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.
Battery groupBCI NS · NS CCAOEM · verified
Tire sizeP245/45R18OEM · verified
Wheel / rimNS inOEM · verified
OE service part numbers OEM · verified
Engine oil filter
12731742 alt 12727115
Engine air filter
84498926 alt 84335354
Spark plug
55504354 alt 12650283
Battery
88864542
Front wiper blades
84574892 alt 84566977
Serpentine belt
12678130 alt 55488926
Thermostat
55516370 alt 12678784
Cabin air filter
13356914 alt 13508023
Full specifications
Engine, drivetrain, dimensions and economy.
Dimensions & weight NHTSA vPIC
Overall length
193.7 in
Overall width
74 in
Overall height
57.1 in
Wheelbase
116.1 in
Curb weight
3799 lb
Track (front / rear)
63 / 63.8 in
Weight distribution (front / rear)
53/47
Performance & power Independent road tests
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.
As the inaugural model for the generation, the 2020 Cadillac CT5 sits at the peak of the federal record arc, exhibiting the highest volume of complaints (36), recalls (4), and technical service bulletins (893) before demonstrating a consistent downward trend in subsequent years. Compared to the 2021 model, which saw complaints drop to 20 and TSBs fall to 795, the 2020 data clearly bears the brunt of the platform's initial teething issues. For the 2020 model specifically, Power Train (6 complaints), Unknown Or Other (5), and Electrical System (4) represent the primary areas of concern, though the federal data does not specify the root causes for these failures. Fortunately, severe safety metrics remain relatively contained with only 2 crash complaints and zero fire complaints reported. Because 2020 represents the most problematic year in the generation's lifecycle, it is a less favorable purchase; buyers should strongly consider a 2021 or newer model, or at minimum, verify that all four recalls and the extensive early-production TSBs have been properly addressed before purchasing a used 2020 CT5.
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.