2019 Lexus NX300h

Here’s a breakdown of common issues and complaints related to the 2019 Lexus NX 300h.

The 2019 Lexus NX 300h is a luxury hybrid compact SUV known for its fuel efficiency and comfortable ride. It features a 2.5-liter inline-4 engine paired with an electric motor, producing a combined 194 horsepower. The NX 300h utilizes an Electronically Controlled Continuously Variable Transmission (ECVT). Owners often appreciate the vehicle’s smooth ride and luxurious interior, but some dislike the infotainment system’s touchpad interface and the somewhat limited cargo space.

Electric Motor

Electric Motor

• Electric Motor Failure
  • Description/Symptoms: The hybrid system malfunctions, often indicated by warning lights on the dashboard. The vehicle may experience a loss of power, reduced fuel efficiency, or complete failure to start.
  • Solution: Diagnosis by a certified Lexus technician to identify the specific component failure (e.g., motor, inverter, or battery pack). Replacement of the faulty part is usually necessary.
  • Estimated Cost to Fix: $4,000 - $8,000+ (depending on the component replaced, including labor).
  • Recalls: None Found

Transmission

Electronically Controlled Continuously Variable Transmission (ECVT)

• ECVT Jerky Shifting/Hesitation
  • Description/Symptoms: The transmission exhibits rough or jerky shifting, especially during acceleration or deceleration. Some owners report a hesitation or delay in response when shifting gears.
  • Solution: Initial inspection may involve checking the transmission fluid level and condition. A software update to the transmission control module (TCM) may resolve the issue. If the problem persists, a more thorough inspection of the transmission may be required, potentially leading to valve body repair or replacement.
  • Estimated Cost to Fix: $100 - $300 (software update) / $1,000 - $3,000+ (valve body repair/replacement).
  • Recalls: None Found

Suspension

• Rear Suspension Noise
  • Description/Symptoms: Clicking, clunking, or rattling noises emanating from the rear suspension, particularly when driving over bumps or uneven surfaces.
  • Solution: Inspection of the rear suspension components, including the shocks, struts, bushings, and sway bar links. Replacement of worn or damaged parts is typically required.
  • Estimated Cost to Fix: $200 - $800+ (depending on the parts needing replacement and labor).
  • Recalls: None Found

Electrical

• Infotainment System Freezing/Rebooting
  • Description/Symptoms: The infotainment system sporadically freezes, becomes unresponsive, or spontaneously reboots. This can affect navigation, audio, and climate control functions.
  • Solution: A software update from the dealership is the first step. If that doesn’t work, the infotainment unit may need to be replaced.
  • Estimated Cost to Fix: $0 - $200 (software update) / $1,000 - $2,000+ (infotainment unit replacement).
  • Recalls: None Found
• Battery Drain Issues
  • Description/Symptoms: Premature battery drain, causing difficulty starting the vehicle or requiring frequent jump starts. This may occur even when the vehicle is not in use.
  • Solution: Thorough testing of the battery and charging system to identify any parasitic draws. Replacement of the battery or repair of the charging system may be necessary.
  • Estimated Cost to Fix: $150 - $300 (battery replacement) / $100 - $500+ (charging system repair).
  • Recalls: None Found

Exterior

• Automatic Liftgate Malfunction
  • Description/Symptoms: The automatic liftgate fails to open or close properly, or may become stuck in either position. This can be caused by a faulty motor, sensor, or latch mechanism.
  • Solution: Inspection of the liftgate motor, sensors, and latch. Replacement of the faulty component is typically required.
  • Estimated Cost to Fix: $300 - $1,000+ (depending on the specific component and labor).
  • Recalls: None Found

Interior

• Rattling/Buzzing Noises from Dashboard or Door Panels
  • Description/Symptoms: Annoying rattling or buzzing noises emanating from the dashboard or door panels while driving, especially on rough roads.
  • Solution: Identification and securing of the source of the noise. This may involve tightening loose screws, adding foam padding, or replacing damaged clips or fasteners.
  • Estimated Cost to Fix: $50 - $300+ (depending on the complexity and labor involved).
  • Recalls: None Found

Summary

The 2019 Lexus NX 300h, while generally reliable, can experience issues with the electric motor, transmission, infotainment system, and suspension. The severity of these issues can range from minor inconveniences to more significant repairs. The estimated cost to fix these problems can vary greatly depending on the specific component involved and the extent of the damage, but can range from a few hundred to several thousand dollars. Owners should be aware of these potential problems and have the vehicle inspected regularly to address any issues promptly.