Cadillac CT4 lug nut torque

Cadillac CT4 owner’s manuals give 100 lb-ft (140 N·m) for 2020, 2021–2026 (M12 wheel nuts) and 140 lb-ft (190 N·m) for 2022–2026 (V-Series Blackwing, M14 wheel nuts). Check which applies to yours. Tighten them in a star pattern with a torque wrench.

Sources checked

Wheel nut torque, 2020, 2021–2026 (M12 wheel nuts)

100lb-ft140N·m

04080120050100150ft-lbN·m
As printed
“Wheel Nut Torque (M12) 140 N·m 100 lb ft”
Source
2026 Cadillac CT4 Owner Manual: Capacities and Specifications, PDF page 376

Cadillac CT4 lug nut torque by model year

Model yearVersionTorqueManual page
2026M12 wheel nuts100 lb-ft (140 N·m)Capacities and Specifications, PDF page 376
2026V-Series Blackwing, M14 wheel nuts140 lb-ft (190 N·m)Capacities and Specifications, PDF page 376
2025M12 wheel nuts100 lb-ft (140 N·m)Capacities and Specifications, PDF page 381
2025V-Series Blackwing, M14 wheel nuts140 lb-ft (190 N·m)Capacities and Specifications, PDF page 381
2024M12 wheel nuts100 lb-ft (140 N·m)Capacities and Specifications, PDF page 377
2024V-Series Blackwing, M14 wheel nuts140 lb-ft (190 N·m)Capacities and Specifications, PDF page 377
2023M12 wheel nuts100 lb-ft (140 N·m)Capacities and Specifications, PDF page 377
2023V-Series Blackwing, M14 wheel nuts140 lb-ft (190 N·m)Capacities and Specifications, PDF page 377
2022M12 wheel nuts100 lb-ft (140 N·m)Capacities and Specifications, PDF page 427
2022V-Series Blackwing, M14 wheel nuts140 lb-ft (190 N·m)Capacities and Specifications, PDF page 427
2021M12 wheel nuts100 lb-ft (140 N·m)Capacities and Specifications, PDF page 398
2020All100 lb-ft (140 N·m)Capacities and Specifications, PDF page 320

Read on Cadillac’s own site on October 19, 2026. Years not listed haven’t been checked yet, or their manual prints no value; check your own manual.

How to tighten them

  1. Clean any dirt or rust off the studs, the nuts and the wheel’s mounting face. Don’t oil them unless the manual says to.
  2. Thread every nut on by hand until it seats against the wheel.
  3. Lower the vehicle so the tire takes its weight, and set a torque wrench to the value for your model year and version in the table above.
  4. Tighten the nuts in a star pattern, going around two or three times, until the wrench clicks on every nut.
  5. Check the torque again after a short drive if your manual says to.

More detail, including how many passes to make: how to torque lug nuts. Setting and using the wrench: how to use a click torque wrench. Nuts or bolts, car by car: lug nuts vs wheel bolts.

Other Cadillac models

Questions

What is the lug nut torque on a Cadillac CT4?

100 lb-ft (140 N·m) for 2020, 2021–2026 (M12 wheel nuts); 140 lb-ft (190 N·m) for 2022–2026 (V-Series Blackwing, M14 wheel nuts), as printed in Cadillac’s owner’s manuals (2020–2026).

Can I use an impact wrench?

Not to finish. An impact wrench can’t set a torque and easily overshoots it, which stretches studs. Run the nuts down by hand or lightly, then finish with a torque wrench in a star pattern.

Should I oil the studs?

Not unless the manual says so. Torque values assume clean, dry threads; oil lets the same torque stretch the stud further. Some manuals, Kia’s and Mazda’s among them, say to keep oil and grease off wheel nuts and bolts altogether.