How do I unlock the security, navigation and radio screen

Alan Hulley

Asked by Jun 23, 2015 at 10:06 AM about the 1999 Lexus LS 400 Base

Question type: General

I recently bought the car.
It appears that the incorrect code was installed a number of times at the car dealers.
As a result the security lock is on on the navigation screen. I therefore cannot get the radio/ CD/ Tape to work. The Navigator also does not work.
What must I do to reset this.

1 Answer


Hi! Yes lockout mode also happens anytime the battery is disconnected for a period of time. It's a relatively painless fix: you just need to call your local Lexus dealership and provide them with your vin number. Once they pull the vehicle up in their system, they should be able to provide you with the vehicles security code for the radio/nav unit. Enter it on the screen and normal functionality should ensue. Would also recommend writing the code down inside of your owners manual booklet in case you need it again in the future. Hope this Helps!

Your Answer

Add photo

Related Questions

Search Lexus LS 400 Questions

Lexus LS 400 Experts

#1 Tom Demyan
Tom Demyan
Reputation 370
#2 FordNut
Reputation 340
#3 dandyoun
Reputation 210
View All

Related Models For Sale

Used Lexus GS 300"
27 Great Deals out of 1,000 listings starting at $3,200
Used Lexus ES 300"
15 Great Deals out of 1,177 listings starting at $1,500
Used Lexus SC 400"
88 listings
Used Honda Accord"
1,266 Great Deals out of 77,938 listings starting at $1,395
Used Toyota Camry"
1,584 Great Deals out of 98,335 listings starting at $895
Used BMW 7 Series"
198 Great Deals out of 5,864 listings starting at $2,995
Used Mercedes-Benz S-Class"
181 Great Deals out of 6,628 listings starting at $2,900

Used Cars For Sale

1999 Lexus LS 400 Base For Sale
3 Great Deals out of 34 listings starting at $2,995