Lexus IS300 Vehicle Speed Sensor Guide (2007-2015)
Having issues with your speedometer or transmission shifting? It could be a failing vehicle speed sensor.
- A bad vehicle speed sensor on your IS300 will most noticeably cause an erratic speedometer and harsh, incorrect automatic transmission shifting.
- Your Lexus has multiple speed sensors; transmission-mounted VSS and wheel-mounted ABS sensors. A diagnostic scan is crucial to identify the correct failed sensor.
- Replacing the VSS is a manageable DIY task for many owners, often requiring access from the top of the transmission after removing the air box.
- Aftermarket brands like Vemo offer a cost-effective alternative to expensive OEM parts, but always verify the specific part number for your vehicle.
Understanding Speed Sensor Failure in Your IS300
A failing vehicle speed sensor (VSS) on a 2007-2015 Lexus IS300 can cause some very noticeable and frustrating problems. Since the sensor's data is used by multiple systems, a bad signal can lead to a chain reaction of issues, from an incorrect speedometer to poor engine performance. It's important to diagnose the problem correctly, as these symptoms can sometimes be confused with more serious transmission problems. A diagnostic scan for trouble codes is the first step before replacing any parts.
Warning: Multiple Sensor Types
Your Lexus has several sensors that measure speed. The main Vehicle Speed Sensor (VSS) is typically mounted on the transmission and communicates with the engine and transmission computers. There are also individual Wheel Speed Sensors (often called ABS sensors) at each wheel for the anti-lock braking and traction control systems. Symptoms and diagnostic codes will help you determine which sensor has failed. This guide focuses on the main transmission-mounted VSS.
Choosing an Aftermarket Replacement
When replacing a VSS, you have the choice between an Original Equipment Manufacturer (OEM) part from Lexus and an aftermarket part. OEM parts are identical to the one your car was built with, guaranteeing a perfect fit and function, but they come at a higher price.
Aftermarket brands offer a more affordable alternative. Vemo, for example, is a brand that specializes in sensors and electronics, primarily for European vehicles, but offers parts for Asian makes as well. Aftermarket sensors from reputable brands are designed to meet or exceed original specifications and can be a reliable, cost-effective solution. However, quality can vary between brands, so it's important to choose one with a good reputation.
Cost of Replacing a Lexus IS300 Vehicle Speed Sensor
| Part Type | Estimated Cost |
|---|---|
| New OEM (Lexus) | $200 - $300+ |
| New Aftermarket (Vemo) | $70.35 |
| Shop Labor | $100 - $200 |
Pro Tip: Check the Right Part
The second-generation IS platform can have two nearly identical speed sensors on the transmission (input and output sensors). Before ordering, confirm the exact location and part number of the failed sensor. Sometimes, simply cleaning the sensor and its electrical connector can resolve the issue, although this is often a temporary fix.
Frequently Asked Questions
Where is the vehicle speed sensor located on a 2007-2015 IS300?
The main vehicle speed sensors are typically located on the top or side of the transmission housing. You may need to remove the engine air filter box to access them from above. There are also individual wheel speed sensors located at each wheel hub as part of the ABS.
Can I replace the vehicle speed sensor myself?
Yes, this is a feasible DIY job for someone with basic mechanical skills. It usually involves removing a single bolt and an electrical connector. Accessing the sensor can be the most challenging part, sometimes requiring the removal of the air intake assembly. Ensure the vehicle is safely supported on jack stands before working underneath it.
What happens if I don't replace a bad speed sensor?
While you can drive with a bad VSS, it's not recommended. You will likely experience increasingly erratic transmission shifting, which can be unsafe and potentially cause extra wear on transmission components. You will also have an inaccurate or non-working speedometer and no cruise control.
Are there any recalls for the IS300 speed sensor?
There are no specific recalls issued by the NHTSA for the vehicle speed sensor on the 2007-2015 Lexus IS platform. However, there have been recalls for other issues like airbags and fuel system components on these models.
Technical Specifications
OEM Part Numbers: 89413-32010 89413-0C010 89413-24010 89413-08020
Inductive sensor with a 2-pin oval connector, mounted on the transmission housing.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Lexus IS300: