Subaru Check Engine Light Eyesight, RAB [Reasons + Fix]

Have you ever encountered the “RAB Disabled” error message in your Subaru car? If this is the case, you might wonder what it signifies and how to repair it. Many Subaru owners are baffled by the “RAB Disabled” error message, which could have several causes. This article will explain what the Subaru Check Engine Light Eyesight, RAB and how to resolve it so that you can resume driving.

A safety function called Reverse Automatic Braking (RAB) applies the brakes automatically while your car is in reverse, such as when backing out of a parking place. This safety feature, present on many more recent Subaru vehicles, is intended to prevent collisions in confined areas.

To prevent collisions or lessen their severity, the system employs sensors to identify objects behind the car and immediately applies the brakes if it feels an item approaching too closely.

This technology can be especially useful while backing up in congested or confined spaces or dimly illuminated environments. RAB is now a common feature on many automobiles, and older models can also have it installed as an aftermarket option.

RAB is a great choice to consider whether you’re a rookie driver just getting the hang of things or an experienced driver looking to up the level of safety on your journeys.

Subaru Check Engine Light Eyesight, RAB

The x-mode light is blinking, eyesight and RAB are disabled, and the check engine light is on. 2 weeks old, 800 kilometers. Verify the gas cap. Drive for a while and check to see if it shuts off after taking it off and tightening it back on.

RAB is a crucial component of the entire driver-assist technology landscape. It has been more well-known in recent years thanks to its capacity to lessen collisions and increase general vehicle safety.

In the future, RAB may become even more typical as automakers continue to develop new technologies. RAB is unquestionably something to consider if you’re searching for extra security and peace of mind when driving.

What “RAB Disabled” Means In Subaru And What To Do About It?

The reverse automatic braking system has been deactivated or turned off if you notice the error message “RAB Disabled” in your Subaru. Several things, such as a loose gas cap, filthy sensors, or out-of-date software, might cause this.

Ensure all of the system’s components are in good operating order if you suspect your RAB system isn’t performing properly. It’s time to check for any potential software upgrades if everything is in order.

Upgrades to your vehicle’s software are an excellent method to maintain your driver-assist system functioning at peak efficiency. Many automakers often provide software upgrades that can enhance the performance and accuracy of their driver-assist systems.

The Most Frequent Reasons For The Notice “RAB Disabled” On Your Subaru

Dirty RAB Sensors

When their sensors become filthy or clogged, many Subaru owners complain that the error message “RAB Disabled” displays. When these sensors are covered in dirt or debris, the RAB system, which relies on them to identify objects in your vehicle’s path, is disabled. Thus, this error message is extremely common when the sensors get covered with mud or slush during rainy or unclean weather.

Damaged RAB Sensors

It’s also possible that malfunctioning or damaged sensors have rendered your RAB system inoperable. If this is the case, you should take your car to a mechanic so they can examine it and, if required, replace the sensors. The sensors should be checked and fixed immediately because even small blemishes or scratches might impair their effectiveness.

Cold Weather

When it’s chilly outside, the warning “RAB Disabled” may appear. This is because your sensors are covered in ice or by salt and other road debris that may have accumulated over time. It could be because the system operates improperly since it is too chilly. You can either wait for your car to warm up or try to remove the ice from the sensors to see if that solves the problem.

Leaving Your Gas Cap Off

Interestingly, some Subaru owners have claimed that failing to secure the petrol cap after filling up causes the “RAB Disabled” warning to appear. Restarting the system and putting on or tightening the petrol cap in this situation should fix the issue. Unsurprisingly, leaving the gas cap off would result in this error notice because Subaru is very concerned with safety.

Outdated Software

The “RAB Disabled” warning could show up if your car’s software is outdated. If your Subaru is using an outdated version of its software, it may be time for an upgrade. Many automakers regularly release updates that can enhance the accuracy and functionality of driver-assist systems like RAB.

Steep Road

Some motorists claim that the error notice appears when they park their vehicle on a steep incline or descent. If this is the case, the incline may be preventing the RAB system from detecting items close to your car because it is only intended to detect objects within a specific range.

Since no specific remedy exists for this problem, your best option is to avoid parking on steep dips or inclines. After parking on a steep incline, restart your RAB system to make it active.

Cascade Failure

Subaru owners have complained that, in extremely rare circumstances, the error message “RAB Disabled” shows when another car component, such as the brakes or steering, isn’t working properly.

When one system malfunctions and prompts another system to shut down for safety, this is referred to as a cascade failure. In this instance, other error messages should also be seen, signaling a major issue.

The Bike Rack May Cause Your RAB System To Turn Off

Your RAB system’s potential to shut down when you install a bike rack or other similar attachments to your car is another potential problem you can run across.

This is due to the possibility that the bike rack obstructs the sensors, making it impossible for them to identify items in your car’s path. Ensure the bike rack is firmly fastened to your vehicle and does not block any sensors to avoid this problem.

Whatever the reason, ensuring your Subaru RAB system is in good operating order is crucial. If the error notice continues, don’t hesitate to take your car to a nearby garage or dealership for repairs.

How To Reset RAB If You Are Having Problems With It?

You can reset the RAB system independently, depending on your Subaru model. Hold the RAB button on your touchscreen for five seconds to accomplish this. The system should then be reactivated after the error warning has vanished.

If it doesn’t, you might have to try another approach or take your car to the dealer for repairs. In some circumstances, reconnecting the battery may be necessary to reset the entire system.

To accomplish this, locate the negative terminal on your Subaru’s battery and briefly disconnect it. Reconnect the cable after that, then start the car.

Common Reasons Why The Check Engine Light Comes On In Modern Cars

EVAP System Fault

To safely transport petrol fumes back into the engine, many current cars have an evaporation system incorporating activated charcoal canister. The check engine light should come on if there is a problem with this system, typically associated with the evaporation canister.

Changing the canister will fix the issue most of the time, but you should be certain before investing time and money in it. We strongly advise having the professionals in an authorized service center like ours read your Subaru CEL codes.

Loose Gas Cap

It may seem strange, but a gas cap that doesn’t make a tight seal can give the impression that there is a problem with the EVAP system we stated earlier on this list.

Therefore, you should ensure your gas cap is on and tight if you recently dropped it or even just received gas when the CEL illuminates. You might need to replace it if it’s cracked. If this is the cause of your check engine light, it’s one of the easiest and least expensive problems to address.

Coolant Temperature Sensor

The computer will also require the engine temperature to operate the vehicle properly. The data from this sensor affects how the computer functions as well as help to warn you when the engine is getting too hot.

Therefore, if this sensor generates a code that activates the CEL, you cannot receive a warning that the engine is getting too hot, and the computer might struggle to keep it operating smoothly.

Mass Air Sensor

As you may know, modern cars are sophisticated machines that depend on computers to maintain smooth operation. This computer uses data from a variety of sensors to do its duties.

The engine’s air intake sensor is a popular one that needs repair on higher-mileage vehicles, and it is a code from these sensors that is most frequently to blame for a check engine light turning on.

This sensor—often called the Mass Air Flow (MAF) sensor—tells the computer how much air is circulating through the engine. This sensor’s code can occasionally be set off by anything as simple as an out-of-date engine air filter, while other times, it’s the sensor itself. Whatever the case, you shouldn’t have it on your mind while driving for long.

Ignition System Fault

Modern Subaru BOXER® engines are technical marvels with incredibly sophisticated ignition systems. The amount of work that goes into ensuring that each spark plug fires precisely may surprise you.

Several factors might cause an ignition system to illuminate the CEL, from the ignition coils to the wires and spark plugs. Since the engine could shut off, ignition issues can manifest as a red check engine light.

O2 Sensors

This is the most frequent cause of the CEL turning on that our authorized Subaru dealership service center encounters. O2 sensors are a standard feature in the exhaust system of all current vehicles.

These crucial sensors measure the oxygen content of the exhaust gases, and the computer uses this data to calculate the ideal proportion of air and fuel. Most contemporary cars will feature two or more O2 sensors.

The one that notifies the computer of its requirements will be placed before the catalytic converter. Usually, the second O2 sensor is located behind the catalytic converter. It offers equally crucial details regarding the car’s emission control systems.

Conclusion

Let’s conclude, How does Subaru Check Engine Light Eyesight, RAB? The reverse automatic braking system has been deactivated or turned off if you notice the error message “RAB Disabled” in your Subaru. Numerous things, such as a loose gas cap, filthy sensors, or out-of-date software, could cause this.

Most of the time, this error is caused by a simple issue that can be fixed by cleaning the sensors or updating the device’s firmware. It is essential to have your car repaired by a certified mechanic if you still experience issues after doing this.

Frequently Asked Questions