Fluid capacities, tune-up values and fuel economy at a glance.
Engine oil capacity5.28 qtOEM · verified
Engine oil typeDEXOS I* Gen II 0W–20OEM · verified
Lug nut torque140.0 ft-lbsOEM · verified
Fitment & sizes
Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.
From the factory this vehicle uses a BCI NS · NS CCA battery, OE oil filter 12731742. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.
0–60 mph, quarter-mile, horsepower and torque from independent road tests.
Independent road tests for the CT5 of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.
6.6–7.1 sec0–60 mph (tested)quickest 6.60 sec — 2020 Sport 350T Sedan
Year
Trim / engine
0–60
¼ mile
HP
Drivetrain
2020
Sport 350T Sedan 2.0L Turbo I-4
6.60 sec
15.00 sec
237 hp
RWD
2020
Sport 350T Sedan 2.0L Turbo I-4
7.10 sec
15.30 sec
237 hp
RWD
2021
Premium Luxury Sedan 2.0L Turbo I-4
6.70 sec
15.00 sec
237 hp
AWD
Service quick specs OEM factory data
Capacities, torques and tune-up values from the factory service manual.
This engine holds 5.28 qt of DEXOS I* Gen II 0W–20 engine oil, Dot 4 brake fluid. Torque lug nuts to 140 ft-lbs. The firing order is 1-2-3-4-5-6.
Intake Manifold to Engine Bolts — tightening sequence 1 stages
1
3.6 ft. lbs. Step 2: 11.0
3.6 ft. lbs
Main Bearings — tightening sequence 1 stages
1
15.0 ft. lbs. Step 2: 120°
15 ft. lbs
Oil Pan to Block Bolts — tightening sequence 1 stages
1
Install New Bolts and Tighten by Hand., Step 2
18 ft. lbs
Oil Pan to Block Bolts — tightening sequence 1 stages
1
Install New Bolts and Tighten by Hand., Step 2
18 ft. lbs
Factory maintenance schedule OEM · verified
Normal service, condensed from the factory interval matrix.
Under the factory schedule, replace the spark plugs every 60,000 mi; coolant at 150,000 mi. The big-interval services (at 150,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.
Every 7,500 mi
Accelerator Pedal (inspect) · Body Latches, Locks & Hinges (lubricate) · Brake Shift Interlock Solenoid (inspect) · Brake System (inspect) · CV Joint Boot (inspect) · Engine Air Filter Element (inspect)
Every 15,000 mi
Windshield Wiper Blade (replace)
Every 22,500 mi
Cabin Air Filter (replace)
Every 45,000 mi
Engine Air Filter Element (replace) · Fuel Evaporative Emission Control System (inspect)
Accessory Drive Belt (inspect) · Drive Axle Assembly (drain & refill) · Engine Coolant System (drain, flush & refill)
Reliability & federal safety record
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The 2020 Cadillac CT5 is the debut model year of the generation, and its federal record reflects a classic first-year teething profile: it carries the highest complaint count (36) of any year in the dataset, double the 20 complaints recorded for 2021 and quadruple the 9 logged in 2022. It also ties 2021 for the most recalls at four, retains an active investigation, and leads the generation in technical service bulletins at 893—a figure that declines steadily each subsequent year, indicating Cadillac was actively patching early-production issues. The top complaint areas—Power Train (6), Unknown or Other (5), and Electrical System (4)—suggest a broad rather than narrowly concentrated set of early defects, and the data does not specify root causes for any of them. Two crash complaints are present, though zero fire complaints were recorded. By 2022, complaints and recalls drop sharply and investigations fall to zero, marking the point at which the platform appears to have stabilized. The 2020 sits squarely at the peak of the generation's problem arc, meaning buyers are taking on the maximum first-year risk with the least benefit of post-launch refinement. If you are set on a used CT5, prioritizing a 2022 or later model year will likely yield a more trouble-free ownership experience; the 2020 is best approached only at a meaningful discount with a verified recall-completion history.
4
Open recalls
NHTSA campaigns
893
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
33
Owner complaints
2 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★★
Side★★★★★
Rollover★★★★★
Owner complaints by model year NHTSA · this generation & adjacent
General Motors, LLC. (GM) is recalling certain 2020-2022 Cadillac CT4 and CT5 vehicles. The roof rail side-curtain air bags may not have been installed correctly, which could result in an improper air bag deployment… Remedy: Dealers will inspect both left and right-side roof rail air bags and reinstall the air bags, as necessary, free of charge. Owner notification letters were mailed on August 30…
20V588000Service BrakesReported 24/09/2020
General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic… Remedy: GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service…
Technical service bulletins NHTSA · verified
Showing 5 of 893 bulletins on record with NHTSA.
Bulletin
Date
Component
Summary
PIT6511
2026-04-24
Unknown Or Other
This Preliminary information communicates an issue with a replace or low FOB battery…
PIT3271Q
2026-04-01
Unknown Or Other
This preliminary information communicates information about how to determine if a wheel…
PIP6104
2026-03-09
Unknown Or Other
This Preliminary information communicates the steps on how to save a GDS2 Session Log and…
PIP4902V
2026-03-09
Unknown Or Other
This preliminary information advises a dealer on how to email GDS2 session logs into…
PIT6425D
2026-03-02
Unknown Or Other
This Preliminary information communicates to the field on how to diagnosis a GPS issue…
Common OBD-II trouble codes
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.