changes
- Regularly check and change the transmission fluid as recommended. For the 2020 Hyundai Elantra, it’s advised to change the transmission fluid every 30,000 miles. Ensure you use the correct type of fluid specified for your model, such as FRAM – Full Synthetic Dexron VI Automatic Transmission Fluid for certain Elantra models.
Software Updates
- Keep the vehicle’s software up to date. Hyundai has streamlined the update process, which can be done for free at home using Hyundai’s update tools for navigation and software. Regular updates can prevent software malfunctions that might affect the transmission.
Professional Inspections
- Have the transmission inspected by a professional, especially if you notice early signs of trouble such as slipping, delayed gear engagement, or unusual noises during shifts. Some newer Hyundai models may not have a dipstick for checking the transmission fluid, so professional assistance might be necessary.
Use of Diagnostic Tools
- Utilize OBD-II scanners to diagnose any transmission-related error codes early. This can help identify issues before they become severe.
Adhering to a Maintenance Schedule
- Follow the maintenance schedule provided in the Hyundai Elantra’s owner’s manual. Regular maintenance can prevent many common issues.
Addressing Recalls and Service Campaigns
- Stay informed about any recalls or service campaigns that may affect your vehicle. Hyundai has issued recalls and service campaigns that may include critical updates for the transmission system.
Driving Habits
- Adjust driving habits to reduce strain on the transmission. Avoid aggressive driving and allow the car to warm up before driving aggressively.
Can I drive my 2020 Hyundai Elantra with a transmission problem?
No, you should not drive 2020 Hyundai Elantra with a transmission problem. Transmission issues can lead to several risks and further damage to the vehicle.
Transmission problems can cause unpredictable vehicle behavior such as sudden loss of power, delayed response in acceleration, or failure to engage gears properly.