When we bought our CT200h, we deliberated all the packages on the car and wasn’t sure if we wanted the LED headlights. Both cars come with projector lenses thankfully so we decided to an upgrade to HID using a high quality premium kit from OptiksHID systems.
It’s still debatable which system (OEM LED vs. HID) is brighter so I’m going to test my theory by comparing the two systems later. My friend has a SE with the LED headlamps so hopefully we can get some side-by-side comparisons!
Now onto the installation….we bought the optional CAN-BUS adapters not sure if the Lexus headlights had this requirement. A lot of German cars like the new E92 M3 and Audi cars need the CAN-BUS to filter the voltage so it can communicate with the factory computer. Otherwise the HID lights won’t fire consistently.
One some Lexus vehicles you have to remove the OEM Intake box or other parts just to gain access to the wiring and bulbs. On the CT, it can be done if you have nimble hands that can work in tight spaces. We opted to remove the stock intake system on the passenger side for easier access.
TOOLS REQUIRED: Wire strippers, electrical tape, soldering gun and solder plus some tie wraps and basic sockets/tools.
Step 1 is to unplug the stock bulb by just twisting it and releasing it from the socket. Do not touch the glass portion of the bulbs!!!
Step 2 is to lay out the OptiksHID kit out so you have all the parts needed and removing the bulb to plug into the headlight. Be sure to test the polarity of the OEM socket so you know which wire is positive and which one is negative. You can use crimps but we opted to solder the connections for a more solid and reliable connection. You want the red wire to go to positive on the OEM wiring harness and the black wire to the negative side.
Step 3 is to plug in the ballast/igniter system and find a good place to tuck both units away. I tie-wrapped it and secured it away from any heat or moving parts.
Now just put back all the OEM plastic inserts and snap the clips in place. I found the aim and position to be nearly perfect from the factory but you may need to adjust the levels if you lowered your car.
The light output is amazing – there is simply no comparison! I don’t know why Lexus didn’t want to do HID’s (maybe to keep the cost down?)
My wife drives this car at night frequently and the upgrade is a MUST if you value safety and bright light! We love the OptiksHID kit as it’s a reliable kit.
Side by Side comparison:
Closeup of HID:
OptiksHID Kit we used:
All done, looking sharp: