Dreaded sunroof drain subject

[r2m]

Only have one fob.

Just a suggestion, get another FOB from wherever, Lexus, Amazon, etc. that is not programed, then get the programing software (TechStream?). This way, you'll have killed two birds with one stone.
You'll have a second FOB and you'll have the software to do all kinds of cool stuff to your rig!
Albeit, at a small cost... But for myself, it was worth it when I had to get another FOB.

 

[Acrad]

Only unknown here I am not sure on key programming is how well it works with one that is failing on the radio side and requires putting against the start button during program sequence. Hopefully it doesn't require a full reseed setup with new keys

(Post 13)

[Mod] #Smart #Card #Key (Credit Card style key) for GX460 / FOB Programming - ClubLexus - Lexus Forum Discussion

GX - 2nd Gen (2010-2023) - [Mod] #Smart #Card #Key (Credit Card style key) for GX460 / FOB Programming - We just discovered a workable SMART Card for the new GX460. Thanks to our Service Director John Godyn, we were successfully able to program it to his newly purchased 2010 GX460. For those of...

www.clublexus.com

 

[r2m]

Only unknown here I am not sure on key programming is how well it works with one that is failing on the radio side and requires putting against the start button during program sequence. Hopefully it doesn't require a full reseed setup with new keys

(Post 13)

[Mod] #Smart #Card #Key (Credit Card style key) for GX460 / FOB Programming - ClubLexus - Lexus Forum Discussion

GX - 2nd Gen (2010-2023) - [Mod] #Smart #Card #Key (Credit Card style key) for GX460 / FOB Programming - We just discovered a workable SMART Card for the new GX460. Thanks to our Service Director John Godyn, we were successfully able to program it to his newly purchased 2010 GX460. For those of...

www.clublexus.com

Agreed, my response would only apply if it is just a FOB issue and not the receiver/electronics on the vehicle.

 

[giovanni]

So we're going to try my TS setup to see if we can diagnose / fix this.

I have a spare FOB that I programmed for my truck - is it possible to program that FOB for MrTorgue? Or do we have to do the whole "seed" process?

Programming the FOB was easy, but the seed stuff looks complicated.

 

[Acrad]

Yeah... those FOBs can't simply be re-associated with another vehicle they have reset/re-seeded. I've never had to do that.

 

[r2m]

I've only done a new FOB so far, never reprogrammed one.
I have reprogrammed them with my old 100 series, but that didn't involve software, just a strange combination of door opening/closing with ignition on/off and door locking/unlocking. It's kind of a crazy "dance" but it does work and a easier/cheaper than having to use TS.

 

[GrizzlyClint]

Yeah... those FOBs can't simply be re-associated with another vehicle they have reset/re-seeded. I've never had to do that.

We both decided I’ll get a new fob (I’m buying two) and program those all at the same time and also check TS for any codes IF I continue to experience my issue.

Fun fact, my fob works again and all is back to normal this morning. I just wonder if the fob itself is the problem.

Another note, we had a huge rainstorm overnight and I had no water inside the cabin. Still going to clean my drains but I thought I’d mention it.

 

[Acrad]

Hopefully it is just the FOB.... and having a backup is always good. My 460 only came with one FOB so purchased another before the Smart Card MOD came out so have 3 of them now. You can have a total of 7 IIRC

 

[GrizzlyClint]

Hopefully it is just the FOB.... and having a backup is always good. My 460 only came with one FOB so purchased another before the Smart Card MOD came out so have 3 of them now. You can have a total of 7 IIRC

7? Excellent.

 

[r2m]

We both decided I’ll get a new fob (I’m buying two) and program those all at the same time and also check TS for any codes IF I continue to experience my issue.

Fun fact, my fob works again and all is back to normal this morning. I just wonder if the fob itself is the problem.

Another note, we had a huge rainstorm overnight and I had no water inside the cabin. Still going to clean my drains but I thought I’d mention it.

That's really great news to hear that it's back to normal!
I hate that sinking feeling when things are amiss with my rig, especially electrical issues.

 

[Acrad]

Just some side notes here.

If you ever need to replace the sunroof seal or adjust sunroof positioning via the T25 screws

Sunroof seal

PN: 6325112190

 

[Banandalorian]

FWIW for preventative maintenance if you don't have your own air compressor, Carmax charges like $70 (or they did in December 2020) to clean the sunroof drains on our CX5. I assume the GX would be similar since it has a normal sunroof.

We live in a neighborhood with a lot of trees so this is like a once a year maintenance task. I'll find out how much that price has gone up in a few weeks after all the leaves have come down.

 

[gietl]

I experienced this in the car wash just about an hour ago, it wasn't a lot of water but it appears to infiltrate above my head. Timing was perfect I slid open the cover to watch it go over and BOOM, right in the head. I just checked and my passenger side a-pillar and floor are wet so I am guessing the front passenger drain at least is clogged or very slow. I opened the sun/moonroof all the way and nothing was sitting in the top nor does it look like water has sat for any period.

As a Highlander owner as well (and for future readers), one thing on the rear drains. If you are clearing without disassembling do not use compressed air on the rear drains. It could cause the tube to come lose at the upper drain and then you'll have a real mess in the future. I think 9/10 times it's just the fronts clogged anyway, but beware with the rears.

 

[GrizzlyClint]

I experienced this in the car wash just about an hour ago, it wasn't a lot of water but it appears to infiltrate above my head. Timing was perfect I slid open the cover to watch it go over and BOOM, right in the head. I just checked and my passenger side a-pillar and floor are wet so I am guessing the front passenger drain at least is clogged or very slow. I opened the sun/moonroof all the way and nothing was sitting in the top nor does it look like water has sat for any period.

As a Highlander owner as well (and for future readers), one thing on the rear drains. If you are clearing without disassembling do not use compressed air on the rear drains. It could cause the tube to come lose at the upper drain and then you'll have a real mess in the future. I think 9/10 times it's just the fronts clogged anyway, but beware with the rears.

Check the passenger kick panel under the glovebox in front of the door. There's a ton of modules and wiring spaghetti down there.

 

[Acrad]

I don’t recall in my 6 years of ownership anyone reporting clogged rear drains on the 460

Front drains, windshield seal, or severely compromised sunroof seal allowing more water in than drains can handle

 

[Cold Iron]

Bringing this back up as a PSA, just bit me in the butt last week. Went to start the GX to get Wool Wax treatment and had the Christmas Tree dash. Wouldn't go into gear either. Errors and codes were

Check Headlight System
Check Air Suspension System
Check BSM System

U1100 lost communication with pre-collision module
U0182 lost communication with lighting control module front
U0129 lost communication with brake system control module
U0126 lost communication with steering angle sensor module
U0122 lost communication with vehicle dynamics control module
U0124 lost communication with lateral acceleration sensor module

Which didn't make sense to me at the time. Then remembered after I got back from 3 weeks of running through the woods and brush plus sitting under trees at the cabin I ran it through the car wash when I got home to knock off the larger chunks of mud. Buffed the natures pinstriping out, clayed it then polished and waxed it. And gave it a few more baths while doing each step. Looked really nice. Sitting in the driveway without the ability to go anywhere....

It eventually dried out and I cleared the codes and now all is fine. Hopefully corrosion will not continue to occur on the ECU connections and all is well.

Apparently once a year, for me, is not enough snaking the string trimmer line though the drains.

 

[Rednexus]

FWIW, I found that compressed air worked better than trimmer line with my drains. I used a rubber-tipped blow gun. Suprisingly mine took a full 5 years of parking outside - including under a maple tree at our last house - to clog up.

Regarding the sunroof seal, unfortunately they are not available as a standalone part for a 470. Toyota will, however sell you the full glass and seal for $500+. A simpler fix for my rig included removing the glass and wrapping the seal with several layers of 3M Super 33 electrical tape . It's now drastically quieter in terms of wind noise and presumably leaks less as well. I'll be happy if that fix lasts a year considering it just cost a few dollars.

 

[r2m]

FWIW, I found that compressed air worked better than trimmer line with my drains. I used a rubber-tipped blow gun. Suprisingly mine took a full 5 years of parking outside - including under a maple tree at our last house - to clog up.

Regarding the sunroof seal, unfortunately they are not available as a standalone part for a 470. Toyota will, however sell you the full glass and seal for $500+. A simpler fix for my rig included removing the glass and wrapping the seal with several layers of 3M Super 33 electrical tape . It's now drastically quieter in terms of wind noise and presumably leaks less as well. I'll be happy if that fix lasts a year considering it just cost a few dollars.

Using your compressor/airgun, where do you blow into on your sunroof? Is it just the front, left and right corners?
Also try looking on McMaster-Carr for weather stripping and see if they have something thin enough to work: McMaster-Carr - https://www.mcmaster.com/products/weatherstripping/edge-trim-1~/

 

[Rednexus]

Using your compressor/airgun, where do you blow into on your sunroof? Is it just the front, left and right corners?
Also try looking on McMaster-Carr for weather stripping and see if they have something thin enough to work: McMaster-Carr - https://www.mcmaster.com/products/weatherstripping/edge-trim-1~/

I blow it into the corner of the sunroof. Low, on both the right and left corners. The same drain hole one would clean out with trimmer string.

Regarding the weatherstripping, I have thought about trying to find a replacement, but am concerned that I may not have a usable sunroof if I remove the old and find the new one does not fit . The tape is working pretty well for now.