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2021 GMC Sierra

United States Diesel 4WD PickupUpdated Aug 24, 2026

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Specifications

Interior

Equipment

Instrument Cluster

Trip Computer: Yes
Head-up Display (HUD): Optional
Speedometer: Analogue
Tachometer: Analogue
Fuel Gauge: Analogue
Voltmeter: Analogue
Oil Pressure: Analogue
Coolant Temperature: Analogue
Odometer Limit: 1,000,000 km/miles
Compass: Yes

Instrument Cluster › Trip Computer

Display: 4.2 - 8"

Instrument Cluster › Trip Computer › Display

Type: Colour
Shape: Square

Climate Control

Climate Control: Automatic
Number of Climate Zones: 2
Air Condition: Yes
Pollen Filter: Yes
Outside Temperature Indicator: Yes
Controls: Buttons
Rotary Dials

Connectivity

Radio: AM
FM
XM
App-Connect: Android Auto
Apple CarPlay (Wired | Wireless)
Bluetooth: Phone
Audio
WiFi: Yes

Connectivity › Radio

HD Radio: Optional

Connectivity › Media Format

Memory Card Reader: Optional

Connectivity › Media Format › Memory Card Reader

SD: Optional

Connectivity › Media Inputs

AUX: Front
USB: USB-C

Connectivity › Media Inputs › USB

Placement: Front
Rear
Armrest Hatch/Mid-console: Optional
Number of Ports: 4 - 6 pcs

Displays

Center Display: 7 - 8"
Center Display Controls: Touchscreen

Displays › Center Display

Type: Colour

Speakers

Total Number of Speakers: 6 - 7 pcs
Subwoofer: Optional

Rear-view Mirror

Adjustments: Mechanical

Interior Storage › Storage Compartments

Glove Compartment: Yes
Armrest Hatch: Front
Under Seats: Optional
Door: Driver Side
Passenger Side
Rear

Interior Storage › Storage Compartments › Under Seats

Rear: Optional

Interior Storage

Cup Holders: Yes

Interior Storage › Cup Holders

Front: 2
Rear: 2

Interior Storage › Cup Holders › Front

Placement: Middle Console

Other Equipment

Make-up Mirror: Driver Side
Passenger Side
Clock: Yes
12V Outlet: Front
Rear
110V Outlet: Front
Carpets: Front

Other Equipment › Clock

Digital: Center Display

Other Equipment › Carpets

Material: Rubber
Colour: Black

Seats

Front Seats › Adjustments, Driver

Seat Depth: Powered
Seat Height: Powered
Cushion Tilt: Powered
Backrest Angle: Powered
Lumbar Support: Powered
Headrest, Height: Manual

Front Seats › Adjustments, Passenger

Seat Depth: Yes
Seat Height: Yes
Cushion Tilt: Optional
Backrest Angle: Optional
Lumbar Support: Optional
Headrest, Height: Manual

Front Seats

Power Seat, Driver: Yes
Power Seat, Passenger: Optional
Heated Seats: Driver
Passenger
Armrest: Middle
Ventilated Seats: Optional

Front Seats › Heated Seats

Areas: Cushion
Backrest

Front Seats › Ventilated Seats

Driver: Optional
Passenger: Optional

Second Seat Row

Armrest: Yes
Collapsible: Manual
Number of Seats: 3
Type of Seat: Adult

Second Seat Row › Collapsible

Backrest Release: On Top of Backrest
Split Fold Ratio: 60/40

Second Seat Row › Headrests

Outer Seats: Height Adjustment
Centre Seat: Yes

Colour & Material

Stitching Colour: Black

Features

Safety & Security