If you own a 2004 to 2009 RX330, RX350 or RX400h, there’s a good chance you’ll need to pull the center climate and audio unit out of the dash at some point. Maybe the temperature rocker only works in one direction. Maybe the display goes blank, a button stopped responding, or you’re swapping the radio. Whatever the reason, the removal is the same job, and it’s easier than most owners expect.
A lot of owners put this job off because they’re afraid of breaking the dash. That fear is fair. The trim on this generation is old now, and the clips are brittle. But if you work in the right order and pull from the right spots, you can have the unit on a bench in about an hour without a single broken tab.
When You Actually Need to Pull the Unit
Not every climate complaint needs the panel out. Before you start, think about what you’re chasing:
- Temperature rocker works one way, feels mushy or does nothing. This is usually worn plastic inside the rocker. Pulling the unit gives you a safe way to get at it.
- Display blank or buttons dead for minutes or days at a time. This can be the control unit itself, but it can also be a connector, a poor ground or a weak battery. Check the battery first.
- Air from the wrong vents or only hot or only cold. A failed blend door or mode door actuator can mimic a bad control unit. Don’t pull the dash apart until you’ve ruled those out.
- Replacing the radio or the whole control unit. Same removal, different reason.
Tools You’ll Need
- Plastic trim removal tools (a cheap set is fine, just not a metal screwdriver on the trim)
- 10mm socket with a short extension and ratchet
- A thin flat screwdriver with the tip wrapped in tape
- A towel or two to protect the console and the dash
- A magnetic pickup tool (you’ll understand why below)
- A small tray or cup for bolts
- Your phone, for photos of every connector
Before You Start
Disconnect the negative battery cable. You’ll be unplugging the main harnesses behind the unit, and you don’t want anything powered while you do it.
Lay a towel over the shifter area and the top of the console. The silver and wood trim on this dash scratches easily, and a slipped pry tool will leave a mark you’ll see every day.
Step-by-Step Removal
1. Remove the shifter bezel
The trim around the shift lever is held in by snap clips. There are no screws on top. Lift it from the bottom edge first, working your plastic tool in gently and pulling straight up, not sideways. Once the clips release, set it aside.
2. Remove the power outlet panel
Right below the radio is the panel with the 12V outlet. It’s clip held as well. Pull it toward you evenly. There’s a connector on the back of it, so don’t yank it once it’s loose. Unplug the connector and set the panel aside.
3. Release the side trim on the center stack
On each side of the center stack there’s a vertical silver trim piece. Pry these off with a plastic tool. Start at a bottom corner and work up slowly. If one fights you, stop and look for the clip location rather than pulling harder. These pieces are not cheap to replace.
4. Remove the four 10mm bolts
With the trim off, you’ll see the mounting bolts for the radio and climate assembly. There are four 10mm bolts holding it in. Take them out and drop each one straight into your tray.
This is where the magnetic pickup earns its keep. Owners on the Lexus Owners Club have reported bolts falling into a cavity under the console, and getting them back meant reaching deep into the dash with a magnet. A dab of grease on the socket helps hold the bolt while you pull it out.
If your RX has navigation, the procedure is a bit different. Nav cars have extra bolts for the screen and additional harnesses, so take your time and photograph everything.
5. Pull the assembly and unplug it
Pull the whole radio and climate assembly toward you. It comes out as one piece. Ease it out far enough to reach behind it, then unplug the antenna lead and the main harnesses. Take a photo of the back before you disconnect anything, even if the plugs look like they only fit one way.
6. Separate the climate control unit on the bench
Carry the assembly to a clean table. The climate control unit is bolted to the larger assembly, so you can unbolt it and work on it by itself. This is the point where you can get at the temperature rockers without fighting the dash around you.
Common Mistakes
Prying with metal. A bare screwdriver will chew the edge of the silver trim and gouge the dash. Use plastic tools, and tape anything metal.
Pulling on the wrong side. If you pull the shifter bezel from the top or the side, you put all the force on one clip. Start at the bottom and pull straight up.
Forcing a stuck panel. Something that won’t come out usually has a clip or bolt you missed. Stop and look before you pull harder. Breaking a clip that’s nearly 20 years old is easy. Finding a replacement is not.
Dropping bolts. Already covered, but it’s the number one time waster on this job.
Forgetting the battery. Plugging and unplugging harnesses with the battery connected is asking for trouble.
Buying the wrong replacement unit. If you’re replacing the whole unit, know that nav and non-nav units are not interchangeable, and part numbers for non-nav cars include 84010-0E010, 84010-0E011, 84010-0E020, 84010-0E021, 84010-48120 and 84010-48291. Confirm the number on your own unit before buying.
Reassembly
Reassembly is the reverse. Before you put any trim back, reconnect the battery and test every button you can. Check that the temperature moves both up and down, the display lights, the fan changes speed and the mode buttons switch vents. It’s a lot easier to fix a loose connector now than after the trim is clipped back in.
Then reinstall the four bolts, the side trims, the outlet panel (plug it in first) and finally the shifter bezel. Press clips in with the flat of your palm, not your fingertips, so the pressure is even.
When to See a Shop
Take it to a shop or a dealer if you see corrosion or green discoloration on the connector pins, if the display flickers after a known good battery, or if the problem turns out to be an actuator buried in the HVAC box. Also, if your dash is cracking or sticky, Lexus has run warranty enhancement programs for dashboards on several models from this era, and that repair involves removing the HVAC unit. Ask a dealer whether your VIN was ever included before you take the dash apart twice.
If the Temperature Rocker Is the Problem
The most common reason owners pull this unit is a temperature rocker that only goes one way or stops working. The fault is usually worn plastic pieces inside the rocker, not the electronics. Once the unit is on the bench, the actual fix is small. We make a Temperature Control Button Repair Kit for the RX330, RX350 and RX400h that replaces those worn pieces (a set of four), so you can fix the rocker instead of buying a whole control unit. Our earlier article on the temperature button that only works one way covers that repair in detail.
FAQ
Do I have to remove the radio to get to the climate controls on an RX330?
On the 2004 to 2009 RX, the radio and climate controls come out together as one assembly held by four 10mm bolts. You remove the whole assembly, then separate the climate control unit on the bench.
How long does it take to remove the RX330 climate control panel?
For a first timer working carefully, plan on about an hour to get it out, plus time for whatever repair you’re doing. Most of that time is going slowly on the trim clips.
Will disconnecting the battery reset anything?
Disconnecting the battery can clear things like radio presets and the clock. Write down your presets before you start if you care about them.