Taillights blinking randomly while truck is locked and off

[mindstormsguy]

"It's acknowledging" or "it's a bug when the truck comes out of sleep and provides power to the taillight control module"?

As an electrical engineer, I strongly suspect the latter. Some EE made a power sequencing error or similar. It's a common rookie mistake. Most likely, an LED driver gets partially powered up shortly before the actual microcontroller that's responsible for controlling the LED driver is powered on enough to initialize its GPIOs (output signals between chips on a circuit board). There's probably some software that takes a non-zero amount of time to properly initialize, and the hardware design doesn't properly hold the LEDs off in the meantime.

It's a bug. And they probably didn't notice before they released the design, because they never tested sleep mode. Back in 2022, they didn't even shut off the power steering when the truck was turned off. I bet they weren't powering off the tail light control module during initial hardware validation either. So they probably didn't find this problem till it was too late. And they presumably have more important areas to spend their engineering efforts right now (like R2).

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[wrightwood]

Yeah it feels like a bug to me when the lights are flashing on the street and I’m inside the house 100 feet away. I’ve disabled proximity locking for now, because of this and the other annoyances, and it makes me wonder if this isn’t contributing to phantom drain. I like the feature, but it doesn’t feel polished.

 

[ER1T]

Even when it's turned off at home?

Yep

 

[Chengo888]

I’ve noticed the same after picking up my R1S on 12/31. I have proximity at home off. Any other suggestions?

 

[godfodder0901]

I’ve noticed the same after picking up my R1S on 12/31. I have proximity at home off. Any other suggestions?

Leave it alone? Ignore it? This is by design.

 

[tobidogger]

I have a related question, I think...my new R1S does something odd: the driver's side brake light stays on for a long time after I lock and leave the vehicle. I tried to see why, poured over the manual, etc... something tells me this is a bug, but, wanted to ask.

 

[godfodder0901]

I have a related question, I think...my new R1S does something odd: the driver's side brake light stays on for a long time after I lock and leave the vehicle. I tried to see why, poured over the manual, etc... something tells me this is a bug, but, wanted to ask.

Not normal. Put in a ticket.

 

[Zoidz]

I have a related question, I think...my new R1S does something odd: the driver's side brake light stays on for a long time after I lock and leave the vehicle. I tried to see why, poured over the manual, etc... something tells me this is a bug, but, wanted to ask.

"Hello Dave. I'm afraid I can't let you put in a service ticket."

 

[CobraJerky]

I have this now also. Booo. Tech support wants me to put the truck through a deep sleep while not charging. Need the charge for work tomorrow! I’ll try this tomorrow night… Anyone find a resolution?

 

[usulio]

I have this now also. Booo. Tech support wants me to put the truck through a deep sleep while not charging. Need the charge for work tomorrow! I’ll try this tomorrow night… Anyone find a resolution?

What exactly is the "this" that you have?

 

[CobraJerky]

What exactly is the "this" that you have?

See title of thread and posts.

Tail lights flashing and door handle lights coming on in my garage. I noticed my home garage camera recording many videos at night. Truck is set to locking off and gear guard off at home. This is a new issue for my R1T. Have tried a hard reset with no change.

 

[CobraJerky]

See title of thread and posts.

Tail lights flashing and door handle lights coming on in my garage. I noticed my home garage camera recording many videos at night. Truck is set to locking off and gear guard off at home. This is a new issue for my R1T. Have tried a hard reset with no change.

Short clip of flashing. Bluetooth is off on phone, airplane mode, app closed.

*Edit - gear guard is off

 

[gnewton]

Mine started doing this as well. I’ve had it over year and out of the blue this started. Did they ever provide a solution? I haven’t reached out yet. I turned off PAAK and moved the fob from inside the house to another location.

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