2013 Cadillac SRX tire sizes & fitment
Approved tire and wheel sizes for the 2013 Cadillac SRX, sourced from manufacturer fitment data and refreshed monthly.
Approved fitments
| Tire size | Rim size | PCD (bolt pattern) | Offset | Load index | Speed rating |
|---|---|---|---|---|---|
| 235/65R18 OEM | R18 | N/A | N/A | N/A | N/A |
| 235/65R18 OEM | 8x18 | N/A | 53mm | 106 | H |
| 235/60R19 | 8x19 | N/A | 53mm | 104 | H |
| 235/55R20 | 8x20 | N/A | 50mm | 102 | V |
| 265/45R21 | 9x21 | N/A | 48mm | 104 | V |
| 235/55R20 OEM | R20 | N/A | N/A | N/A | N/A |
Best by use case
Four tires, four jobs
Best all-season
Goodyear
Assurance MaxLife
all-season touring, UTQG 820, 85,000-mi warranty
Best budget
Goodyear
Assurance MaxLife
Lowest cost per mile in this size; UTQG 820
Best quiet
Michelin
Defender 2
68 dB cabin noise (EU label); quietest in this size
Best winter
Toyo
Celsius CUV
All-weather; ice/snow grip
See the best tires for the Cadillac SRX, ranked by category →
Tire recalls & safety complaints for the Cadillac SRX →
Plus-size and winter-downsize options for every Cadillac SRX factory size →
Compatible alternative sizes for 235/65R18
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 |
|---|---|---|---|
255/50R20 |
0.04% | plus 2 | Safe |
255/55R19 |
0.05% | plus 1 | Safe |
255/60R18 |
0.07% | wider | Safe |
255/65R17 |
0.08% | alternative | Safe |
215/65R19 |
-0.08% | plus 1 | Safe |
For the full list of alternatives with comfort/handling impact, see 235/65R18 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 235/65R18 and verdict using the ETRTO ±3% rule.
Common upgrade paths
- Plus-1: 255/55R19; one rim size up, 0.05% OD change. Sharper steering, mild ride penalty, modest cost premium.
- Plus-2: 255/50R20; two rim sizes up, 0.04% 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 2013 cadillac SRX
The 2013 Cadillac SRX ships from the factory on 235/65R18 tires mounted on R18 wheels. 4 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 Cadillac SRX 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 2013 Cadillac SRX 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 2013 Cadillac SRX, 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 2013 cadillac SRX
Top issue category: Tires (General)
Most reported: Tires (General) (1) · Tread / Belt (1)
Reported across: 2013 – 2013 (1 year)
What owners described
Blowout or sudden deflation is the most common description, in 15% of these reports. Percentages are shares of the 20 reports covering every model year of the Cadillac SRX 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 | 15% | 20% | 0.7× |
| Pressure-monitoring (TPMS) fault | 15% | 2% | 6.3× |
| Tread or belt separation | 5% | 13% | 0.4× |
| Sidewall failure | 5% | 15% | 0.3× |
| Bubble or bulge in the tire | 5% | 6% | 0.8× |
| Loss of control, rollover or collision | 5% | 8% | 0.6× |
Mileage at failure
6 of these reports state an odometer reading. The middle report is at 27,364 miles, with 8 in 10 falling between 5,000 and 120,000 miles.
In owners' own words
Verbatim excerpts from complaints filed with NHTSA about Cadillac SRX. Reports are published by NHTSA as filed and are lightly cleaned here only to remove intake codes.
I HAD A BLOW OUT ON THE OHIO TURNPIKE. IT WAS AT THAT TIME I FIRST CAME TO KNOW CADILLAC NO LONGER PROVIDED SPARE TIRES AS STANDARD EQUIPMENT. A PUMP INCLUDED WHICH IS USELESS IN THE CASE OF A BLOW OUT exists. THE ISSUE IS HOW CAN CADILLAC BE ALLOWED TO SELL CARS WITH OUT SPARE TIRES. IT IS OBVIOUSLY A SAFETY DEVICE THAT SHOULD BE MANDATORY.
THE CONTACT OWNS A 2013 CADILLAC SRX EQUIPPED WITH MICHELIN LATITUDE TOUR TIRES, SIZE: 235/55/R20. THE TIRES WERE MANUFACTURED ON APRIL 15, 2013. THE CONTACT STATED THAT THE TIRES HAD TREAD SEPARATION. THE CONTACT ALSO STATED THAT THE TREAD WAS SEPARATING IN CHUNKS. THE VEHICLE WAS TAKEN TO THE DEALER TO HAVE THE TIRES INSPECTED. THE CONTACT WAS INFORMED THAT ALL FOUR TIRES NEEDED TO BE REPLACED. THE TIRES WERE NOT REPLACED. THE TIRES WERE ORIGINAL EQUIPMENT. THE MANUFACTURER WAS NOT NOTIFIED OF THE TIRE FAILURES. THE APPROXIMATE TIRE AND VEHICLE FAILURE MILEAGE WAS 24,600. THE VIN WAS NOT AVAILABLE.
Vehicle is low mileage for its age (@ 30,000 miles). Four (4) Goodyear tires identified in this report were purchase 04/28/2024 and as of 07/01/2024 had been driven @ 600 miles. On 07/01/2024, the rear drivers' side tire deflated while the vehicle was operational. Vehicle was immediately pulled off the roadway into a parking lot. Tire was removed by roadside service and at that time was noticed a clear "rupture" (although the tire was deflated, the sidewall had a noticeable bulge covering approximately 20% of the tires sidewall surface).
DT: THE CONTACT STATED TIRE PRESSURE MONITORING SENSORS WERE DEFECTIVE. THE MANUFACTURERS RECOMMENDED TIRE PRESSURE BE 32 PSI. HOWEVER, WITHIN 24 HOURS THE SENSORS SUGGESTED THE PRESSURE DROPPED IN ALL FOUR TIRES. THIS CAUSED THE WARNING LIGHTS TO ILLUMINATE, SIGNALING LOW TIRE PRESSURE. THE SENSORS PROVIDED A FALSE READING WHICH ALERTED THE CONTACT THAT AIR SHOULD BE ADDED TO THE TIRES. THIS CAUSED IMPROPER PRESSURE TO BE ADDED, RESULTING IN OVER INFLATION. HE TOOK THE VEHICLE TO THE DEALER THREE TIMES FOR THIS PROBLEM. EACH TIME THE DEALER CALIBRATED THE SENSORS. THIS PROCEDURE TEMPORARILY REMEDIES THE PROBLEM.
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 2013 Cadillac SRX?
Can I run a different tire size on my 2013 Cadillac SRX?
Where can I buy tires for my 2013 Cadillac SRX?
What is the recommended tire pressure for the 2013 Cadillac SRX?
Can I fit winter tires in a different size on my 2013 Cadillac SRX?
How often should I rotate the tires on my 2013 Cadillac SRX?
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 Cadillac SRX is the authoritative source for OEM tire size, load index, and cold-inflation pressure for your specific trim.
- NHTSA SaferCar; recall lookup for the 2013 Cadillac SRX.
- 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 2026-10-07.