model year

2023 GMC Sierra 2WD configuration 45778

Official US catalog configuration for the 2023 GMC Sierra 2WD: 5.3L 8-cylinder Regular Gasoline SIDI; with Sport Mode, Automatic 10-spd, Rear-Wheel Drive.

Claim-level evidence reviewed Reviewed 8/27/2026

answer

Exact catalog configuration

FuelEconomy.gov identifies this as configuration 45778 for the 2023 GMC Sierra 2WD. The catalog row specifies 5.3L 8-cylinder Regular Gasoline SIDI; with Sport Mode, Automatic 10-spd, Rear-Wheel Drive, and Regular Gasoline. This is a configuration record, not a statement that every vehicle sold under the same model name has this powertrain.

make
GMC
model
Sierra 2WD
engine
5.3L 8-cylinder Regular Gasoline SIDI; with Sport Mode
source
FuelEconomy.gov vehicles.csv
fuelType
Regular Gasoline
cylinders
8
modelYear
2,023
drivetrain
Rear-Wheel Drive

SOURCES

applicability

Engine, transmission, and generation fields

Engine: 5.3L 8-cylinder Regular Gasoline SIDI; with Sport Mode. Transmission: Automatic 10-spd. Drive: Rear-Wheel Drive. Fuel: Regular Gasoline. Vehicle class: not specified. Generation label: Catalog span 2020–2026. The generation basis is catalog_span, which means contiguous catalog coverage and not an asserted OEM chassis-generation boundary.

make
GMC
model
Sierra 2WD
engine
5.3L 8-cylinder Regular Gasoline SIDI; with Sport Mode
source
FuelEconomy.gov vehicles.csv
fuelType
Regular Gasoline
cylinders
8
modelYear
2,023
drivetrain
Rear-Wheel Drive

diagnosis

How to use this configuration

Match the VIN, emissions label, engine identifier, transmission, drivetrain, and build information before ordering a part or applying a diagnostic procedure. FuelEconomy.gov configuration IDs describe catalog variants; they do not prove the equipment installed on an individual vehicle.

individualVehicleClaim
No
vinVerificationRequired
Yes

methodology

Source and update method

This page is generated from one exact row in the official FuelEconomy.gov downloadable vehicle dataset. Car Trouble Lab stores the source vehicle ID and row digest, and republishes a new reviewed snapshot when the source facts change.

source
FuelEconomy.gov
rowSha256
a9bff10d993d1b0ba447a62ec0b04c4d70028338b2ebe08e37bc5e7ec433140f
sourceVehicleId
45778