History of the exact car
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2021 Cadillac CT4 Premium Luxury specifications
Build 1G6DB5RK-M · 2L 4cyl · Rear-wheel drive · Sedan
Explore the specifications recorded for VIN pattern 1G6DB5RK-M. Start here to understand this version, then check the full VIN for an individual car.
NHTSA vPIC decode · Pattern-level specifications
- Decoded Sep 9, 2026
- 866 known VINs
- 19 listings reported active
- Engine
- 2L 4cyl In-Line
- Transmission
- Automatic
- Drive
- Rear-wheel drive
- Body
- Sedan, 4-door
- Seats
- 5
- Weight class
- Class 1
- Median asking price
- $26,899
The essentials, explained
Engine, transmission & body specifications
As filed by Cadillac with NHTSA for this VIN pattern. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.
Engine
- Displacement
- 2 L
- Cylinders
- 4
- Configuration
- In-Line
- Engine model
- LSY
- Valve train
- Dual Overhead Cam (DOHC)
- Turbocharged
- Yes
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Rear-wheel drive
- Transmission
- Automatic
- Forward speeds
- 8
Body & chassis
- Body class
- Sedan/Saloon
- NHTSA body type
- PASSENGER CAR
- Doors
- 4
- Seats
- 5
- Seat rows
- 2
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 1
- GVWR
- 6,000 lb or less
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
Driver assistance in the recorded decode
- Forward collision warning Standard
- Crash imminent braking Optional
- Lane departure warning Optional
- Lane keeping assistance Optional
- Adaptive cruise control Optional
- Blind spot warning Standard
Systems the filing does not record are not listed above. Check the window sticker of the exact car before you rely on any single feature.
The market for this VIN pattern
What are sellers asking?
Asking prices from dealer listings associated with this VIN pattern in the United States. Mileage, condition, options and location can change the value of an individual vehicle.
$26,899 median asking price · 26 listings · as of Sep 6, 2026
Median $26,899
2nd percentile $16,637 98th percentile $33,713
Put the model year in context
Compare asking prices by model year
Explore 6 model years with VIN prefix 1G6DB5RK. These are different vehicles: price differences also reflect mileage, condition, equipment and the listings available. They are not a depreciation forecast.
Median asking prices · bars begin at $0
Highlighted: 2021, the model year on this page. Prices and update dates are specific to each linked year.
- 2020 Premium Luxury 2L 4cyl Sedan · 489 known VINs code L $24,995
-
2021 You are here code M $26,899
- 2022 Premium Luxury 2L 4cyl Sedan · 606 known VINs code N $27,932
- 2023 Premium Luxury 2L 4cyl Sedan · 1,092 known VINs code P $29,999
- 2024 Premium Luxury 2L 4cyl Sedan · 645 known VINs code R $32,116
- 2025 Premium Luxury 2L 4cyl Sedan · 1,154 known VINs code S $39,140
How this VIN pattern is read
A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.
VIN positions 1 through 8 read 1G6DB5RK and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 describe the check digit, assembly plant and production sequence; they are not part of this pattern.
| Positions | Characters | What they encode |
|---|---|---|
| 1–3 | 1G6 | GENERAL MOTORS LLC · World manufacturer identifier |
| 4–8 | DB5RK | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | M | Model year — 2021 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
From a version to your vehicle
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Enter the full VIN — the 17 characters on the windshield or title — to open the vehicle’s page.
Explore actual vehicles
866 known VINs for this pattern
Every VIN we have decoded to 1G6DB5RK-M is associated with this pattern in our records. Shared specifications do not mean shared history, condition or installed options.
- 866 Known VINs
- 19 Listings reported active
- 26 Priced listings
- $26,899 Median asking
Vehicles of this build
A fixed sample of 3 known vehicles associated with this pattern — each with its own history page. The sample refreshes quarterly, not nightly, so it stays put between visits.
Browse all 16 VIN record groups
- Group 0 61 VINs
- Group 1 46 VINs
- Group 2 62 VINs
- Group 3 49 VINs
- Group 4 46 VINs
- Group 5 42 VINs
- Group 6 51 VINs
- Group 7 59 VINs
- Group 8 61 VINs
- Group 9 62 VINs
- Group A 50 VINs
- Group B 56 VINs
- Group C 50 VINs
- Group D 65 VINs
- Group E 54 VINs
- Group F 52 VINs
Groups use a stable internal sorting key. Their labels are not VIN characters, locations or model variants.
Keep going
Useful answers, without the guesswork
2021 Cadillac CT4: specification questions
What engine code is recorded for 1G6DB5RK-M?
The recorded engine model is LSY. This is pattern-level data; confirm the installed engine on a vehicle that may have been modified.
Is this an original window sticker?
No. This page summarizes decoded VIN-pattern specifications. An original sticker or build record is needed to verify the optional equipment of a particular car.
Are the known VINs a production total?
No. These are VINs observed in our records. The count does not establish total production or rarity.
Does a missing specification mean the feature is absent?
No. Missing fields mean that a value is not recorded in this decode. Check the individual vehicle and its manufacturer documentation.
Where this data comes from
Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.
Prices are asking prices from 26 live dealer listings decoded to this build , last updated September 6, 2026 . They are what sellers ask, not what buyers paid.
Vehicle counts come from the 866 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.
About the NHTSA vPIC data source ↗
Pattern decode updated September 9, 2026.