How do you turn on blind spot detection on a Toyota?

In most Toyotas, Blind Spot Detection can be turned on via the vehicle settings or a dedicated switch; in newer models, it is typically enabled by default.

Blind Spot Monitoring (BSM) is part of Toyota Safety Sense and helps alert you to vehicles in adjacent lanes. If it isn’t active, you can enable it through the infotainment system or a physical button. Exact paths depend on your model year and trim, so the steps below cover common routes and note model-year variations.

Enable BSD via the infotainment system

This path uses the vehicle’s touchscreen menus to turn on Blind Spot Monitoring. Names of menus may vary by year, but the route roughly follows: Settings, Vehicle or Safety, Blind Spot Monitor (BSM) and toggle On.

1. Start the engine and turn the ignition to ON. Leave the car in Park to access the settings safely.


2. Tap the Settings icon on the touchscreen, then select Vehicle or Safety (the exact label varies by year).


3. Open Blind Spot Monitor (BSM) or Blind Spot Detection in the menu.


4. Toggle Blind Spot Monitor to On. You may also enable related features like Rear Cross Traffic Alert (RCTA) in the same area.


5. Confirm that the BSM indicator on the side mirrors or the dashboard lights up when the system is active, and test by having a vehicle in the blind spot while parked or at a safe speed.

Note: If you don’t see the BSM option in the on-screen menus, your model may use a dedicated physical switch or the path may be labeled differently (for example, under Driver Assist or Safety). Consult the owner’s manual for the exact menu names for your year and trim.

Use the dedicated BSM button

Many Toyota models include a physical Blind Spot Monitor switch on the dash near the steering wheel or on the mirror housing. This provides a quick on/off toggle, often labeled BSM or with a radar icon.

1. Locate the BSM button near the left side of the steering wheel, on the dash, or on the mirror base housing (the layout varies by model).


2. Press or toggle the button to turn BSD On. An indicator light on the instrument cluster or a message in the display will confirm it’s active.


3. Drive briefly and check the side mirrors as you approach a vehicle in adjacent lanes to verify the system is detecting objects (you may hear a chime if something is in the blind spot when you signal).


4. If the system won’t stay on, some cars require you to first enable Safety Sense features via the settings or to ensure the vehicle is in Drive with the parking brake fully released; consult the owner’s manual for your exact model.

If your model uses a combination of the above, you may need to enable BSD in the infotainment system and then use the physical button to toggle it on/off while driving to suit your preference.

Model-year variations

In many 2018–2024 Toyotas, Blind Spot Monitoring is part of Toyota Safety Sense and can be enabled in Settings or with a BSM button; some trims enable the feature automatically in all driving modes, while lower trims may require explicit activation. The exact naming and menu paths vary by model, including RAV4, Camry, Corolla, and Highlander. If you’re unsure, consult the vehicle’s owner’s manual or contact a Toyota dealer for model-specific steps.

Summary

Blind Spot Detection in Toyota vehicles is designed to be easy to enable and configure. The most common method is through the infotainment Settings menu under Safety/Vehicle, but many models also offer a dedicated BSM button on the dash or near the steering wheel. If you don’t see the option, check your manual or contact a dealer to ensure the feature is installed and enabled for your trim and year.

Why is my blind spot detection off?

Your blind spot detection may have turned off due to blocked or dirty sensors, inclement weather, or temporary system limitations like a vehicle in a tight spot. Other common reasons include physical damage to the sensors or mirrors, software glitches, or issues with trailer connections.
 
This video demonstrates how to check for and clear obstructions on blind spot sensors and how to reset the system: 1mDashboard warning lights YouTube · Oct 14, 2025
Temporary and weather-related causes

• Inclement weather: Heavy rain, snow, or fog can interfere with sensor performance. 
• Dirty sensors: Mud, dirt, snow, or ice covering the sensors will cause them to stop working. 
• Close proximity: The system may turn off if a vehicle is too close behind or passes you too quickly. 
• Complex driving situations: The system may be temporarily unavailable when making sharp turns or driving on bumpy roads. 

Obstructions and damage

• Covered sensors: Stickers, bike racks, or other accessories on the rear bumper can block the sensors. 
• Physical damage: Impacts to the rear bumper or damage to the side mirrors can affect the sensors. 
• Water intrusion: Water can get into the side mirrors or sensors, causing temporary or permanent failure. 

Electrical and software issues

• Software glitches: Like any computer system, the blind spot detection software can sometimes have a temporary bug. 
• Wiring problems: A broken wire or corroded connector can cause the system to shut down. 
• Low voltage: A weak or dying 12V battery can cause various safety systems, including blind spot detection, to turn off. 
• Trailer connections: Connecting a trailer, especially with a third-party light, can sometimes disable the system. 

What to do

• Clean the sensors: First, wash the rear bumper and sensors to ensure they are clean. Use a soft cloth, and for stubborn dirt, isopropyl alcohol on a rag can be used to clean the area around the monitor. 
• Check for damage: Visually inspect the rear bumper and the area around the sensors for any obvious damage, debris, or obstructions. 
• Restart your vehicle: Turn the car off and on again to reset the system, especially if it's a software glitch. 
• Check trailer connections: If you've recently connected a trailer, try unplugging it to see if the system returns to normal. 
• Consult a professional: If the problem persists, it's best to have a dealership or mechanic check for any underlying issues, such as wiring problems or damaged sensors. 

How do I turn on active blind spot assist?

From a road speed of 8 mph. The system can detect vehicles in an area up to 130 ft behind your vehicle. And 10 ft alongside. It in the multimedia.

How do I turn on my Toyota Blind Spot Monitor?

Now when I turn it back. On. It's going to illuminate in your mirror. So it shows you that. So I'll turn it off turn it on again you see how it pops up. So that's your blind spot monitor.

How to reset Blind Spot Monitor Toyota?

Perform a soft reset: This is a fancy way to say turn your car off and let it sit for a few minutes. Then, restart the car and see if the BSM warning light turns off. This can sometimes reset the system. Perform a hard reset: Disconnect the car's battery for a few minutes, then reconnect it.