How to decode a 2018 Chevrolet Impala VIN

Characters 1-3 of a 2018 Chevrolet Impala VIN

World Manufacturer Identifier (WMI) codes are unique sequences used to identify the manufacturer of a vehicle globally. For the 2018 Chevrolet Impala, the WMI codes “1G1” and “2G1” denote General Motors LLC, based in Warren, Michigan, United States, as the manufacturer. These codes signify that the vehicle is a passenger car produced by General Motors. The model years covered for these identifiers range, indicating the Chevrolet Impala’s continued production and relevance in the automotive market. WMIs are integral in distinguishing vehicle origins, manufacturers, and specific attributes across the automotive industry.

List of WMI Codes for a 2018 Chevrolet Impala

WMI: 2G1

Model Years Covered: 1982, 1984, 2000-2020
Example VIN: 2G11X5S30J9103942
Manufacturer Name: General Motors LLC
Vehicle Type: Passenger Car
City: Warren
State or Province: Michigan
Country: United States WMI: 1G1
Model Years Covered: 1981, 1984-1985, 2014-2020
Example VIN: 1G11X5S30JU115513
Manufacturer Name: General Motors LLC
Vehicle Type: Passenger Car
City: Warren
State or Province: Michigan
Country: United States

Characters 4-8 are the Vehicle Descriptor Section (VDS) of a 2018 Chevrolet Impala VIN

These characters correspond to components like:

Engine type
Transmission
Model or trim
Body style
Gross vehicle weight range

Below find the known vehicle descriptor codes for a 2018 Chevrolet Impala:

Known VDS for a 2018 Chevrolet Impala
1X5S3	1X5SA	105S3	1Z5SA	125S3	1Z5S3	105SA

Auto manufacturers have some discretion to decide how they want to code this section, but its contents and decoded results are generally consistent.

Character 9 is the “check digit” in a 2018 Chevrolet Impala VIN.

Based on a formula developed by the US Department of Transportation, it helps reduce fraud by ensuring the validity of the VIN.

10th Character in the 2018 Chevrolet Impala VIN — Year Code

Year Code	Year
J	2018

11th Character in the 2018 Chevrolet Impala VIN — Plant Code(s)

Known 2018 Chevrolet Impala Assembly Factory VIN Code(s)

Plant Code	Plant City	Plant State	Plant Country	Plant Company Name	Example VIN
9	Oshawa #1	Ontario	Canada	Gmna	2G11X5S30J9103942
U	Detroit Hamtramck	Michigan	United States	Gmna	1G11X5S30JU115513

VIN Characters 12 - 17 of a 2018 Chevrolet Impala

The final 6 characters in a 2018 Chevrolet Impala’s 17-digit VIN are its serial number, which will be unique to every vehicle.

Check your Chevrolet Impala’s VIN below:

How to find a 2018 Chevrolet Impala’s VIN?

Locating the VIN number on your 2018 Chevrolet Impala is key for identification. Here’s how to find it:

Look at the dashboard on the driver’s side of your 2018 Chevrolet Impala. The VIN can typically be seen through the windshield on a small metal or plastic plate.
Open the driver’s side door and inspect the door post (where the door latches when it is closed). It’s common for the VIN to be on a sticker or plate in this location.
Check under the hood. The VIN might also be stamped on the front of the engine block.
Examine the rear wheel well. Sometimes the VIN is located above the tire.
Look in the trunk. The VIN could be placed under the spare tire or on the trunk lid.
Review your vehicle’s title, registration, or insurance papers, which will list the VIN of your 2018 Chevrolet Impala.

What info can a 2018 Chevrolet Impala VIN reveal?

Model Year: The VIN reveals the vehicle’s model year as being 2018, providing insights into the age and potential market value of the vehicle.
Body Class and Doors: This vehicle is identified as a sedan/saloon with four doors, offering detailed insights into the vehicle’s design and structure.
Engine Type and Fuel Efficiency: The vehicle is equipped with a gasoline-powered engine, and it also has an optional ethanol (E85) fuel type, highlighting the flexibility in fuel choices. The engine is a 3.6L V6 designed by GM, indicating performance capabilities and manufacturer design philosophies.
Safety Features: The vehicle comes with a comprehensive suite of safety features, including an anti-lock braking system (ABS), curtain airbags for all rows, daytime running lights, and electronic stability control, emphasizing the priority placed on occupant safety.
Driver Assistance Technologies: Advanced technologies like adaptive cruise control, automatic crash notification, and blind spot warning are either standard or optional, reflecting the vehicle’s incorporation of modern safety and convenience features aimed at enhancing the driving experience.
Transmission and Drive Type: It is equipped with a 6-speed automatic transmission and front-wheel drive, providing details on the vehicle’s performance characteristics and handling dynamics.
Interior Configuration: The sedan has two seat rows and a total of five seats, offering ample passenger accommodation and ease of access.
Additional Features: Standard features include keyless ignition and a backup camera, contributing to the vehicle’s convenience and safety factors.

Don’t have your 2018 Chevrolet Impala’s VIN handy? Try our license plate lookup instead!

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Sample VIN Decode Report for a 2018 Chevrolet Impala

Vehicle Spec	Value
Active Safety System Note	Rear Park Assist: Standard
Adaptive Cruise Control (ACC)	Optional
Anti-lock Braking System (ABS)	Standard
Auto-Reverse System for Windows and Sunroofs	Standard
Automatic Crash Notification (ACN) / Advanced Automatic Crash Notification (AACN)	Standard
Axles	2
Backup Camera	Standard
Base Price ($)	36620
Blind Spot Warning (BSW)	Standard
Body Class	Sedan/Saloon
Curtain Air Bag Locations	All Rows
Daytime Running Light (DRL)	Standard
Displacement (CC)	3600.0
Displacement (CI)	219.68547874103
Displacement (L)	3.6
Doors	4
Drive Type	FWD/Front-Wheel Drive
Dynamic Brake Support (DBS)	Standard
Electronic Stability Control (ESC)	Standard
Engine Manufacturer	GM
Engine Model	LFX - Spark Ignited Direct injection, VVT, E85 MAX, ALUM
Engine Number of Cylinders	6
Forward Collision Warning (FCW)	Optional
Front Air Bag Locations	1st Row (Driver and Passenger)
Fuel Type - Primary	Gasoline
Fuel Type - Secondary	Ethanol (E85)
Gross Vehicle Weight Rating From	Class 1: 6,000 lb or less (2,722 kg or less)
Gross Vehicle Weight Rating To	Class 1: 6,000 lb or less (2,722 kg or less)
Keyless Ignition	Standard
Knee Air Bag Locations	1st Row (Driver and Passenger)
Lane Departure Warning (LDW)	Optional
Model	Impala
Model Year	2018
Number of Seat Rows	2
Number of Seats	5
Number of Wheels	4
Parking Assist	Standard
Plant City	Detroit Hamtramck
Plant Company Name	GMNA
Plant Country	United States
Plant State	Michigan
Seat Belt Type	Manual
Semiautomatic Headlamp Beam Switching	Standard
Series	Premier (2LZ)
Side Air Bag Locations	1st and 2nd Rows
Steering Location	Left-Hand Drive (LHD)
Tire Pressure Monitoring System (TPMS) Type	Direct
Top Speed (MPH)	155
Traction Control	Standard
Transmission Speeds	6
Transmission Style	Automatic
Valve Train Design	Dual Overhead Cam (DOHC)
Vehicle Descriptor	1G1125S3*JU
Vehicle Type	Passenger Car
Wheel Base (inches) From	111.7
Wheel Size Front (inches)	19
Wheel Size Rear (inches)	19
Windows	4
Sample_VIN	1G1125S30JU103604