Blind spot indicators on mirror not functioning

I received a display that blind-spot indicators weren't working..... is the problem a sensor failure ?

 

Hi Mike,

I don’t know the answer to your question, as I don’t own a Tacoma with BSM.
I’m sure a member here with NSM can help you.

I just wanted to say, Welcome to TW!

 

Welcome to the forum. Could be as simple as mud build up on the sensors.

 

Do those covers just pop off?

 

It's impossible to know without some troubleshooting. It could be a failed sensor(s), a failed module, a bad harness or connection. The sensors and module are not cheap. Labor is a significant cost, as well, since it requires a not so simple calibration procedure to be done correctly. There was many '16 & '17 Tacomas with rear harness issues due to moisture intrusion that was addressed in a service campaign or similar. I don't think it was a recall, though. The wiring between the rear bsm sensors is part of the rear harness.

The rear bumper cover does, but it's not a 2 minute thing and it's off, there are clips and crap to deal with and the black plastic guard on top comes off first, then the bumper cover comes off.

 

There is a TSB on that issue had the 2 sensors on my back bumper replaced for free but mine is a 2019.

 

A TSB you say? My whole BSM system just recently stopped working

 

Yea mine did the same thing run your vin through Toyotas sight it should pull up all that is listed for your vehicle then get with your dealer didn’t cost me a penny just 3 hrs down time.

 

Yup, best to use a forked tool but a flat blade screwdriver works to pop the plastic retainers out.