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Decoded VIN

3GTUUDED9TG169247

2026 GMC Sierra

Vehicle Summary

The 2026 GMC Sierra 1500 SLT is a robust pickup truck equipped with a 5.3-liter V8 engine (L84) and a 4WD drivetrain. It features a standard Anti-lock Braking System (ABS) and comprehensive airbag coverage, including curtain and side airbags for all rows. With a hydraulic brake system and a gross vehicle weight rating from 7,001 to 8,000 lbs, this truck is designed for both power and safety. Manufactured by General Motors in Silao, Mexico, the Sierra promises reliability and performance for any task.

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Complete Specifications

Make

GMC

Manufacturer Name

GENERAL MOTORS LLC

Model

Sierra

Model Year

2026

Plant City

SILAO

Series

1500

Trim

SLT

Vehicle Type

TRUCK

Plant Country

MEXICO

Plant State

GUANAJUATO

Body Class

Pickup

Gross Vehicle Weight Rating From

Class 2F: 7,001 - 8,000 lb (3,175 - 3,629 kg)

Gross Vehicle Weight Rating To

Class 2F: 7,001 - 8,000 lb (3,175 - 3,629 kg)

Drive Type

4WD/4-Wheel Drive/4x4

Brake System Type

Hydraulic

Engine Number of Cylinders

Displacement (CC)

5300.0

Displacement (CI)

323.42584370208

Displacement (L)

5.3

Engine Model

L84

Fuel Type - Primary

Gasoline

Other Engine Info

DI, DFM, ALUM, GEN 5, VAR 2

Seat Belt Type

Manual

Other Restraint System Info

AY0 - Active Manual Belts

Curtain Air Bag Locations

All Rows

Front Air Bag Locations

1st Row (Driver and Passenger)

Side Air Bag Locations

1st Row (Driver and Passenger)

Anti-lock Braking System (ABS)

Standard

Common Issues for This Vehicle

Brake fluid leaks

Hydraulic brake systems can experience leaks due to worn seals or damaged brake lines, leading to reduced braking efficiency.

Warped brake rotors

Over time, rotors can warp due to excessive heat or stress, causing vibrations or pulsations when braking.

Carbon build-up

Direct Injection (DI) engines like the L84 can suffer from carbon build-up on intake valves, potentially affecting performance and fuel economy.

Oil consumption

Some users report higher than expected oil consumption in engines similar to the L84, which may require more frequent oil checks and changes.

Active fuel management issues

Dynamic Fuel Management (DFM) systems can sometimes have issues with switching between cylinders, which can affect performance and fuel efficiency.

Timing chain wear

Over time, the timing chain in the L84 engine may experience wear, leading to potential timing issues or failure.

Cooling system problems

Aluminum engines, such as the L84, can be sensitive to cooling system issues, which might lead to overheating if not properly maintained.

Engine misfires

Misfires can be caused by a variety of issues, including ignition system faults, fuel delivery problems, or sensor malfunctions, and may occur in V8 engines like the L84.

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