2019 Cadillac Ats Lug Nut Torque & Bolt Specs

The 2019 Cadillac Ats lug nut torque is 100 ft-lbs (135 Nm), tightened with a 17mm socket on M12x1.5 studs. Torque in a star pattern in two passes (snug, then final), and re-check after the first 50–100 miles of driving. Use a calibrated torque wrench — not an impact gun — for the final pass.

Lug nut torque: 100 ft-lbs (135 Nm) · Socket size: 17mm · Thread: M12x1.5.

This page is the OEM-referenced fastener summary for the 2019 Cadillac Ats. Use it before any maintenance or repair job where torque values matter — brake work, wheel changes, suspension service, engine teardowns, or oil changes. Specs are pulled from manufacturer service literature, cross-checked against community data, and updated as new chassis variants become available.

GM lug-nut torque clusters around 140 ft-lbs (190 Nm) for half-ton Silverado/Sierra and 100 ft-lbs for passenger cars like Malibu, Impala, and Cruze. GM heavy-duty trucks (2500HD/3500HD) jump to 165 ft-lbs. Most GM passenger cars use a 19mm socket; trucks moved from 22mm to 22mm-with-deep-well in 2014. Watch for GM's flat-flange lug nut design on the Silverado — the standard cone-seat aftermarket lugs will not seat correctly.

Common fastener categories on the 2019 Cadillac Ats

Wheel / lug nut torque and thread spec (covered above)
Brake caliper bracket bolts (typically 80-130 ft-lbs) and slide/guide pins (18-35 ft-lbs)
Engine oil drain plug torque — rarely above 30 ft-lbs; always use a new crush washer
Transmission pan, valve cover, and intake manifold bolts (low torque, often 89-106 in-lbs)
Suspension control arm, sway bar, tie rod end and ball joint torque
Spark plug torque (typically 10-15 ft-lbs on aluminum heads — do not exceed)
Differential cover bolts (RWD/4WD only) and transfer case fasteners

Repair guidance for this model year

For 2019 late-model work: Modern vehicles increasingly use aluminum body and suspension components. Aluminum fastener torque is typically 60-70% of equivalent steel torque, and aluminum threads strip easily. Use a calibrated torque wrench and apply anti-seize on any steel fastener threading into aluminum.

Tools you will need

Metric socket set (8mm-22mm), 6-point impact-rated
Calibrated torque wrench (10-150 ft-lbs covers most automotive jobs; add a 0-250 ft-lbs wrench for truck lug nuts)
Breaker bar (24" minimum) for initial loosening
Penetrating oil (PB Blaster or Kroil) for any fastener over 5 years old
Anti-seize on stainless or dissimilar-metal threads; thread-locker (Loctite blue) on critical reassembly

Frequently asked questions

What is the lug nut torque on a 2019 Cadillac Ats?

The OEM-specified lug-nut torque for the 2019 Cadillac Ats is 100 ft-lbs (135 Nm), using a 17mm socket on M12x1.5 thread studs. Use a calibrated torque wrench in a star pattern, in two passes (50% and 100%), and re-check after 50-100 miles of driving.

What socket size do I need for the 2019 Cadillac Ats lug nuts?

The 2019 Cadillac Ats uses a 17mm socket. A 6-point impact-rated socket is recommended over a 12-point chrome socket — 12-points round off lug nuts under impact-driver use.

Are the 2019 Cadillac Ats fasteners metric or SAE?

Metric is the standard for this vehicle. Most fasteners on this vehicle are metric (M6, M8, M10, M12, M14). Bring a full metric set; SAE substitutes can round the head. Bolt-head markings are the fastest way to confirm grade and material at the bench.

Other Cadillac Ats years

Same model, different model year — fastener spec may change. Always confirm against the year for your VIN.

→ 2019 Cadillac Ats oil drain plug torque & size

→ 2019 Cadillac Ats suspension & steering torque specs (control arm, ball joint, tie rod)

All 12 2019 Cadillac Ats fastener specs

Per-bolt torque, wrench size, and thread spec for the 2019 Cadillac Ats, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both. 2 of the 12 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data.

Brakes — 2019 Cadillac Ats

Brake fasteners on the 2019 Cadillac Ats — caliper bracket, slide pins, and banjo bolt torque follow. The front caliper bracket bolt uses a 18mm drive on a M12x1.5 thread, torqued to 137 ft-lbs (186 Nm) at the front. At the rear, the rear caliper bracket bolt torques to 85 ft-lbs (115 Nm) (18mm drive, M12x1.5 thread). For the front, plan for a 13mm tool on a M8x1.25 stud; final torque is 26 ft-lbs (35 Nm) (front caliper slide pin). Rear caliper slide pin tightens to 26 ft-lbs (35 Nm), takes a 13mm driver, runs on M8x1.25 threads, located at the rear.

Engine — 2019 Cadillac Ats

Engine bolt-by-bolt torque for the 2019 Cadillac Ats, including the long block, valve covers, and intake. The spark plug torques to 15 ft-lbs (20 Nm) (5/8 in. drive, M14x1.25 thread). plan for a 32mm cap tool; final torque is 22 ft-lbs (30 Nm) (oil filter). Confirmed against manufacturer service literature. Oil drain plug tightens to 18 ft-lbs (25 Nm), takes a 15mm driver, runs on M12x1.75 threads.

Suspension — 2019 Cadillac Ats

Suspension and chassis fastener torque for the 2019 Cadillac Ats — strut, control arm, and sway bar values. For the front, plan for a 15mm tool on a M12x1.5 stud; final torque is 37 ft-lbs (50 Nm) (front strut top nut). Front lower control arm bolt tightens to 74 ft-lbs (100 Nm), takes a 18mm driver, runs on M12x1.5 threads, located at the front. The rear lower control arm bolt uses a 18mm drive on a M12x1.5 thread, torqued to 74 ft-lbs (100 Nm) at the rear.

Wheels & Tires — 2019 Cadillac Ats

Wheels & Tires fasteners on the 2019 Cadillac Ats. Lug nut tightens to 100 ft-lbs (135 Nm), takes a 17mm driver, runs on M12x1.5 threads.

Transmission — 2019 Cadillac Ats

Transmission fasteners on the 2019 Cadillac Ats. The transmission drain plug is a 1/8"-27 NPTF thread, torqued to 12 Nm (106 lb-in). OEM-verified spec.

New to torquing wheels? Read our How lug nut torque works — the complete guide for star-pattern sequence, re-torque intervals, and how to read a lug spec — then use the 2019 Cadillac Ats numbers above.

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