The Lexus RX (2012-2016) represents a luxurious, comfortable SUV that has garnered a reputation for reliability and smooth performance. Known for its quiet cabin, advanced features, and comfortable ride, the RX is an appealing option for those looking for a high-quality mid-size SUV. However, as with any vehicle, even Lexus’s renowned reliability doesn’t make it immune to certain issues. This article will take an in-depth look at the most common problems with the 2012-2016 Lexus RX, along with a guide on what to look for when buying one and what to expect in terms of ownership costs.
Common Problems with the 2012-2016 Lexus RX
1. Transmission Shifting Issues
One of the more notable issues with the 2012-2016 Lexus RX involves its transmission, especially in the RX 350 model with its six-speed automatic transmission. Some owners have reported rough or delayed shifting, particularly when accelerating from a stop or shifting from lower to higher gears. While not universally problematic, these shifting concerns can affect driving comfort and performance.
Causes and Solutions: This issue is often linked to software issues within the transmission control module (TCM). Lexus dealers can reprogram the TCM to resolve this problem, and some owners have found this to improve shifting smoothness. In severe cases, the transmission may require part replacement or repair, which can be costly if not covered by warranty.
2. Suspension Noises and Premature Wear
The RX is designed for a smooth and quiet ride, but over time, suspension components such as bushings, shock absorbers, and struts may wear out and lead to noises or a rougher ride. Complaints about clunking or squeaking sounds when going over bumps or rough terrain are relatively common, particularly in older or high-mileage models.
Causes and Solutions: Worn-out bushings, which are part of the vehicle’s control arm and suspension system, are often the culprit. Replacing worn suspension components can restore ride quality and prevent further wear on other parts. Suspension repairs can range from moderate to high in cost, depending on which parts need replacing, so it’s essential to check for unusual noises during a test drive.
3. Steering Column Clunking Sounds
Some RX models exhibit a “clunking” noise that can be felt through the steering wheel, particularly when turning at low speeds or over rough roads. This problem has been linked to wear in the intermediate steering shaft, which can develop play over time. Although this issue does not affect safety, it can be an annoyance and detracts from the vehicle’s otherwise premium feel.
Causes and Solutions: Replacing the intermediate steering shaft typically resolves the clunking noise, and this repair is fairly straightforward but may be moderately priced due to labor costs. Prospective buyers should listen carefully for any clunking sounds during test drives, as it may indicate a need for replacement.
4. Dashboard Cracking and Interior Material Wear
While Lexus is known for its luxurious interiors, some RX models from this generation suffer from issues with dashboard cracking, particularly in areas exposed to sunlight. Certain interior materials may also experience premature wear, with surfaces becoming sticky or peeling, especially in hotter climates. This is largely an aesthetic issue but can be disappointing for owners who expect premium interior quality.
Causes and Solutions: Exposure to sunlight and high temperatures accelerates dashboard deterioration. Lexus has addressed this issue in some cases by offering repairs under warranty. For used models, aftermarket dashboard covers or sun shades can help prevent further cracking, while more extensive repairs may involve dashboard replacement or refinishing.
5. Oil Leaks and Engine Oil Consumption
Owners of the RX 350 model have reported occasional oil leaks and higher-than-expected oil consumption. While not exceedingly common, oil leaks can develop around the valve cover gaskets, causing oil seepage that, if left unaddressed, can lead to engine problems. In addition, some vehicles may consume oil at a faster rate than usual, requiring frequent top-ups between oil changes.
Causes and Solutions: Valve cover gasket leaks are a known issue and typically result from the gaskets deteriorating over time. Replacing the valve cover gasket is a standard repair but can be moderately priced due to labor costs. For owners experiencing excessive oil consumption, Lexus recommends regular monitoring and topping off oil levels. In extreme cases, internal engine repairs may be necessary to address excessive oil use, though this is rare.
6. Fuel Pump Recall
The 2012-2016 RX, like many Toyota and Lexus models, was subject to a recall due to potential issues with the fuel pump. Affected fuel pumps could cause stalling or failure to start due to low-pressure fuel delivery, which is a safety risk, particularly at high speeds. Lexus issued a recall to replace these defective fuel pumps, but some RX models may still have unresolved recall repairs.
Signs and Prevention: Symptoms of a failing fuel pump include difficulty starting, reduced power, and occasional stalling. Checking a vehicle’s recall history using the VIN is essential to confirm whether the fuel pump replacement has been performed. Lexus dealerships can replace fuel pumps free of charge if the recall is still open.
7. Hybrid Battery Degradation (RX 450h)
For the hybrid RX 450h model, hybrid battery degradation can become a concern, especially in vehicles with higher mileage. Over time, the battery may lose its ability to hold a full charge, resulting in reduced fuel economy and power output. This is a gradual process, but hybrid battery replacement can be an expensive repair when necessary.
Signs and Prevention: Symptoms of a degraded hybrid battery include reduced fuel efficiency and a decrease in electric-only range. Regular hybrid system checks can help detect early signs of battery health decline. Replacing a hybrid battery can be costly, so prospective buyers should inquire about the battery's condition and service history, especially for high-mileage RX 450h models.
Buying Tips: What to Look for in a 2012-2016 Lexus RX
Transmission Behavior: Take the car for a test drive and pay close attention to how it shifts gears. Any rough or delayed shifting might indicate transmission issues, which may require TCM reprogramming or more extensive repairs.
Suspension and Steering: Listen for any clunking or creaking sounds from the suspension, and check for smooth, noise-free steering. These sounds could indicate worn bushings or intermediate steering shaft issues.
Interior Condition: Inspect the dashboard for cracks or stickiness, especially in models driven in warm climates. Cracked dashboards can be an aesthetic issue and may indicate previous exposure to extreme sunlight or poor maintenance.
Hybrid Battery Health (for RX 450h): If considering the RX 450h, ask for the battery health check report or consult a hybrid specialist to assess the battery’s condition.
Recall History: Verify that all recalls, particularly for the fuel pump, have been resolved. Lexus dealerships can provide recall history based on the VIN.
Cost of Ownership: Is the 2012-2016 Lexus RX Expensive to Own?
Fuel Efficiency
The RX 350 averages around 20-24 MPG, while the RX 450h hybrid variant offers improved fuel economy at approximately 28-30 MPG. For hybrid drivers, fuel savings can be substantial, especially for those who primarily drive in city environments.
Maintenance and Repair Costs
Routine maintenance costs for the RX, such as oil changes, brake checks, and tire rotations, are generally affordable. However, Lexus repair costs for issues like transmission fixes, hybrid battery replacement, and suspension repairs can be moderate to high. Independent shops experienced with Lexus vehicles can provide quality service at a reduced cost compared to dealerships.
Insurance and Depreciation
The Lexus RX has higher-than-average insurance costs due to its luxury classification, but it also retains value well, with slower-than-average depreciation compared to many other luxury SUVs in its class. RX 450h models, in particular, hold value well due to their hybrid technology.
Potential Extra Costs
Owners of the RX 450h may need to budget for eventual hybrid battery replacement if they plan to keep the vehicle long-term. Additionally, if interior repairs are needed to address cracking dashboards, this may add to ownership expenses.
Conclusion
The 2012-2016 Lexus RX offers a blend of luxury, comfort, and reliability, making it a strong choice for those seeking a premium mid-size SUV. However, it’s not without its set of common issues, from transmission quirks and suspension wear to interior aging and hybrid battery degradation in the RX 450h. By staying informed about these common problems and following maintenance best practices, prospective buyers and current owners can ensure a positive and long-lasting ownership experience with this iconic Lexus model.