2003 GMC Sierra 1500HD

4.9

2003 GMC Sierra 1500HD inside of driver's side open door, window open

2003 GMC Sierra 1500HD drivers side headlight

2003 GMC Sierra 1500HD driver's side inside window controls

2003 GMC Sierra 1500HD passenger side taillight

2003 GMC Sierra 1500HD drivers side door handle

2003 GMC Sierra 1500HD front seats from drivers side

2003 GMC Sierra 1500HD rear seats from drivers side

2003 GMC Sierra 1500HD closeup of radio head unit

2003 GMC Sierra 1500HD speedometer/tachometer

2003 GMC Sierra 1500HD front center divider

2003 GMC Sierra 1500HD centered wide dash shot

2003 GMC Sierra 1500HD courtesy lamps/ceiling controls

2003 GMC Sierra 1500HD seat adjustment controllers

2003 GMC Sierra 1500HD front angle medium view

2003 GMC Sierra 1500HD front angle view, low wide perspective

Starting MSRP

$31,908

Key Features

Standard Powertrain

300 hp, 6.0-Liter, V8

Standard Seating

6 Passengers

Standard Drivetrain

RWD

Max. Towing

10,300 lbs

NHTSA Safety Rating

n/a

2003 GMC Sierra 1500HD Trim Configurations

Find a Used GMC Sierra 1500HD

2003 GMC Sierra 1500HD SLT

10 Service History Records

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2003 GMC Sierra 1500HD Safety

NHTSA Crash-Test Ratings

NHTSA's 5-Star Safety Ratings program evaluates how vehicles perform in crash tests. NHTSA conducts frontal, side and rollover tests because these types account for the majority of crashes on America's roadways.

Frontal Crash Rating

Overall

n/a

Front Driver Side

n/a

Front Passenger Side

8/5

Side Crash Rating

Overall

n/a

Combined Side Barrier & Pole

Front Seat

n/a

Rear Seat

n/a

Side Barrier

Overall

n/a

Driver

8/5

Rear Passenger

8/5

Side Pole

Overall

n/a

Rollover Rating

Overall

8/5

IIHS Crash-Test Ratings

IIHS tests evaluate two aspects of safety: crashworthiness — how well a vehicle protects its occupants in a crash — and crash avoidance and mitigation — technology that can prevent a crash or lessen its severity.

Crashworthiness
Small Overlap Front - Driver Side	n/a
Small Overlap Front - Passenger Side	n/a
Moderate Overlap Front	n/a
Side Impact	n/a
Roof Strength	n/a
Head Restraints and Seats	Poor

Crash Avoidance & Mitigation

Front Crash Prevention

n/a

Headlights

n/a

Seat Belts & Child Restraints

Latch

n/a

Ratings only apply to the model tested. Date of manufacture and optional safety equipment can affect results. For full details visit iihs.org.

2003 GMC Sierra 1500HD Reviews

Consumer Reviews

Overall Rating

4.9

8 Reviews

5 Star

88%

4 Star

13%

3 Star

2 Star

1 Star

1 - 5 of 8 reviews

Write a Review

5/5

By grump on Sep 18, 2025

great truck

Looks good 125k miles and runs fine with regular service and a few minor problems

5/5

By Carlos on Sep 02, 2020

Love my truck it’s a beast

Durable truck it’s still kicks butt

Have a little wear and tear but truck is great

It’s in excellent condition take care of her.

Put a performance chip and it runs like a champ better than a new one

5/5

By texasquadrasteer555 on Aug 15, 2024

Great truck!

I bought this truck used with the Quadrasteer option. The truck was also fully loaded when sold as new. It has been very reliable with few mechanical issues.

5/5

By DadK73 on Jul 23, 2024

It keeps on going, and going...

I love this truck since day 1 and still do. Almost 400,000 miles and 21 years and only had to be towed 1 time., Its comfortable and pretty quick for a 6000 pound truck. Gas mileage is what it is but this 2003 is a lot more reliable than the new ones. I'll take reliability over gas mileage any day.