Lexus IS 250 / 350 Navigation/DVD Bypass

Duration: 30 minutes

1.) Remove the sliver pieces to the right and left of the wood trim on either side to the shifter....they are simply held in with clips, they come out up/back diagonally



2.) Remove the shift knob by turning it counterclockwise.



3.) Remove the shifter plate assembly by opening the ashtray door and pull up with your fingers (I slid the armrest back) it is also held in with simple clips.



4.) Remove ashtray assembly (two Phillips screws)

5.) If you look in the top of the air vents you will see four 1/4" holes in the two vents. If you gently insert a flat head screwdriver at about a 45 degree angle up into the holes and gently pry down you will see that a plastic clip will come down with the driver and clip into a down position....do this to all four...then with a "plastic" pry tool, pry the vents out ...the dash is very forgiving....it will not dent...(at least mine did not) and pull the vents out again they are held in with standard clips....This was the hard part


6.) Remove the Nav unit. There are 4 10mm bolts holding in the complete NAV assembly....remove them and you are set



NOTE THE FOLLOWING INSTRUCTIONS ARE PRE-2007


7.) Cut the PINK wire located on connector J50 and the WHITE (with silver paint) wire on connector P1.



After cutting the Pink and White wires, you put a cap on the wires coming from the Navigation unit. You then connect the Pink (wire loom side) and White (wire loom side) wires together.




*** Note if you have ML and want it to play DVD when moving. You will need to GROUND the parking break wire also. It's the RED wire on the J50 connector.


NOTE: Procedure for 2007’s ONLY

Quick background:

The nav display and nav unit (brain) are two separate parts... Each one has a VSS (Vehicle Speed Signal) wire running to it telling them when the vehicle is moving... The standard nav hack cuts the VSS to the nav display, but leaves it running to the nav unit (brain)... This is why you still can't enter destinations while moving, because the nav unit (brain) knows the car is moving... If you cut VSS to the nav unit (brain) then the nav will not work properly because it is using ONLY GPS signals to calculate the vehicle position... So, my solution was to install a switch in between the VSS source and the nav unit (brain) so that when I want to enter destinations I just flip the switch, enter destinations, and when I'm done, flip it back...

So, in summary here's what the switch does:

1) Switch off - Vehicle is in normal operation, nav hack fully enabled, and VSS is reaching the nav unit (brain) - Smooth navigation, destination entry while moving NOT allowed

2) Switch on - VSS is cut, not reaching the nav unit (brain) - Navigation is jumpy/not accurate, destination entry while moving IS allowed

When you switch from on to off, the nav almost instantly becomes smooth again! Very nice...

On to the DIY:

First, cut/unconnect the pink wire that you connected to the silver/white wire (J50 pink wire, J1 silver/white wire) when you originally did the nav hack...

Get two long pieces of wire... Connect one of these pieces of wire to the Pink wire coming out of the loom that originally went to J50...



Next, take your other long piece of wire and connect it to the silver/white wire that originally came out of J1...

Here is my added black wire crimped to the white/silver wire:



So, I think you guys can see where this is going... If we were to connect the two extra wires we just added, the nav hack would be the same as it was before we started... So, run these wires back behind the dash and out from the driver's footwell... Then, connect both of these newly added wires to the switch as such:




*** Note if you have ML and want it to play DVD when moving. You will need to GROUND the parking break wire also. It's the RED wire on the J50 connector.

ADDITIONAL INFORMATION

To access the diagnostic menus, there are 2 ways.

First way: with the key on, press and hold the info button, and turn the lights on and off 3 times.

Second way: press the display button, then press the top left corner of the window under the display icons, then the bottom left corner. do this 3 times.

Eject Navigation DVD

The DVD for the Navigation system is located in the glove box, but you will not see the "Eject" button anywhere.

You will have to press the "Menu" button on the right side of the Nav screen. You will see the "Map DVD" at the top corner.



After you touch on the " Map DVD". The next screen is the " Eject " buttom icon. Press that.



Here is your Navigation DVD.




Bluetooth Sound Adjustment

1. Press the start bottom twice( foot off the brake pedal) and headlight adjuster to " off "

2. While pressing on the " Info " button with your right index. Use your right hand turn the headlight from " Off" to " Headlight"( not AUTO), Off-Head, Off-Head, three times. This will lead you to the " Diagnostic Menu". You can touch on the top right screen " Menu"

3. For those that have Bluetooth phone you can touch the BT on the button of the screen.



This will lead you to the BT voice quality set. You have to play with it and see which setting is suit you best both for " Incoming call " and " Outgoing call". But hey, you can do it yourself and adjust it anytime you wanted. Enjoy.





Seat Belt "Buzzer" (turn off)

This will turn off your seat belt warning "beeping" for the driver and passenger side. This will only need to be done once in the lifetime of the car as it will retain in the vehicle memory.

*** According to Valet Park, you must have windows up... ***

1) Get into the car w/ ignition off and close the doors
2) Open the "flip console" to your left (mirror / gas lid console)
3) Start engine and set the LCD on the combination meter to the "ODO" display using the ODO/TRIP button. Turn off engine.
4) Now, W/O applying the brakes (don't actually start engine but turn on the electronics.), press the "Engine Start/Stop" button twice. You should see the check engine light and battery light on in the dash. (DO NOT START THE ENGINE)
5) Hold the ODO/TRIP button. Wait ten seconds, and while still holding the button, buckle the driver’s seat belt.
6) The LCD displays "Seat Belt Buzzer On/Off". Release the button. Pressing the ODO button toggles the On/Off



Open Windows and Moonroof from outside vehicle: (2 Ways)
1) Hold down "unlock" button on the remote control for 5 seconds
2) Insert actual Metal key into driver door key hole and turn right & hold (also unlocks door)

Close Windows and Moonroof from outside vehicle: (I only know 1 way)
1) Insert actual Metal key into driver door key hole and turn left & hold (also locks door)

Are you getting the OIL MAINT RESET message‌ If so, here's how to get rid of it:

1. Push the “ODO TRIP” switch in the switch box to change the display to blank.
2. Turn the engine switch off.
3. Turn the engine switch on with the trip meter “RESET” switch held down.
4. Keep pushing the “RESET” switch for longer than 7 seconds after the engine switch is turned on.