Coming Soon
Cadillac CT4 1st Generation
2020–2026 · Alpha 2 · sedan
Compact luxury sedan on GM's Alpha 2 platform (successor to the ATS). 2.0L LSY turbo I4 (237 hp) base, 2.7L L3B turbo I4 (310 hp) on CT4-V. CT4-V Blackwing (2022+) runs the 3.6L LF4 twin-turbo V6 (472 hp / 445 lb-ft) with available 6-speed Tremec manual — spiritual successor to the ATS-V. RWD or AWD. Per GM, North American production ends June 2026.
Watch out: Still relatively new but the LSY 2.0L has documented turbo wastegate-actuator failures; CT4-V Blackwing 3.6L LF4 carbon buildup on intake valves is expected long-term (direct-injection norm).
What your CT4 takes
The parts and fluids that fit this generation. Specs we publish are confirmed against two independent sources; the rest fill in as we verify them.
- Tire size225/45R17✓ VerifiedView
- Key fob batteryCR2450✓ VerifiedView
- CoolantDEX-COOLFrom owner's manualShop
- Cabin air filterParts in catalogShop
- Wiper bladesNot catalogued yetFind yours soon
- Engine oilNot catalogued yetFind yours soon
- Oil filterNot catalogued yetFind yours
- Engine air filterNot catalogued yetFind yours
- Spark plugsNot catalogued yetFind yours soon
- Headlight bulbsNot catalogued yetFind yours soon
- BatteryNot catalogued yetFind yours soon
- Brake fluidNot catalogued yetFind yours soon
- Transmission fluidNot catalogued yetFind yours soon
- Tire pressureNot catalogued yetFind yours soon
- Power steering fluidNot catalogued yetFind yours soon
- Differential fluidNot catalogued yetFind yours soon
- Serpentine beltNot catalogued yetFind yours soon
- Brake padsNot catalogued yetFind yours soon
- Wheel fitmentNot catalogued yetFind yours soon
- Brake rotorsNot catalogued yetFind yours soon
- ThermostatNot catalogued yetFind yours soon
- A/C refrigerantNot catalogued yetFind yours soon
- Fuel filterNot catalogued yetFind yours soon
Full clubhouse — owner Garage Lineage, common problems, year-by-year notes, and product picks — is on the build list.
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