Wishing you good luck to find a solution to your top issue soon! 
2004 SC430 Intermitten Hardtop
Thread Starter
10th Gear
Joined: Mar 2023
Posts: 11
Likes: 3
From: Arizona
2004 SC430 Intermitten Hardtop
I recently purchased a SC430. When I bought the car I checked out the roof and everything worked fine. I purchased the car a couple of weeks ago and have only driven or operated the top a few times. However, when I stopped at my friends for the weekend after buying the car I must have opened 5 or six times with no problems. Since I have been home I have expeienced on three occasions where the top does not want to open. The first time I read on here about cycling through the trunk button a few times. I did that and it worked.
The 2nd time it wouldn't open, I tried the glove box button but it did not work. I then read on here to disconnect the battery for a minimum of 30 mins. and the top worked again. The third time (today) it worked three or four times while in town and got ready to come home and it would not open. I just got home and disconnected the battery for 30 mins and the top is working again. What is causing this? I want to also ad I only got the vallet key with the car. So I am unsure if disconnecting the battery causes a temporary reset to the lockout system. It just doesn't appear to be a motor related issue. Any help is appreciated. Thanks Jeff
The 2nd time it wouldn't open, I tried the glove box button but it did not work. I then read on here to disconnect the battery for a minimum of 30 mins. and the top worked again. The third time (today) it worked three or four times while in town and got ready to come home and it would not open. I just got home and disconnected the battery for 30 mins and the top is working again. What is causing this? I want to also ad I only got the vallet key with the car. So I am unsure if disconnecting the battery causes a temporary reset to the lockout system. It just doesn't appear to be a motor related issue. Any help is appreciated. Thanks Jeff
Lexus Test Driver
Joined: Dec 2014
Posts: 8,213
Likes: 952
From: Fl
I recently purchased a SC430. When I bought the car I checked out the roof and everything worked fine. I purchased the car a couple of weeks ago and have only driven or operated the top a few times. However, when I stopped at my friends for the weekend after buying the car I must have opened 5 or six times with no problems. Since I have been home I have expeienced on three occasions where the top does not want to open. The first time I read on here about cycling through the trunk button a few times. I did that and it worked.
The 2nd time it wouldn't open, I tried the glove box button but it did not work. I then read on here to disconnect the battery for a minimum of 30 mins. and the top worked again. The third time (today) it worked three or four times while in town and got ready to come home and it would not open. I just got home and disconnected the battery for 30 mins and the top is working again. What is causing this? I want to also ad I only got the vallet key with the car. So I am unsure if disconnecting the battery causes a temporary reset to the lockout system. It just doesn't appear to be a motor related issue. Any help is appreciated. Thanks Jeff
The 2nd time it wouldn't open, I tried the glove box button but it did not work. I then read on here to disconnect the battery for a minimum of 30 mins. and the top worked again. The third time (today) it worked three or four times while in town and got ready to come home and it would not open. I just got home and disconnected the battery for 30 mins and the top is working again. What is causing this? I want to also ad I only got the vallet key with the car. So I am unsure if disconnecting the battery causes a temporary reset to the lockout system. It just doesn't appear to be a motor related issue. Any help is appreciated. Thanks Jeff
when it works, the red LED should be solid red while you are moving it.
the trunk cover must be “seated” in the slot correctly. There is a micro switch in there…so if the LED is blinking red when it won’t move, the micro switch may be the cause
Pole Position
Joined: Oct 2015
Posts: 3,114
Likes: 617
From: CA
Trending Topics
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Top 10 Most Confusing Things Lexus Has Ever Done!
Joe Kucinski
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles
Michael S. Palmer
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!
Michael S. Palmer
10 Best Lexus Models No One Remembers
Joe Kucinski
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing
Michael S. Palmer
Top 10 Lexus & Toyotas to Drive Before You Die!
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
RKD
SC430 - 2nd Gen (2001-2010)
11
May 5, 2017 07:54 PM
caroles430
SC430 - 2nd Gen (2001-2010)
3
Jul 12, 2016 01:00 PM