What the source says
The documented condition
Lexus documented a sliding-roof rattle on specified RX 350 vehicles when the glass is in the tilted-open position and the vehicle travels over a bumpy road. The repair procedure checks looseness at the drive-cable assembly, services the adjustment-nut contact surfaces and may require cable replacement. A rattle with the roof closed or during normal sliding may have a different source.
Compare the pattern
Symptoms and vehicle scope
Words owners may use
- sunroof rattles over bumps
- moonroof chatters when vented
- roof clicking on rough road
- noise above my head with sunroof tilted
- loose panoramic roof sound
- RX 350 roof rattle
Symptoms in the record
- The noise occurs with the sliding roof in the tilted-open position
- Bumpy roads make the rattle easier to reproduce
- Closing the roof may stop the bulletin-related noise
- A technician can check looseness at the mechanical bracket and rear shoe
Vehicles and limits
- 2019 to 2022 Lexus RX 350 with WMI 2T2
- The bulletin separately includes 2018 to 2022 RX 450h vehicles with WMI JTJ
- The exact roof configuration and symptom must match
Manufacturer position
What the official procedure directs
Lexus directs technicians to remove the roof glass and inspect the drive cable for looseness. The procedure then services the contact areas with grease and installs new adjustment nuts. The cable assembly is replaced only if the rattle remains or looseness is confirmed.
Mileage context
The bulletin does not use a mileage threshold. It stated Lexus Basic Warranty coverage of 48 months or 50,000 miles for the specified condition, subject to the vehicle's current eligibility.
Original evidence
Open the documents behind this record.
Manufacturer bulletin · L-SB-0014-22 · Jun 24, 2022
Rattle Noise When the Sliding Roof Is Tilted Open
The bulletin defines the exact roof position and road condition, then sets out adjustment-nut service and drive-cable inspection.
Repair paths and safe checks
Match the action to the evidence.
Service the roof adjustment points and inspect the cable
A Lexus or body technician removes the glass and checks the drive-cable assembly. The published procedure applies grease to the specified contact areas before the revised nuts are installed. The cable is replaced only when the inspection calls for it.
Removing and aligning roof glass incorrectly can cause wind noise, leaks or glass damage.
Compare tilted, closed and open positions
Clear loose objects from the cabin, then have a passenger note whether the sound occurs only with the roof tilted and stops when fully closed. Record the road type and approximate speed for the technician.
Do not apply general-purpose lubricant or place fingers in the roof mechanism. Keep the vehicle parked whenever inspecting the opening.
Record reviewed in the source on August 2, 2026. Confirm the current document and VIN instructions before arranging work.
How we check a problem · All records for the 2019 Lexus RX 350