Can I drive a Lexus with the check engine light on?
The check engine light is one of the most common yet misunderstood indicators on a vehicle's dashboard. If you own a Lexus and notice this light illuminated, you might wonder whether it’s safe to continue driving or if immediate action is required. As an experienced auto service provider, I’ll break down what this light means and how you should respond to it.
What Does the Check Engine Light Mean?
The check engine light is part of your Lexus's onboard diagnostics system (OBD). When it lights up, it means the vehicle's computer has detected an issue with the engine, emissions system, or other critical components. The severity of the problem can range from a loose gas cap to a serious engine malfunction.
Can You Drive with the Check Engine Light On?
In most cases, you can drive your Lexus with the check engine light on, but it depends on the nature of the issue. Here’s how to assess the situation:
- Steady Check Engine Light: If the light is steady and not flashing, the issue is likely not an immediate emergency. However, you should still have your vehicle inspected as soon as possible to prevent further damage.
- Flashing Check Engine Light: A flashing light indicates a serious problem, such as a misfire that could damage the catalytic converter. In this case, you should stop driving immediately and have your Lexus towed to a repair shop.
Steps to Take When the Check Engine Light Comes On
If your Lexus's check engine light turns on, follow these steps to ensure your safety and minimize potential damage:
- Check for Obvious Issues: Start by checking if the gas cap is loose or improperly sealed. A loose gas cap is a common cause of the check engine light and can be easily fixed.
- Monitor Vehicle Performance: Pay attention to how your Lexus is driving. If you notice unusual noises, reduced power, or rough idling, it’s best to stop driving and seek professional help.
- Schedule a Diagnostic Test: Visit a trusted auto repair shop to have the issue diagnosed. A professional mechanic will use an OBD scanner to identify the specific error code and recommend the necessary repairs.
Why You Shouldn’t Ignore the Check Engine Light
Ignoring the check engine light can lead to more severe problems down the road. Here are some reasons why prompt action is essential:
- Prevent Costly Repairs: Addressing minor issues early can save you from expensive repairs later.
- Ensure Safety: Some problems, like engine misfires, can compromise your safety if left unresolved.
- Maintain Emissions Standards: A malfunctioning emissions system can cause your Lexus to fail a smog test and harm the environment.
Conclusion
While it’s possible to drive your Lexus with the check engine light on in certain situations, it’s always best to address the issue promptly. If the light is flashing or you notice performance issues, stop driving immediately and seek professional assistance. At Kevin’s Autos, we specialize in diagnosing and repairing all makes and models, including Lexus vehicles. Don’t hesitate to contact us for reliable and affordable service to keep your car running smoothly.
Frequently Asked Questions
Is a solid check engine light serious?
A solid check engine light generally means that there's an issue, but it's not an immediate emergency. In many cases, it could be something simple like: A loose or missing gas cap.
Can I drive my Lexus with the check engine light on?
If the cause is a minor issue, such as a loose gas cap, it should be secure to drive. This is generally indicated by a steady glow of the check engine light. If you notice a difference in the performance of the car, it could be an indication of a more serious problem.
What causes the check engine light to come on in a Lexus?
Lexus Check Engine Light Flashing
Other common reasons for a Check Engine Light are dirty mass airflow sensor, damaged oxygen sensor, faulty head gasket, faulty emissions control part, a malfunction with the fuel injection system, or defective spark plugs to name a few.
Why is my engine light on but nothing seems wrong?
Check engine lights can turn on for a number of reasons. Some can be minor problems such as tightening the gas cap, and others can be serious problems like engine issues. If your vehicle is running fine, the check engine light may signal a minor issue, but it is best to visit a mechanic to make sure.
How long can you wait after check engine light comes on?
around 50 to 100 miles
The car's internal computer only resets after a set period where it checks all of its sensors once more. The reset can happen automatically after around 10 to 20 cycles. A cycle is a phase where you turn on the car and turn it off again. For other vehicles, you'll have to drive around 50 to 100 miles before it resets.
How far can I drive after the check engine light comes on?
The answer is it is safe to drive from 50-100 miles. To maintain your car's health, it is always better to get it checked immediately when you see the check engine light.
How to clear a Lexus check engine light?
Using an OBD-II Scanner: The most reliable method to reset the light is by using an OBD-II Scanner, just like the professionals do. Simply connect the scanner to the OBD-II port, usually located under the dashboard, and follow the prompts to clear the codes.
What is the most common cause of a check engine light?
The 9 Most Common Causes for the Check Engine Light
- Loose Fuel Cap. This one is actually very common.
- Oxygen Sensor. Your emissions system will have oxygen sensors that are there to detect exhaust issues.
- Other Emissions Problems.
- Spark Plugs or Ignition Coils.
- Wiring Issues.
- Transmission.
- Cooling System.
- Fuel System.
How bad is it to drive with a check engine light on?
If the light comes on and remains on, yet everything seems to be working like normal, you should be able to continue driving. But it is important to schedule an appointment to have the issue diagnosed and fixed. If the light comes on and it is blinking, this is an indication of something more serious.
How long can you drive with the engine warning light on?
You'll normally be able to drive for a while after the engine light comes on (as long as it's not flashing or red), but try to avoid heavy acceleration and high engine speed. It's not advisable to drive more than another couple of miles without getting your car checked by a professional mechanic.
