{Top 5 Fixes} Lexus Rx 300 Transmission Problems From [1999, 2000-2003]

Last Updated on September 25, 2023 by Robert Wilson

There have been numerous reports of transmission problems with the Lexus RX 350, dating back to when the vehicle was first released in 2008.

Many owners have complained of their cars slipping out of gear, especially when accelerating from a stop.

If you’re experiencing any type of transmission problem with your RX 350, it’s best to get it checked out by a professional or try to fix the issues by yourself if possible.

Transmission repairs can be expensive, so catching the problem early is key.

With proper care and maintenance, your Lexus RX 350 should give you many years of trouble-free driving pleasure.

Lexus Rx 300 Common Issues & Fixes

Engine Misfire:

Problem: Your car has high mileage and has started to misfire regularly.

Solution: Engine misfires can be caused by various factors, such as faulty spark plugs, ignition coils, or fuel injectors. Start by checking and replacing any worn-out spark plugs or ignition coils. If the issue persists, consider having the fuel injectors cleaned or replaced. It’s also a good idea to perform a compression test and check for any vacuum leaks.

Car Idling Issues:

Problem: The car is experiencing irregular idling or stalls while idling.

Solution: Irregular idling can be caused by a malfunctioning idle air control valve (IACV) or a dirty throttle body. Inspect the IACV and clean or replace it if necessary. Also, clean the throttle body to ensure smooth airflow. Additionally, check for any vacuum leaks or clogged air filters, as they can affect idling performance.

Rough Idling and Backfiring:

Problem: The engine idles roughly, and you hear occasional backfiring noises.

Solution: Rough idling and backfiring can be indicative of an issue with the ignition system, such as worn spark plugs, a faulty distributor, or incorrect ignition timing. Start by replacing the spark plugs and inspecting the distributor for any signs of wear. If needed, adjust the ignition timing according to the manufacturer’s specifications.

Long Stopping Time:

Problem: The car takes a long time to come to a complete stop after applying the brakes.

Solution: This issue might be due to worn-out brake pads or brake rotors. Inspect the brake pads for thickness and wear. If they are thin or damaged, replace them with new brake pads. Also, check the brake rotors for any warping or uneven surfaces. If necessary, have the rotors resurfaced or replaced.

Steering Wheel Vibration:

Problem: You experience vibrations in the steering wheel, especially at higher speeds.

Solution: Steering wheel vibration could be caused by various factors. Start by checking the tire balance and alignment. Imbalanced or misaligned tires can lead to vibrations. If the tires are in good condition, inspect the suspension components for any wear or damage. Worn-out tie rods, ball joints, or bushings might need replacement.

Remember, while these solutions address common issues, it’s essential to consult a qualified mechanic or dealership for a thorough inspection and proper diagnosis of the problems in your Lexus RX 300.

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Lexus RX 300 Transmission Problems (1999-2003)

The Lexus RX 300, a hallmark of luxury and comfort, has left an indelible mark on the SUV landscape during the years 1999 to 2003.

While renowned for its reliability, even this esteemed vehicle has encountered its share of transmission difficulties.

In this part, we will delve into Transmission problems specific to each model year (1999, 2000, 2001, 2002 & 2003) of the Lexus RX 300 along with solutions.

1999 Lexus RX 300 Transmission problems

Problem: Delayed or Erratic Shifting
Causes: Worn transmission control module, sensor glitches, fluid inconsistencies.
Solutions: Diagnose and replace malfunctioning components, update the transmission control module software, and conduct a comprehensive fluid flush.

Problem: Torque Converter Troubles
Causes: Damaged clutch plates, worn bearings, fluid contamination.
Solutions: Inspect and replace damaged parts, perform a fluid flush, and ensure proper torque converter installation.

2000 Lexus RX 300 Transmission problems

Problem: Transmission Fluid Leaks
Causes: Worn seals, gaskets, or pan; damaged transmission lines.
Solutions: Locate and address leakage sources, replace worn parts, and ensure proper tightening. Regular fluid checks are essential to prevent leaks.

Problem: Shifting Issues
Causes: Worn clutch plates, solenoid malfunctions, valve body complications.
Solutions: Depending on severity, replace worn components, recalibrate the transmission control module, and adhere to recommended fluid change intervals.

2001 Lexus RX 300 Transmission problems

Problem: Unresponsiveness or “Limp Mode”
Causes: Transmission control module malfunctions, sensor breakdowns.
Solutions: Diagnose and rectify transmission control module issues, replace faulty sensors, and ensure timely software updates.

Problem: Unsettling Clunking Noises
Causes: Worn U-joints, damaged driveshafts, loose components.
Solutions: Examine and replace damaged parts, secure loose components, and adhere to a meticulous maintenance routine.

2002 Lexus RX 300 Transmission problems

Problem: Transmission Fluid Contamination
Causes: Water infiltration, coolant leaks, improper fluid mixing.
Solutions: Identify and address the source of contamination, perform a thorough fluid flush, and fix any coolant leaks.

Problem: Sluggish Acceleration
Causes: Clogged filters, worn-out spark plugs, low transmission fluid.
Solutions: Replace air and fuel filters, upgrade spark plugs, and ensure proper fluid levels for optimal acceleration.

2003 Lexus RX 300 Transmission problems

Problem: Transmission Overheating
Causes: Inadequate fluid levels, towing heavy loads, cooling system concerns.
Solutions: Maintain proper fluid levels, address cooling system issues, and consider adding an aftermarket transmission cooler for heavy-duty towing.

Problem: Electrical Connectivity Glitches
Causes: Faulty wiring, damaged connectors, transmission control module failure.
Solutions: Thoroughly inspect wiring and connectors, repair or replace damaged components, and if necessary, install a new transmission control module.

Tracing the evolution of the Lexus RX 300 from 1999 to 2003 unravels a range of transmission challenges, each with its own set of causes and solutions.

Staying proactive through routine maintenance, swift diagnosis, and professional guidance ensures a seamless and refined driving experience.

The Lexus RX 300, although susceptible to transmission hiccups, remains a symbol of luxury and performance when nurtured with the care it merits.

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Lexus RX 300 Used Values

Let’s know the used values of a Lexus RX 300 for the specified model years (1999-2003) along with approximate mileage ranges.

Please note that these values can vary based on factors such as location, condition, features, and market trends.

Here’s a table with approximate information:

Model YearMileage RangeAverage Market Price
1999150,000 – 200,000 miles$2,000 – $4,000
2000140,000 – 190,000 miles$2,500 – $4,500
2001130,000 – 180,000 miles$3,000 – $5,000
2002120,000 – 170,000 miles$3,500 – $5,500
2003110,000 – 160,000 miles$4,000 – $6,000

These figures are rough estimates and are meant to provide a general sense of the used market values for the specified Lexus RX 300 model years.

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2010 Lexus Rx 300 Reviews

The 2010 Lexus RX 300 is a luxurious SUV that seats up to five passengers. It has a standard 3.5-liter V6 engine that produces 270 horsepower and 248 lb-ft of torque. The RX 300 comes standard with front-wheel drive, but all-wheel drive is available as an option.

It has a six-speed automatic transmission and gets an EPA-estimated 19 mpg in the city and 26 mpg on the highway with front-wheel drive. All-wheel drive reduces those numbers slightly to 18 mpg in the city and 25 mpg on the highway. Standard features include leather seats, heated front seats, a sunroof, Bluetooth connectivity, and a premium sound system.

Safety features include traction control, stability control, antilock brakes, front side airbags, full-length side curtain airbags, and active headrests.

2011 Lexus Rx 350

The RX 350 has been very popular since it was introduced, thanks to its luxurious interior, smooth ride, and strong performance. For 2011, the Lexus RX 300 receives a few updates, including a new grille design, updated headlights, and revised taillights. Inside, there’s a new center stack design with an improved navigation system.

Under the hood, the 3.5-liter V6 engine gets a power boost from 275 horsepower to 295 horsepower. With its stylish looks and refined interior, the 2011 Lexus RX 300 is sure to continue being one of the most popular SUVs on the market.

1999 Lexus Rx300 Transmission Recall

The 1999 Lexus RX300 is subject to a transmission recall. According to the National Highway Traffic Safety Administration, the recall affects approximately 1,300 vehicles. The problem lies in the vehicle’s transmission cooler line, which can develop a leak.

This can cause the transmission fluid to overheat, potentially leading to transmission failure. If you own a 1999 Lexus RX300, it is important to be aware of this recall and have your vehicle serviced as soon as possible. For more information, you can visit the NHTSA website or contact your local Lexus dealer.

Lexus Rx300 Transmission Replacement Cost

If your Lexus RX300 needs a new transmission, you’re likely wondering how much it will cost. Here’s a look at the average cost of a transmission replacement for this vehicle.

According to RepairPal, the average cost of a transmission replacement for the 1999 Lexus RX300 is $3,610.

This cost can range from $2,900 to $4,330 depending on the specific year and model of your vehicle.

The labor costs associated with this repair are typically between $1,200 and $1,500, while the parts costs are usually between $2,410 and $2,830. If you need to have your 1999 Lexus RX300’s transmission replaced, be prepared to pay around $3,610 on average.

This repair can be quite costly due to the involved labor and parts costs. However, it’s important to note that the exact cost will vary depending on the specific year and model of your vehicle.

2000 Lexus Rx300 Transmission Shift Solenoid

If your 2000 Lexus RX300 has an automatic transmission, then it has shift solenoids. These solenoids are responsible for controlling the flow of transmission fluid in order to engage the various gears in the transmission. Over time, these solenoids can fail and need to be replaced.

If you’re experiencing shifting problems with your 2000 Lexus RX300, then it’s possible that one or more of the shift solenoids have failed. You’ll need to have the transmission diagnosed by a qualified technician in order to determine which solenoid(s) need to be replaced. In most cases, all of the shift solenoids will need to be replaced at the same time.

Replacing the shift solenoids on your 2000 Lexus RX300 is not a difficult task, but it does require some special tools and knowledge. If you’re not comfortable performing this repair yourself, then I recommend taking your vehicle to a qualified mechanic or Transmission Shop.

Lexus Rx 350 Transmission Problems

Do Lexus Rx 300 Have Transmission Problems?

Yes, the Lexus RX300 does have some transmission problems. In fact, some of the models are recalled by the Lexus!

What is the Most Common Problem With Lexus Rx 300?

The most common problem with the Lexus RX 300 is transmission failure. This typically occurs around 100,000 miles and can be quite costly to repair. Other common issues include engine oil leaks, brake problems, and suspension issues.

How Long Does Lexus Rx300 Transmission Last?

The average transmission life expectancy of a Lexus RX300 is around 10 years or 150,000 miles. However, with proper care and maintenance, your transmission can last much longer. Many factors can affect the lifespan of your transmission, such as driving habits, type of terrain, and weather conditions.

How to keep Lexus Rx300 Transmission Good?

If you want your Lexus RX300 transmission to last as long as possible, it’s important to take good care of it. Regular maintenance is key to keeping your transmission in good shape. Be sure to have the fluid changed every 30,000 miles or so and have the filter replaced every other year.

It’s also a good idea to have your transmission checked by a mechanic every few years to make sure everything is in working order. If you live in an area with harsh winters, it’s especially important to take care of your transmission. The cold weather can cause the fluid to thicken and potentially damage the internals of the system.

To help prevent this, consider installing a transmission warmer. This will keep the fluid at a consistent temperature and help extend the life of your transmission. By following these simple tips, you can help ensure that your Lexus RX300 has a long and healthy life.

How Much is It to Replace a Transmission in a Lexus Rx300?

The answer depends on a few factors, including the type of transmission (automatic or manual), the year of your vehicle, and whether you do the work yourself or hire a professional.

On average, you can expect to pay between $3,000 and $4,000 to replace an automatic transmission in a Lexus RX350.

If you have a manual transmission, the cost will be on the lower end of that range. If you need to replace the entire transmission system (including the torque converter and other components), you can expect to pay closer to $5,000.

Of course, these are just ballpark figures – the actual cost will vary depending on your specific circumstances.

If you’re handy with tools and feel confident doing the work yourself, you can save a significant amount of money by replacing the transmission yourself.

However, if you don’t have experience working on cars, it’s probably best to leave this job to a professional mechanic.

The Lexus RX 350 is a luxurious SUV that offers drivers a smooth and comfortable ride. However, some owners have reported transmission problems with their vehicles.

These problems can cause the vehicle to jerk or hesitate when shifting gears, and they can also lead to premature wear on the transmission components.

If you’re experiencing these issues with your RX 300 or 350, make sure to follow the troubleshooting tips and fix the issues!


  • Robert Wilson

    Introducing Robert Wilson, your go-to source for automotive technical solutions. With 5 years of industry experience and a mechanical engineering background, Robert's expertise was honed at the heart of Ford Motors in Michigan back in 2010. Join him on this blog as he shares his knowledge and practical fixes to keep your vehicles running at their best.

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