2018 Lexus LS tire sizes & fitment
Approved tire and wheel sizes for the 2018 Lexus LS, sourced from manufacturer fitment data and refreshed monthly.
Approved fitments
| Tire size | Rim size | PCD (bolt pattern) | Offset | Load index | Speed rating |
|---|---|---|---|---|---|
| 245/50R19 OEM | R19 | N/A | N/A | N/A | N/A |
| 245/45R20 OEM | R20 | N/A | N/A | N/A | N/A |
Best by use case
Four tires, four jobs
See the best tires for the Lexus LS, ranked by category →
Tire recalls & safety complaints for the Lexus LS →
Compatible alternative sizes for 245/50R19
Sizes within the ETRTO ±3% overall-diameter safe-fit tolerance. Each row links to the size's own page.
| Alternative size | %Δ OD | Category | Verdict |
|---|---|---|---|
225/60R18 |
-0.05% | winter narrower | Safe |
275/40R20 |
0.05% | plus 1 | Safe |
215/45R21 |
-0.10% | plus 2 | Safe |
245/55R18 |
-0.12% | alternative | Safe |
245/45R20 |
0.12% | plus 1 | Safe |
For the full list of alternatives with comfort/handling impact, see 245/50R19 upsize options. To check an arbitrary size pair, use the tire compatibility calculator.
Check a different size against this vehicle
Type any tire size below; we'll compute its overall-diameter delta against the OEM 245/50R19 and verdict using the ETRTO ±3% rule.
Common upgrade paths
- Plus-1: 275/40R20; one rim size up, 0.05% OD change. Sharper steering, mild ride penalty, modest cost premium.
- Plus-2: 215/45R21; two rim sizes up, -0.10% OD change. Noticeable ride penalty, higher pothole risk, meaningful tire-cost premium.
Use the plus-size calculator to evaluate any rim step against the OEM size.
How to choose tires for the 2018 lexus LS 500h
The 2018 Lexus LS 500h ships from the factory on 245/50R19 tires mounted on R19 wheels. 2 approved fitments are documented for this model year, allowing some flexibility between performance, comfort, and winter compounds. The Compatible alternative sizes table above lists every safe substitution within the ETRTO ±3% overall-diameter tolerance.
Tire choice on the Lexus LS comes down to three trade-offs that matter more than brand loyalty: load index (must equal or exceed the OEM number), speed rating (must match or exceed the placard), and UTQG treadwear (higher means longer life, lower usually means stickier rubber). Owners replacing factory tires with the same compound class, for example all-season for all-season, generally see no change in ride characteristics or fuel economy. Switching categories (performance summer to all-season touring, for example) is where the trade-offs show up at the contact patch.
For 2018 Lexus LS 500h owners considering a plus-size upgrade, the safer option is a Plus-1 step (one rim size up with a 10-point aspect drop and ~10 mm of additional section width). Plus-2 is technically viable on this chassis if the alternative-sizes table lists a Plus-2 candidate within tolerance, but expect a meaningful ride-harshness penalty and a tire-cost premium of 30–60% per tire relative to the OEM fitment. For winter use the recommended pattern is one width step down (e.g. from a 235 to a 225) with the aspect ratio bumped up to preserve overall diameter; narrower tires apply higher contact pressure per square inch on snow, which translates directly into shorter braking distances. The plus-size calculator evaluates any specific rim step against this OEM size.
Before purchasing, verify the tire size on the driver-door placard of your specific 2018 Lexus LS 500h, since trim levels and option packages can shift the original fitment from what is documented here. The placard reading is the authoritative source per FMVSS 110, and dealers will reference the placard rather than aftermarket catalogs when validating warranty claims.
NHTSA-reported issues for 2018 lexus LS
Top issue category: Tires (General)
Reported across: 2018 – 2018 (1 year)
What owners described
Blowout or sudden deflation is the most common description, in 30% of these reports. Percentages are shares of the 10 reports covering every model year of the Lexus LS that include a written account; a single report can describe more than one problem, so they do not total 100%.
| Reported problem | This subject | All tire complaints | Relative |
|---|---|---|---|
| Blowout or sudden deflation | 30% | 20% | 1.5× |
| Loss of control, rollover or collision | 30% | 8% | 3.6× |
| Bubble or bulge in the tire | 10% | 6% | 1.7× |
In owners' own words
Verbatim excerpts from complaints filed with NHTSA about Lexus LS. Reports are published by NHTSA as filed and are lightly cleaned here only to remove intake codes.
I have purchased 3 tires through Amazon. 2 tires on February 14th 2023 and 1 tire on July 25th 2023. I have since replaced 2 tires due to them being defective. The latest tire purchased February 14th 2023 now has a bubble on the tire. All tires have been professionally installed and balanced. I would like to get this resolved as soon as possible. Tires should last longer than this. I have attached invoices and pictures. Multiple attempts have been made to contact Amazon and Turbo Wholesale without any resolve. Thank you, [XXX]S.C. 552(B)(6) Thank you, Amir Azam
OEM Bridgestone Turanza EL440 RFT 245/45 R20 These tires have not retained recommended air pressure for more than a few weeks at a time since new. Inspection earlier this year by a Bridgestone dealer found no problem with a tire that had lost 5 psi in a week. The tire subsequently began making a rotational noise that the Lexus dealer diagnosed as a slipped belt. Having replaced the defective tire, I now have the same noise symptoms arising in another tire. The dealer can find no reason for the chronic air loss in the two left side tires which, given the developing rotational noise, I expect will soon have similar belt failure. Dealer personnel admit that these tires are problematic. Bridgestone customer service has been unresponsive.
ON 9/6/2007 I HAD A FLAT TIRE. I TOOK IT TO THE TIRE PLACE, I BOUGHT A NEW TIRE THAT THEY INSTALLED. AS I DROVE AWAY I HEARD A CLICKING SOUND AND I WENT BACK TO THE STORE. TWO STUDS WERE BACKED UP A LITTLE AND LOOSENED THE NUTS. ON 11/23/2007 I HAD TO REPLACE TWO TIRES. I TIGHTENED THE STUDS. I DROVE SEVERAL HUNDRED MILES AND THEN ON 11/29/2007 I WAS ON THE FREEWAY AND SUDDENLY THE CAR WAS SHAKING AND HARD TO CONTROL. I REDUCED SPEED AND PULLED ONTO THE SHOULDER. I CALLED FOR A TOW TRUCK AND TOWED THE CAR TO THE LEXUS DEALER. ALL THE NUTS WERE BROKEN ON THE DRIVERS SIDE REAR TIRE. WHEN THE TOW TRUCK DELIVERED THE CAR, THERE WERE THREE NUTS ON THE GROUND FROM MY CAR. THE LEXUS DEALER REPLACED NUTS, SPRINGS, HUB AND BEARING ASSEMBLY, DISC PAD PIN, DISC CYLINDER ASSY. DISC BRAKE PAD KIT, FLAGE BOLT, PARK LEVER SUB-ASSY. I HAVE ALL PARTS THAT WERE REPLACED.
ALL FOUR TIRES WERE WORN OUT AND AIR WAS KEEP OUT CONTINUOUSLY STARTING AROUND 25,000 MILES. COULDN'T FIND THE REASON UNTIL ALMOST 30,000 MILES EVEN TOOK A LOOK SEVERAL TIMES. FINALLY I FOUND ALL FOUR TIRES GOT SEVERE WEAR ON INSIDE TREAD WHICH EXPOSED WIRE THREAD. THE FACT I'D LIKE TO COMPLAINT IS WE,CONSUMER CAN NOT EASY TO FIND OUT THOSE PROBLEM UNTIL EITHER TIRE FLAT COMPLETELY OR BLOW OUT WHILE DRIVING OR UNTIL LIFT-UP IN SERVICE SHOP OR UNTIL WE HAVE TRAGEDY ACCIDENT. I COMPLAINED TO LEXUS TO INSPECT FOR PUBLIC SAFETY BUT THEY SAYING THAT THEY CAN REIMBURSE FOR THE PRICE OF 2 PAIRS INSTEAD OF PHYSICAL INSPECTION. BUT MY INTENTION IS NOT ON REIMBURSEMENT BUT PREVENT POSSIBLE ACCIDENT BECAUSE I HEAR SIMILAR CASE ON SAME MODEL LS460 OF MY BROTHER,FRIEND. I REPLACED ALL FOUR TIRES WITH ANOTHER BRAND AND KEEPING ALL FOUR OLD TIRES UNTIL THE PROBLEM IS FOUND.
Complaints are voluntarily submitted to the NHTSA Office of Defects Investigation and are not verified by NHTSA; they represent owner-reported problems, not proven defects. Counts can be useful as a relative quality signal across comparable tires or vehicles.
Frequently asked questions
What size tires fit a 2018 Lexus LS?
Can I run a different tire size on my 2018 Lexus LS?
Where can I buy tires for my 2018 Lexus LS?
What is the recommended tire pressure for the 2018 Lexus LS?
Can I fit winter tires in a different size on my 2018 Lexus LS?
How often should I rotate the tires on my 2018 Lexus LS?
For broader tire questions; replacement timing, UTQG, EV-specific tires, winter swaps; see the tire FAQ.
Sources for this page
- Vehicle owner's manual tire & wheel placard; door-jamb placard on the Lexus LS is the authoritative source for OEM tire size, load index, and cold-inflation pressure for your specific trim.
- NHTSA SaferCar; recall lookup for the 2018 Lexus LS.
- ETRTO 2024 Standards Manual §2.3; overall-diameter math used for the alternative-size verdicts above.
- Tire & Rim Association 2025 Yearbook; load-index to maximum-load reference.
Last verified 2026-09-02.