2007 Cadillac CTS tire sizes & fitment
Approved tire and wheel sizes for the 2007 Cadillac CTS, sourced from manufacturer fitment data and refreshed monthly.
Approved fitments
| Tire size | Rim size | PCD (bolt pattern) | Offset | Load index | Speed rating |
|---|---|---|---|---|---|
| 245/45R18 OEM | R18 | 5x115 | N/A | N/A | N/A |
| 235/50R18 OEM | 8x18 | 5x115 | 48mm | 97 | V |
| 245/45R19 | 8.5x19 | 5x115 | 48mm | 98 | Y |
| 255/40R19 | 9x19 | 5x115 | 45mm | 96 | Y |
| 225/55R16 OEM | 7x16 | 5x115 | 51mm | 94 | H |
| 225/50R17 OEM | 7.5x17 | 5x115 | 51mm | 93 | V |
| 225/45R18 | 7.5x18 | 5x115 | 50mm | 92 | V |
| 235/40R19 | 8x19 | 5x115 | 45mm | 91 | W |
| 225/55R16 OEM | R16 | 5x115 | N/A | N/A | N/A |
| 225/50R17 OEM | R17 | 5x115 | N/A | N/A | N/A |
| 225/50R18 OEM | R18 | 5x115 | N/A | N/A | N/A |
2007 Cadillac CTS wheel bolt pattern & specs
| Bolt pattern (PCD) | 5x115 |
|---|---|
| Wheel thread / lug size | M12x1.5 |
| Center bore | 70.3 mm |
| Source | adaptitusa-reference |
Best by use case
Four tires, four jobs
Best all-season
Bridgestone
Turanza QuietTrack
all-season touring, UTQG 800, 80,000-mi warranty
Best budget
Goodyear
Assurance MaxLife
Lowest cost per mile in this size; UTQG 820
Best quiet
Bridgestone
Turanza QuietTrack
68 dB cabin noise (EU label); quietest in this size
Best winter
Bridgestone
Blizzak WS90
Dedicated winter (premium compound); ice/snow grip
See the best tires for the Cadillac CTS, ranked by category →
Tire recalls & safety complaints for the Cadillac CTS →
Plus-size and winter-downsize options for every Cadillac CTS factory size →
Compatible alternative sizes for 245/45R18
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 |
|---|---|---|---|
275/40R18 |
-0.07% | wider | Safe |
245/40R19 |
0.13% | plus 1 | Safe |
245/50R17 |
-0.13% | alternative | Safe |
225/60R16 |
-0.19% | alternative | Safe |
225/55R17 |
0.24% | winter narrower | Safe |
For the full list of alternatives with comfort/handling impact, see 245/45R18 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 245/45R18 and verdict using the ETRTO ±3% rule.
Common upgrade paths
- Plus-1: 245/40R19; one rim size up, 0.13% OD change. Sharper steering, mild ride penalty, modest cost premium.
- Plus-2: 245/35R20; two rim sizes up, 0.27% 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 2007 cadillac CTS
The 2007 Cadillac CTS ships from the factory on 245/45R18 tires mounted on R18 wheels. 9 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 CTS 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 2007 Cadillac CTS 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 2007 Cadillac CTS, 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 2007 cadillac CTS
Top issue category: Spare Tire
Most reported: Spare Tire (2) · Tires (General) (1)
Reported across: 2007 – 2007 (1 year)
What owners described
Sidewall failure is the most common description, in 11% of these reports. Percentages are shares of the 36 reports covering every model year of the Cadillac CTS 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 |
|---|---|---|---|
| Sidewall failure | 11% | 15% | 0.7× |
| Blowout or sudden deflation | 8% | 20% | 0.4× |
| Pressure-monitoring (TPMS) fault | 8% | 2% | 3.5× |
| Bubble or bulge in the tire | 6% | 6% | 0.9× |
| Loss of control, rollover or collision | 6% | 8% | 0.7× |
| Premature or uneven wear | 6% | 1% | 4.3× |
Mileage at failure
33 of these reports state an odometer reading. The middle report is at 10,000 miles, with 8 in 10 falling between 5,000 and 70,000 miles.
In owners' own words
Verbatim excerpts from complaints filed with NHTSA about Cadillac CTS. Reports are published by NHTSA as filed and are lightly cleaned here only to remove intake codes.
THE CONTACT OWNS A 2010 CADILLAC CTS. THE CONTACT STATED THAT THE TIRE PRESSURE MONITORING SYSTEM SENSOR LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHO DETERMINED THAT THE AIR PRESSURE IN THE TIRES WAS NORMAL. THE TIRE PRESSURE MONITORING SYSTEM WAS RESET BUT THE FAILURE CONTINUED TO OCCUR. ALSO, THE CONTACT INDICATED THAT WHILE ATTEMPTING TO START THE ENGINE THE ODOR OF FUEL WAS PRESENT INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DETERMINED THAT THE EXHAUST NEEDED TO BE CLEANED. THE EXHAUST WAS CLEANED BUT THE FAILURE PERSISTED. THE MANUFACTURER WAS NOT NOTIFIED. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 70,000.
2014 CADDY CTS PIRELLI P7 RUN FLAT 255/35/R19 TIRES TRAVELING SOUTH I95 HEADING BACK TO NY FROM CT. TEMP 37 DEGREES CLEAR SKIES. 55-60 MPH. HIT SLIGHT ROAD IMPERFECTION NOT POT HOLE. RF TIRE BLOWS OUT. THIRD TIME THIS HAS HAPPENED.1ST TIME LF TIRE 4600 MILES 3 MON OLD. 2ND TIME @9600 MILES NJ RF AND RR TIRES BOTH BLOW OUT 4 TIRES 10000 MILES. ALL MINOR ROAD IMPERFECTIONS SPEED @55-65 MPH.COST @ $ 500.00 PER TIRE OUT OF POCKET COST. TIME WASTED AT DEALER. WAGE LOSE MISSING WORK. $2000.00 PLUS. EACH TIME DEALER STATES ROAD HAZARD NOT GM PROBLEM. FIRST TIRE GONE, SAVED TIRES 2/3/AND 4.
THE CONTACT OWNS A 2014 CADILLAC CTS EQUIPPED WITH PIRELLI ZERO RUN FLAT TIRES (NA), SIZE: 235/55ZR17 (NA). THE CONTACT STATED THAT THE FRONT TIRE EXPERIENCED BLISTERS ON THE SIDEWALL. THE CONTACT STATED THAT THE FAILURES OCCURRED AFTER HITTING POTHOLES AT VARIOUS SPEEDS. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS CONFIRMED THAT THE TIRE WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE FAILURE OCCURRED APPROXIMATELY EIGHT TIMES. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE DOT NUMBER AND VIN WERE UNKNOWN. THE VEHICLE FAILURE MILEAGE WAS APPROXIMATELY 43,000. THE TIRE FAILURE MILEAGE WAS 5,000.
2007 CADILLAC CTS WITH TIRE PROBLEMS. CONSUMER STATES THAT THE TIRES WORE OUT AT 9,000 MILES. DEALER DID AN ALIGNMENT THEN THE VEHICLE EXPERIENCED A LOT OF NOISE. MICHELIN DEALER FOUND THAT THE TIRES WERE OUT OF ALIGNMENT. *KB THE CONSUMER STATED THE VEHICLE HAD A DIFFERENT SIZE TIRE, OTHER THAN WHAT WAS SPECIFIED FOR THE VEHICLE. ACCORDING TO THE DOOR STICKER THE VEHICLE SHOULD HAVE HAD 16 INCH TIRES, HOWEVER THE VEHICLE HAD 18 INCH TIRES. THE MECHANIC STATED THE TIRES WERE CHOPPED.
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 2007 Cadillac CTS?
What is the bolt pattern of a 2007 Cadillac CTS?
Can I run a different tire size on my 2007 Cadillac CTS?
Where can I buy tires for my 2007 Cadillac CTS?
What is the recommended tire pressure for the 2007 Cadillac CTS?
Can I fit winter tires in a different size on my 2007 Cadillac CTS?
How often should I rotate the tires on my 2007 Cadillac CTS?
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 CTS is the authoritative source for OEM tire size, load index, and cold-inflation pressure for your specific trim.
- NHTSA SaferCar; recall lookup for the 2007 Cadillac CTS.
- 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.