2021 RT ACC (Radar/Distance) Stopped working

12728 Views 84 Replies 22 Participants Last post by speedtoys.racing, 3 mo ago

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Discussion Starter · Jul 25, 2021

Was riding and got this on the display and thought I would share so if it happens to someone else:

Hood Motor vehicle Light Automotive design Automotive tire

Acknowledged message but alert symbol on right side wouldn't go away. Normal cruise still worked but no ACC available. Stopped for gas and down the road still no ACC and message came back again. When I got home I saw that a bug had figured out if he sacrificed himself on the ACC sensor then he could disable this capability! Cleaned his remains (and some of his buddies) off the front and it works fine now. Hope this helps a fellow 21 RT rider in the future.

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The_real_hati

· #81 · 3 mo ago

rtwiz said:
Just a piece of tape over the lens and another one on the dash light, I'm good!

Ok, what about other problems that trigger the (same)dash warning light? Your tape would still be over it...

rtwiz said:
This sounds to me more like a camera alignment thing.

Does it? There are no cameras on the RT, none. There is one solitaire radar unit. Nothing to align.

rtwiz said:
I knew this was a terrible idea when BMW first announced it

Most RT owners who have this feature (active cruise control) will disagree with you, myself included. It is a FANTASTIC feature, makes riding a lot easier, especially when riding long distances in traffic.

Just out of curiosity, have you actually tried an RT with active cruise at all? How about over an extended ride?

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DavidJax

· #82 · 3 mo ago

I like the active cruise on my RT so much that now I wish I had added it when I ordered my car (2020 BMW Z4). Unfortunately, it was a $1200 option and at the time I didn't think I needed it. My mistake!

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Sandancer

· #83 · 3 mo ago

I agree with those who say ACC is a tremendous option. Having said which it is even more useful on my car as that is automatic and so enables it to function right down to a stop. In slow moving, stop start traffic it becomes almost self driving.

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speedtoys.racing

· #84 · 3 mo ago

I get the "no real GPS"...but when the dev cycle for a vehicle product is as LONG and expensive as it is, and everything you can plug INTO it does a better job...and any substantive change to it would take 4-6yrs to re-rev the product.

Why bother.

In that frame...why they decided to wall up WHAT GPS product to use in the face of a highly settled set of Apple and Android ecosystems to adopt...is the real question.

I don't fault them at all for not developing and supporting a walled-garden baked in GPS/mapping system internal to the bike, at all.

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speedtoys.racing

· #85 · 3 mo ago

The_real_hati said:
Ok, what about other problems that trigger the (same)dash warning light? Your tape would still be over it...

Does it? There are no cameras on the RT, none. There is one solitaire radar unit. Nothing to align.

Most RT owners who have this feature (active cruise control) will disagree with you, myself included. It is a FANTASTIC feature, makes riding a lot easier, especially when riding long distances in traffic.

Just out of curiosity, have you actually tried an RT with active cruise at all? How about over an extended ride?

Im in this camp, I love it.

If you find yourself annoyed about the variable speed, maybe you're not planning where you are on the highway far enough ahead.
When that happens to ME...that is the feedback I process. MOST of the time it's because I stopped being ahead of the bike enough to where it -had- to slow me down.

If traffic is choked enough that its too fast to filter lanes, and you cant really wander around things to keep -a- speed, it's great for that 60-40mph waves in traffic.

Then of course, there are conditions where you would never use CC, adaptive or not.

No different than when I fly with autopilot on, I let it do it's thing, it's my job to monitor if it's made the right decisions or not.

If it didn't slow you down, you would not do so on your own? I don't follow why one wouldn't like it.

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