2020 Cadillac CT4
The 2020 Cadillac CT4 is sold in the U.S. as a gas compact sedan with 6 EPA-rated configurations. The most efficient version, the CT4, is EPA-rated at 27 mpg combined. NHTSA lists 4 recall campaigns for this model year, 1 rated critical, which gives it a Safety Signal grade of C. Owners have filed 8 complaints, most often about the engine.

Specs & fuel economy
Source: EPA fueleconomy.gov| Configuration | Powertrain | Drive | Engine / motor | City | Hwy | Comb | Annual fuel* |
|---|---|---|---|---|---|---|---|
| CT4 | Gas | RWD | 2.0L 4-cyl turbo | 23 | 34 | 27 | $3,050 |
| CT4 AWD | Gas | AWD | 2.0L 4-cyl turbo | 23 | 32 | 26 | $3,150 |
| CT4 | Gas | RWD | 2.7L 4-cyl turbo | 20 | 30 | 24 | $3,400 |
| CT4 AWD | Gas | AWD | 2.7L 4-cyl turbo | 20 | 28 | 23 | $3,550 |
| CT4 V | Gas | RWD | 2.7L 4-cyl turbo | 20 | 29 | 23 | $3,550 |
| CT4 V AWD | Gas | AWD | 2.7L 4-cyl turbo | 20 | 28 | 23 | $3,550 |
*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 42467, 42466, 42463, 42464, 42481, 42465.
Emissions & certification
Source: EPA emission certificates| Configuration | Smog rating | Emission standard | Where it can be sold new | SmartWay |
|---|---|---|---|---|
| CT4, CT4 AWD, CT4 V, CT4 V AWD | 6 / 10 | California LEV-III ULEV50 / Federal Tier 3 Bin 50 | All 50 states (federal, all altitudes); California and states following California standards | — |
Certified for all fifty states, so it can be registered new anywhere in the U.S.
The smog rating scores tailpipe pollutants other than greenhouse gases, 1 (worst) to 10 (best), and is comparable only within a model year. The standard is the federal bin or California tier the configuration was certified to. Both come from the EPA certificate behind the window sticker.
Specifications filed with NHTSA
Source: NHTSA vPICDimensions Exterior
| Body style | Sedan/Saloon |
| Doors | 4 |
| GVWR class | Class 1: 6,000 lb or less (2,722 kg or less) |
Engine Basics
| Cylinders | 4 |
| Displacement | 2 L |
| Engine configuration | In-Line |
Fuel Economy
| Fuel | Gasoline |
Transmission
| Drivetrain | RWD/Rear-Wheel Drive |
Filed by the manufacturer with NHTSA under the federal vehicle-identification rule and decoded from the VIN pattern — not a manufacturer press kit, so it describes the configurations we could identify rather than every trim (seen: Luxury, Premium Luxury). Figures for the trim you are looking at may differ.
Dimensions & weight
Source: Transport Canada| Length | 187.4 in |
| Width (body, without mirrors) | 71.7 in |
| Height | 55.9 in |
| Wheelbase | 109.4 in |
| Track, front | 60.2 in |
| Track, rear | 61.8 in |
| Curb weight | 3,422–3,732 lb |
| Weight distribution, front/rear | 52/48 |
Measured by Transport Canada for its Canadian Vehicle Specifications database, which covers the North American versions of each model — here 4 configurations: 2.0L 4-door Sedan AWD, 2.0L 4-door Sedan RWD, 2.7L / V-Series 4-door Sedan AWD, 2.7L / V-Series 4-door Sedan RWD. Where a range is shown, those versions differ. Width is the body without mirrors, which is why it can read narrower than a brochure figure. Before we used it we checked it against the US manufacturer press kits we hold (27 Sep 2026): wheelbase agreed within 1% on every vehicle we could compare, length on 98%, and the curb weight fell inside the manufacturer's range on 96%. Source dataset. Contains information licensed under the Open Government Licence – Canada. Licence.
Factory warranty running out?
The 2020 Cadillac CT4 is in the years where transmission, electronics and drivetrain repairs land on the owner. What an extended plan does and does not cover is worth reading before a dealer quotes you one.
What to check before you buy →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Recalls (4)
Source: NHTSA recall databaseExterior Lighting
N222386380Air Bags
N212342780Service Brakes
A202307260These are vehicle campaigns — the ones the automaker filed against this model. NHTSA also records equipment recalls, filed by a parts maker against a component (a tyre, a child seat, an aftermarket part), and those are not listed here or counted above. nhtsa.gov/recalls shows both for a VIN.
NHTSA defect investigations
Air Bags:Srs Malfunction Warning Lamp/Light — Air Bag Malfunction closed
On April 9, 2021, the Office of Defects Investigations (ODI) opened PE21-010 to investigate instances of air bag malfunction indicator light (MIL) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by General Motors (GM). The vehicles included model year (MY) 2020 through 2021 CT4 and CT5 passenger cars, Sierra and Silverado trucks (1500/2500/3500 models), XT4 and MY 2021 Escalade, Suburban, Tahoe, Yukon SUVs. Technical Service Bulletin (TSB) 21-NA-005, issued in March 2021, addresses air bag MIL illumination with diagnostic trouble codes (DTCs) B0001-1B or B0012-0D. It cites rust particles in the connection terminal interface of the driver air bag
Opened Apr 9, 2021 · closed Aug 24, 2023 · action PE21010 · the investigation’s page →
Whether any of this applies to one specific CT4
A campaign covers a build range, not a model year, so two identical-looking cars from 2020 can differ. Both of these check a VIN against the manufacturer’s own list, free, in about ten seconds. Cadillac publishes its own lookup because federal rule 49 CFR 573.15 requires it to, and to keep it current to within seven days.
Hear about a recall before the letter does
The manufacturer’s letter is the last step of a recall: it has up to 60 days after filing to mail owners, at the address on the registration. We email you the day NHTSA posts a recall on the 2020 Cadillac CT4, with what to do next. Nothing else, ever — no newsletter, no marketing, one-click unsubscribe in every message.
Parts & accessories for the 2020 Cadillac CT4
Search by fitment on eBay Motors — OEM take-offs, aftermarket, and the trim pieces dealers no longer stock. The listing and the price are the seller's.
Find parts for this CT4 →Owner complaints
Source: NHTSA complaint database0 involved a crash · 0 a fire · 0 injuries · 0 deaths reported
14 per 10,000 built · Cadillac reported 5,924 CT4 built (its Early Warning production report to NHTSA)
Filed per year: 2021: 1 · 2024: 1 · 2025: 1 · 2026: 5
Most-cited components
In owners' own words
Filed with NHTSA by the people who own these cars, one per problem area. Quoted as written, with anything identifying removed.
Total brake system failure. Lost almost all brake function nearly causing an accident. June 17, 2026 car was taken to dealership. Electronic Brake Control Module (EBCM), Brake Master Cylinder, Brake Pedal Retainer replacement required. August 7, 2026 received a call from dealer stating that EBCM replacement was faulty or failed.
69,000 mile oil change I was told i needed to spend thousands of dollars on repairing an oil leak b/c my Cam carrier is leaking. Cadillac has a know issue with this repair and refuses to stand behind it's product. Numerous complaints already on forums and yet they charge thousands to fix.
I had two incidents with the Cadillac CT-4 in February and then again in April of 2026 of driving on I-75 at a highway speed of about 70 MPH when the vehicle suddenly downshifted and the engine revving at at very high RPM. The vehicle slowed down suddenly and it felt for a moment that I could not control the speed.
The contact owns a 2014 Cadillac CT4. The contact stated that the "Service Safety Restraint System" message was displayed on the instrument panel while driving. The vehicle was taken to the dealer who diagnosed that the air bags needed to be replaced. The vehicle was not repaired due to the parts not yet being available.
The electronic brake control module, break retainer, brake master cylinder and brake valve all failed. I was driving to lunch and coming down a hill when multiple warning lights turned on as I pressed the brakes.
The vehicle shudders and loses power when accelerating fast. My wife almost got hit when she pulled out in traffic the car stalled out. It is due to the cylinder deactivation (afm)
Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.
Reported by Cadillac itself: 3 death-or-injury claims on this model year in its quarterly Early Warning reports to NHTSA (49 CFR 579.21): 4 injured, as claimed, not verified — about 51 per 100,000 built. Every CT4 model year, by year and system → Dated and by system, they are exhibit F of the defect dossier.
Crash ratings
Source: NHTSA NCAPNHTSA has not published 5-Star crash ratings for this model year.
Service bulletins & campaigns
Source: NHTSA manufacturer communications- 15 years or 150,000 miles, whichever comes first · GM service campaign N242480631-04Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve.
- 15 years or 150,000 miles, whichever comes first · GM warranty extension N242480631-03Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve.
- 15 years or 150,000 miles, whichever comes first · GM service campaign N242480631-02Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve.
- 15 years or 150,000 miles, whichever comes first · GM service campaign N242480631-01Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve.
- 15 years or 150,000 miles, whichever comes first · GM service campaign N242480631Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve.
- Term not in NHTSA’s summary · GM warranty extension 22-NA-244This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
The term and the vehicles it covers are the manufacturer’s, as NHTSA’s summary of each filing states them; a dealer checks one particular car by its VIN. Every GM warranty extension (33) → · Every warranty extension on file, all makes →
Most often about: Equipment, Electrical System, Engine, Unknown Or Other, Power Train.
- PIT5698F Service bulletin2026-09-26 · Unknown Or Other
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- PIP5700H Service bulletin2026-09-21 · Unknown Or Other
- This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering
- PIC6555A Service bulletin2026-09-08 · Unknown Or Other
- This PI advises of a procedure for a Service Door Latch System message with No Related DTCs
- PIP4902W Service bulletin2026-09-04 · Unknown Or Other
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- PIT6446A Service bulletin2026-07-24 · Unknown Or Other
- This PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used.
- PIT5099J Service bulletin2026-07-21 · Unknown Or Other
- PI to help diagnose A/C concern
- PIP6115 Service bulletin2026-05-21 · Unknown Or Other
- The document advise technicians after an engine repair involving removal of the camshaft actuators, the vehicle may set p1101 P0172 and or stalls when taken off idle. The technician is instructed to verify the intake and exhaust camshaft actuators are installed onto the correct camshafts.
- PIT6215C Service bulletin2026-05-21 · Unknown Or Other
- This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.
A service bulletin is the manufacturer telling its dealers how to diagnose or repair a known condition. It is not a recall, not a finding that the vehicle is defective, and the work is not automatically free — though a bulletin is often what a dealer works from when you describe a symptom, so quoting the document number can save a diagnosis. The count is every communication filed; the list shows the most recent, one entry per campaign, because a single campaign is usually filed as several documents on the same day. The summaries are NHTSA's; the full documents come from the manufacturer.
Diagnostic trouble codes on file
Source: NHTSA manufacturer communications and complaintsCodes documented against this model year in the federal record. A code appearing here does not mean this vehicle will set it — it means the code is part of this nameplate-year's documented history.
| Code | What it means | Most often filed under | Where it appears |
|---|---|---|---|
| P30BF P30BF on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Unknown Or Other | 13 bulletins |
| P04FB P04FB on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Unknown Or Other | 10 bulletins |
| P26BB P26BB on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 8 bulletins |
| P1098 P1098 on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 6 bulletins |
| P0747 P0747 on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Power Train | 5 bulletins |
| P30C3 P30C3 on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 5 bulletins |
| P30C7 P30C7 on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 5 bulletins |
| P30CB P30CB on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 5 bulletins |
| B3055 B3055 on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Air Bags | 4 bulletins |
| B3060 B3060 on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Air Bags | 4 bulletins |
| B3935 B3935 on Cadillac → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Air Bags | 4 bulletins |
| P0300 P0300 on Cadillac → | Misfire detected, but not isolated to one cylinder. | Engine · Ignition coils → | 4 bulletins |
Generic codes (the second character is 0 or 2) mean the same thing on every vehicle sold in the United States. Manufacturer-specific codes (1 or 3) mean whatever the automaker assigned, and no honest source can define them for you — which is why the ones here carry the evidence instead of a definition. A code is a link when enough separate federal documents name it across the catalogue to be worth a page of its own; the rest are listed here, where the vehicle is the context that makes them mean something.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
At the New York inspection station
Source: New York State DMVIn New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2020 Cadillac CT4 failed the emissions check on 3.0% of first inspections — higher than the 2.2% for every 2020 model-year vehicle inspected; and the safety inspection on 1.5% (every 2020 vehicle: 1.6%).
failed emissions
203 initial inspections of 194 vehicles.
| Measure | The 2020 CT4 | Every 2020 vehicle | Behind it |
|---|---|---|---|
| Failed the emissions check | 3.0% | 2.2% | 202 |
| Failed the safety inspection | 1.5% | 1.6% | 203 |
| Air-bag warning lamp stayed lit | 0.49% | 0.19% | 203 |
| Miles driven a year | 7,036 | 9,980 | odometer at inspection |
| Average odometer | 44,050 | 62,630 | odometer at inspection |
New York’s emissions test on these model years is an on-board diagnostics check: it fails a car whose check-engine light is on or whose self-tests have not finished. First inspections only, so a car that failed and came back is counted once; private and special plates, not taxis, livery or commercial plates. A rate appears only where at least 200 inspections stand behind it. “Every 2020 vehicle” is every 2020 model-year car, SUV and pickup inspected in the same window, all makes. This is the state’s record of test results, not a reliability score by itself. Source: New York State Department of Motor Vehicles, Vehicle Inspections (data.ny.gov, Open NY terms).
CT4 by model year
all years, side by side →Common questions about the 2020 CT4
Source: EPA, NHTSA and manufacturer press kitsDoes the 2020 Cadillac CT4 have any recalls?
NHTSA has posted 4 recall campaigns for the 2020 Cadillac CT4, 1 of them rated critical. The most serious on file is 25V148000, covering Power Train. Check your own VIN at nhtsa.gov/recalls; a recall applies to specific build ranges, not every car.
How safe is the 2020 Cadillac CT4?
NHTSA has not published a crash-test rating for the 2020 Cadillac CT4 yet. On the recall record WhichTrim grades it C (71/100), which measures open and severe recalls rather than crash protection.
What is the fuel economy of the 2020 Cadillac CT4?
Across the 6 EPA-rated configurations of the 2020 Cadillac CT4, the best EPA combined figure is 27 mpg. Figures are the EPA's own, per configuration, and every one is listed above.
What are the dimensions of the 2020 Cadillac CT4?
Transport Canada measured it at 187.4 in long, 71.7 in wide (body, without mirrors), 55.9 in tall, on a 109.4 in wheelbase. Curb weight: 3,422–3,732 lb depending on configuration. Those are its measurements of the North American versions; every figure is in the table above.
What do owners complain about on the 2020 Cadillac CT4?
Owners have filed 8 complaints with NHTSA about the 2020 Cadillac CT4, most often about engine, power train, service brakes. Complaints are unverified owner reports, so treat the pattern as a signal and the individual report as an anecdote.
How clean is the 2020 Cadillac CT4?
The EPA smog rating for the 2020 Cadillac CT4 is 6 out of 10. That score covers tailpipe pollutants other than greenhouse gases, and it only compares vehicles within the same model year. It is certified for all fifty states, so it can be registered new anywhere in the U.S. Its configurations were certified to different standards — California LEV-III ULEV50, Federal Tier 3 Bin 50 — which the table above lists per configuration.
Are there service bulletins for the 2020 Cadillac CT4?
The manufacturer has filed 888 service bulletins and related communications with NHTSA for the 2020 Cadillac CT4, most often covering equipment, electrical system, engine. The most recent is dated 2026-09-26. A bulletin is not a recall: it is the repair procedure a manufacturer sends its dealers for a condition it knows about, and the work is not automatically paid for. It is still worth knowing — if the symptom matches, quoting the bulletin number at the service desk can save a diagnosis. The document numbers and summaries are listed above.
How does the 2020 Cadillac CT4 do at state inspection?
In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2020 Cadillac CT4 failed the emissions check on 3.0% of first inspections — higher than the 2.2% for every 2020 model-year vehicle inspected; and the safety inspection on 1.5% (every 2020 vehicle: 1.6%). The figures are New York State DMV’s own inspection records, first inspections only, and the table above sets each one against every vehicle of the same model year.
What we hold, and what an empty row means
Paid vehicle-history reports will not tell you the difference between “nothing happened to this car” and “we never received that record” — both of the big two say as much in their own help pages. Most of what is on this page comes from complete federal registers, so we can tell you which is which, row by row.
| Data | Held | Source | What it covers — or what empty means |
|---|---|---|---|
| Fuel economy & configurations | 6 configurations | EPA certification records | Every configuration the EPA certified for sale, with its own test figures. |
| Emission certificates | 6 configurations | EPA emission certificates | Smog rating, standard and the sales area that decides where the car can be sold new. |
| Recalls | 4 | NHTSA recall campaigns | A complete federal register: every campaign covering this model year, with severity and advisory flags. |
| Owner complaints | 8 | NHTSA complaint database | Also complete, but unverified: these are reports owners filed, not findings. Counts scale with how many were sold. |
| Crash ratings | none | NHTSA NCAP | NHTSA has not tested this model year. Cars are selected for testing, so untested is not unsafe. |
| Service bulletins | 888 | NHTSA manufacturer communications | Everything the manufacturer told its dealers about a defect or malfunction, short of a recall. |
| Investigations | 1 | NHTSA Office of Defects Investigation | Open and closed defect investigations, with the agency's own narrative. |
| Driver-assist crash reports | none | NHTSA Standing General Order 2021-01 | No report has been filed. Only entities named in the order report, and only crashes they hear of — so this is also what an unequipped car, or a manufacturer without telematics, looks like. |
| Specifications filed with NHTSA | 8 fields | NHTSA vPIC, decoded from VIN patterns | What the manufacturer filed under the federal VIN rule — a configuration, not the full trim ladder. |
| Measured dimensions | 7 fields | Transport Canada, Canadian Vehicle Specifications | Length, width, height, wheelbase, track and curb weight, measured on the North American versions. |
| Trims, pricing & equipment | none | Manufacturer press kit | We have not transcribed a press kit for this model year yet. This is our gap, not the manufacturer's — the one row here where an empty cell means we are behind. |
Rebuilt nightly; this page was generated 2026-10-26. Every figure above is traceable to the source named beside it, and the JSON for this page carries the same values with their identifiers.
Sources & method
Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). The most serious recall counts in full and each further one counts 85% of the one before, because a vehicle sold in millions is recalled more often than a rare one without being more dangerous — and because a flat subtraction bottomed the scale out, scoring a vehicle with 22 recalls within a point of one with six. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Read it as what it counts: recall campaigns on the federal record, weighted by severity. The damping reduces the sales bias by roughly 40% but does not remove it: like our complaint counts, this is not normalized by how many were sold, so a best-seller still scores somewhat worse than an obscure model with the same real risk. NHTSA crash ratings, do-not-drive and park-outside advisories, and the crash, fire, injury and death counts in owner complaints are reported separately on every page and never blended into the letter — a vehicle can hold five stars and a poor letter at once, and where that happens we say so rather than leave you to notice. Because the scale subtracts from a clean sheet, a model year too new to have been recalled, complained about or bulletined scores full marks on an empty record; we label those grades provisional rather than present them as earned.
EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed nightly.