Automatic Transmission Control Module Problems of Hyundai Elantra

The vehicle has experienced ongoing powertrain and electrical malfunctions over several months. The most common symptoms include being stuck in 4th gear (limp mode), complete loss of rpm and speedometer readings, and illumination of the check engine and esc lights. Most recently, while traveling at approximately 10 mph, the vehicle experienced a sudden loss of both acceleration and braking. The brake pedal became stiff and unresponsive, and the car had to coast to a stop without driver control. This posed a serious safety risk to myself and nearby traffic. These issues have persisted across multiple service visits to ricart Hyundai in groveport, ohio. That dealership has replaced the crankshaft position sensor three times, the powertrain control module (pcm), and the battery, but the underlying problems remain unresolved. A technician at the dealership was able to reproduce the stalling event during a test drive. Despite that, the dealership has refused to proceed with further diagnostics unless I pay for an oil change, even though previous inspections by their own staff found no visible leaks and confirmed the oil level was sufficient at the time. They have also revoked complimentary access to a loaner vehicle despite the unresolved and unsafe condition of the car. The vehicle remains available for inspection. The problem has been confirmed by a dealership, has occurred repeatedly, and continues to pose a safety concern. Warning lights and gauge failures typically appear when the issue occurs.

See all problems of the 2017 Hyundai Elantra 🔎.

The contact owns a 2022 Hyundai Elantra. The contact stated that he attempted to start the vehicle and felt the vehicle shaking. The contact then stated that he attempted to start the vehicle again when the engine revved and misfired. The check engine warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed that cylinder #2, engine, and powertrain control module (pcm) needed to be replaced. Additionally, the ecu and tcu needed to be updated. The vehicle was not repaired. The contact stated that the dealer was unable to repair the vehicle because the recalls were originated from puerto rico. The manufacturer was notified of the failure and informed the contact that the recall could not be honored and provided a case number. The failure mileage was approximately 25,000.

See all problems of the 2020 Hyundai Elantra 🔎.

According to the Hyundai dealership, located in corona, CA, the Hyundai Elantra's are known for the ignition coil to go out. This is also not covered under warranty and list below of why it should this can cause engine misfiring in a vehicle whose ignition coils have failed. Trying to start the engine of such a vehicle will result in engine misfiring that sounds like a coughing, sputtering noise. When driving at high speeds, jerking and spitting will be seen in the behavior of the vehicle. A vehicle with a failed ignition coil will also result in vibration when it is idling at a stop sign or light. Driving with a faulty coil pack can damage other components of the engine. Also most cars will register a faulty coil and immediately stop gas feed to that cylinder. However, damage may be caused if the fault isn’t registered by the pcm and the dead cylinder continues to receive gas. Your catalytic converter and oxygen sensors may become contaminated by raw gas and need to be replaced. This can be dangerous if it is a known common issue in a Hyundai Elantra and cause an accident when travelling at a higher speed. I was at a stop when this problem occurred for me but was able to safely move out of the way.

My car check engine light came on with a code p0711 car was jumping slipping there's been a tech bulletin on this part since June 2014. I've experienced my transmission slipping for the past two years and always been told that nothing was wrong with it utilize an obd-ii scanner to check for a stored p0711 trouble code check transmission fluid level and compare to manufacturer preset levels check transmission fluid quality check transmission pan for clutch or other debris, which, if found, may require a complete transmission rebuild check for transmission fluid leaks visually check for damaged, corroded, or loose electrical wires and connectors unplug transmission temperature sensor from electrical connector and test for reference voltage, which is typically 5 volts but can vary depending on vehicle make and model check sensor ground wire test sensor resistance and compare to manufacturer recommendations disconnect the ecm/pcm electrical connector to test resistance as well as circuit continuity between the temperature sensor and ecm/pcm.

See all problems of the 2013 Hyundai Elantra 🔎.

While leaving a parking lot in the city, in drive, car would not shift into next gear, unable to go above 25mph; with additional pressure to gas sending rpms high without altering speed or shifting gear. After finding a place to park, no cel. Upon restarting car, cel is illuminated, and car will not shift into park, reverse, or neutral, and upon putting into drive the car jerks forcibly. The shift indicator on the dash also fails to register p, r or n. Only drive. Had car towed and left at autorepair shop and the next morning they were able to pull code u0101 from diagnostic testing, and after plugging the tcm back in after examining pins and connectors, the transmission returned to normal function.

See all problems of the 2010 Hyundai Elantra 🔎.

While driving cruising at 45mph all of a sudden the vehicle felt like it went into neutral and the rpms went up to 4000 when left of the gas and gave it gas shifted back into gear. Also when you go up a hill and get to cruising speed the vehicle hangs in low gear and high rpms when let off it will up shift this is an intermittent problem. Took it to dealer 3 times on the 3rd time they kept it overnight and the mechanic finally felt it and agreed it "hangs in gear" he said "does not kick down smoothly and seems like the tcm is confused and takes awhile to decide what gear to go into". He also say " it seems worse in active eco mode and when he shifts it manually it seems fine". There has been a significant reduction in gas mileage.

See all problems of the 2014 Hyundai Elantra 🔎.

Car accelerated beyond control to ~90 mph before steering lock and car went into jersey barriers. According to TSB from Hyundai this is an electrical component know issue call a tps(throttle position sensor) for 2001 Hyundai Elantra's with a "1" in the 10th position of the VIN number. The TSB number is 01-36-027. Before we contact Hyundai , I wanted to see if this was on recall or safety check and I was not able to find any info.

See all problems of the 2001 Hyundai Elantra 🔎.

On 3/4/2005, while driving on an interstate highway, the car stalled and wouldn't immediately start. It did start later. I was towed to a dealer, which replaced the crankshaft position sensor. On 4/21/2005, I got to my parked car to find that it wouldn't start for 10-15 minutes. The symptoms were very similar to the March 4 incident, without the stalling out on the highway to preface it. The following day, I took the car to a different dealer, where they tested the car but made no repairs. I wrote Hyundai. A regional representative contacted me and asked that Hyundai have an attempt to fully investigate. I had an appointment at the dealer I purchased the car from, and the regional representative contacted them to coordinate examination of the car. The dealer had one of their top electrical systems people examine the car in consultation with the regional office on 5/7/2005. They could find no problems. On 1/3/2006, the car stalled out on an interstate highway and wouldn't start immediately. A dealer replaced the crankshaft position sensor. On 1/13/2006, the car stalled out on an interstate highway and wouldn't start immediately. A dealer examined it and consulted with Hyundai tech line but did nothing. I sent Hyundai another letter. They asked to be able to send a regional technician to look at it. A dealer replaced the power control module and checked connections per directions of the regional technician. Hyundai deemed the car okay because the technician went for a 15 mile test drive; the car has had three potentially fatal incidents in 22,491 miles. A representative at the regional office said the they replaced the power control module based on incidents in other cars, where the error code for the crankshaft position sensor has come up. He said this was a "precautionary measure," that the technician wasn't able to verify the component that failed, and could not explain why the power control module wasn't suggested earlier.

See all problems of the 2004 Hyundai Elantra 🔎.

The ball joints cracked which caused the front left tire to become detached from the vehicle while driving approximately 70 mph on the freeway. The consumer contacted the manufacturer but they have not done anything about the issue. The vehicle's tcm/ecm software failed which caused the transmission to slip/surge while driving. The vehicle would not go into reverse due to an internal failure. The dealer replaced the a/t assembly and flushed the a/t fluid. The left sunvisor was coming apart. The visor clips broke and as a result they could not hold the visor in a stable position. Seat belt bolt cover broke. The passenger side door lock was hard for the passenger to unlock from the driver's side. The dealer replaced the door latch and actuator assembly. The vehicle's heater took about an hour to effectively warm the vehicle. The dealer determined that the blend door was loose at the actuator.