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Service bulletins for the 2018 Lexus LS

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

60 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
L-TT-0261-192019-07-08. Service bulletin. EQUIPMENT. TT: While performing the retrofit TSB, and creating the USB stick, it is critical that all files that are included in the .zip folder are extracted in the root directory (not in any folders) of the USB drive.
L-SB-0029-192019-07-08. Service bulletin. WHEELS. TSB: Some 2011 ? 2019 model year Lexus vehicles (including RX350HL, RX450HL, LS460L, and LS600HL) with super chrome wheel finishes may become discolored and/or damaged when aftermarket cleaners, polishes, or brake dust removal products are used on wheels with super chrome finishes. Wheel cleaners and polish that contain acidic substances may damage the clear coat of the wheel, resulting in the undercoating (black) to become visible. See Figures 1 and 2 below for examples of wheel finishes damaged by aftermarket products. NOTE If using a wheel cleaning product, first test it in an area NOT visible to the customer.
L-SB-0020-192019-05-13. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT ADAPTIVE/MOBILITY. TSB: Some 2018 ? 2019 model year Lexus vehicles equipped with the Enform? 2.0 Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update; however, the process for generating license keys differs from previous generations. Before attempting to perform a map update, the head unit?s expiration date must be checked. If the expiration date is still valid, a license key may be generated without the use of an activation card number. Updating the maps without the use of an activation card number is considered an Embedded Navigation Update (refer to pg. 9), and performing this process does not extend the duration of telematic map services. If the head unit?s expiration date is expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an activation number. Utilizing an activation number will initiate a Dynamic Navigation Update (refer to pg. 3). This Dynamic Navigation Update will perform the Embedded Navigation Update and provide telematic map services for a period of two years from the day that the Dynamic Navigation Update is performed. Activation card numbers are provided in an activation card number pamphlet available through the normal parts ordering system. Follow the process in this bulletin to perform the update. NOTE Map data is released once each year through the shipment of an SST USB flash drive to each dealer. The SST MUST be stored in the SST cabinet to ensure it can be easily found.
JLH_Dealer Daily2019-05-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Dealer Daily Message: **UPDATED Dealer Letter Available on TIS** Certain 2018 Model Year LS 500 and LS 500h Certain 2018 Model Year NX 300 and NX 300h Certain 2018 Model Year RX 350L and RX 450hL Certain 2017 ? 2018 Model Year RX 350 and RX 450h Intelligent Clearance Sonar (ICS) System Reprogram Special Service Campaign ? UIO quantities and production ranges have been updated to reflect added vehicles.
L-SB-0019-192019-05-13. Service bulletin. EQUIPMENT; ENGINE. TSB: Some 2018 model year LS500 vehicles may exhibit a vibration due to a rough idle after cold soak. This condition is only present when the vehicle is first started after cold soak. The check engine light will not be present with this condition. Follow the Repair Procedure in this bulletin to address this condition.
L-SB-0018-192019-05-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION. TSB: Some 2018 model year LS500 and LS500h vehicles equipped with air suspension may exhibit an uneven ride height appearance (lean) after parked on an uneven road surface. This condition can be observed when viewed from the rear of the vehicle or while driving from behind. Follow the Repair Procedure in this bulletin to address this condition. NOTE It is recommended to print this Service Bulletin to record the requested measurement data points.
JLH_Clearance Wa2019-05-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Technical Instructions:
L-SB-0039-18_Rev2019-05-13. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN:AUTOMATIC TRANSMISSION. TSB: Some 2018 ? 2019 model year LS500 vehicles may exhibit one or both of the following transmission-related conditions: ? R to D shift delay when vehicle is cold ? Shift bump when slowing to a stop The Engine Control Module/ECM (SAE Term: Powertrain Control Module/PCM) logic has been revised to address these conditions. Follow the Repair Procedure in this bulletin to address these conditions. REVISION NOTICE April 8, 2019 Rev1: ? Applicability has been updated to include 2019 model year LS500 vehicles. ? The entire bulletin has been updated. Any previous printed versions of this bulletin should be discarded.
L-SB-0017-192019-05-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. TSB: Some 2010 ? 2019 model year Lexus vehicles may exhibit paint stains after the removal of Rapgard?. The paint stains may appear to be under the clear coat but are usually under wrinkles in the Rapgard?. The wrinkles may trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces such as the hood, roof, and trunk. Follow the Repair Procedure in this bulletin to address this condition.
L-TT-0253-18_Rev2019-03-18. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL. TT: The microphone circuit passes through the DCM before reaching the radio/navigation system. To simplify the diagnosis of the microphone, Safety Connect SOS button lights, and DCM (telematics transceiver) inoperative conditions, refer to the procedure below to prevent unnecessary parts replacement.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.