Search Consumer Guide Auto and the Web
 

2003 GMC Sierra 1500 Full Review
Date Published: 4/08/08
2003 GMC Sierra 1500 Review
Expanded availability of 4-wheel steering and a DVD entertainment option highlight 2003 additions to these full-size pickups. Sierra is a design cousin of Chevrolet's Silverado, differing mainly in trim. This report covers the half-ton 1500-series Sierra. It comes in regular-cab, extended-cab, and Crew Cab styles. Extended cabs have back-hinged rear doors that don't open independently of the front doors. Crew Cabs have a longer cab and four conventional side doors. Both styles include a 3-passenger rear bench seat. Regular and extended cabs offer Wideside cargo beds of 6.5 and 8.1 ft, or a flare-fender Sportside box of 6.5 ft. Crew Cabs use only the short Wideside.

Sierra offers base, Work, SLE, and SLT models, plus the flagship Sierra Denali. The Sierra Denali is a luxury/performance extended cab with all-wheel drive but no low-range gearing. Other Sierras come with rear-wheel drive with optional traction control or with one of two 4WD systems. The base 4WD setup must be disengaged on dry pavement. Optional Autotrac 4WD can be left engaged on dry pavement. Both systems include low-range gearing. GM's Quadrasteer 4-wheel steering is standard on Sierra Denali and now is available on other extended-cab Sierras and Crew Cabs. At low speeds, it turns the rear wheels opposite the fronts for a tighter turning radius. At higher speeds, it turns them in the same direction to aid stability. A special flare-fender short box is included with Quadrasteer.

A 4.3-liter V6 is the base engine for most regular cabs. A 4.8-liter V8 is standard on extended-cab short beds and the SLE regular cab and is optional on other regular cabs. A 5.3-liter V8 is standard on extended-cab long beds and optional on regular cabs and extended-cab short beds. Crew Cabs and Denali use a 6.0-liter V8 with 300 and 325 hp, respectively. Crew Cabs and extendeds include automatic transmission with GM's Tow/Haul mode. Regular cabs offer automatic or manual transmission. All Sierras come with antilock 4-wheel disc brakes.

For 2003, all models get minor exterior styling changes and revamped dashboard and seats. Among new options are premium Bose audio and XM satellite radio. Rear-seat DVD entertainment is a new Crew Cab option. OnStar assistance is standard on Denali, a mandatory option on SLTs, and available on SLEs. Sierra's performance and accommodations mirror those of similarly equipped Silverados.
Competition
With the advent of crossover vehicles, this segment has become less defined. Once the domain of work-related heavy-duty pickups, buyers are now demanding that their full-size trucks do double duty. Our Best Buys remain Chevy Silverado, Ford F-150, and GMC Sierra. These trucks offer a wide range of powertrain combinations, plenty of luxury accommodations, and ample towing power--though the GM twins are the only ones to offer full-time 4WD and convenient 4-wheel steering.

Big-rig-styled Dodge Ram matches the new Ford and GM models in most aspects but can't match their ride comfort or civility. We also like the expensive Toyota Tundra. What it lacks in brute strength, it more than makes up for with refined road manners.
News
A redesign isn't due until model-year 2008, but GM's full-size trucks will make news in the next few years. For starters, a gasoline/electric powertrain option is apparently still on for calendar 2004. Similar to a prototype system seen by reporters, it doesn't actually drive the vehicle in the way of hybrid-power cars. Instead, a starter/generator temporarily shuts off the engine on coming to a stop, then provides near-instantaneous restarts on pressing the accelerator; a 42-volt electrical system supplies the juice for restarting and to keep accessories powered.

Another near-term prospect is GM's newly developed "Displacement on Demand" V8, which runs on four or eight cylinders depending on power needs. It's the same idea as Cadillac's unsuccessful "V-8-6-4" of the early 1980s, but promises much smoother operation and far greater reliability thanks to a new cylinder-shutdown system and an engine computer with vastly greater processing power, plus integrated electronic transmission controls and "drive-by-wire" throttle. GM hopes to sell about 150,000 full-size DOD trucks starting in 2004, going to around 1.5 million per year by 2007. It's another reply to critics demanding improved fuel economy and reduced emissions in all big trucks. Of course, those problems exist largely because full-size trucks are so popular.

Speaking of which, Sierra still sells at 30-40 percent of Silverado's volume, largely because there are fewer GMC dealers and Sierras tend to cost a little more. But those extra orders are psychologically important to GM in its perennial battle with Ford's F-150 for outright sales supremacy, one reason the company is trying to make all GMC products more distinctive and saleable in their own right. That strategy seems to be paying off for Sierra, as year-to-year sales rose 3.6 percent in the first nine months of 2002 after an 11.2 percent jump in calendar '01.
2003 GMC Sierra 1500 Road Test
Pros Cons
Optional full-time 4WD Fuel economy
Towing/Hauling (V8s) Ride
Instruments/controls Rear-seat entry/exit (extended cab)
Consumer Guide® Road Test Ratings
Acceleration

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
4 5 6 7 4.7

The V6 doesn't cut it, but V8s have good power for most situations. Automatic transmission is alert and fuss-free, and its Tow/Haul mode optimizes performance with heavy loads. Available traction control and all-surface 4WD are class exclusives with great appeal. Denali's muscular 325-hp V8 delivers quick standing starts, swift passing.
Fuel Economy

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
3 2 2 2 2.2

Test 4WD extendeds with 5.3 V8 and automatic transmission averaged 13.7 mpg. Test 6.0 Crew Cab averaged just 7.2 mpg in exclusively city driving; it should do better with more highway use. Test Denalis averaged 13.3-14.5 mpg in city/highway mix. All engines use regular-grade fuel.
Ride Quality

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
3 4 4 4 3.7

Generally softer than Ford F-150, though still stiff and bouncy on uneven surfaces. As with any pickup, the tail will stutter some over bumps with an empty bed.
Steering/Handling/Braking

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
3 3 3 6 3.3

All models show fine overall balance, though steering feels rather lifeless. Quadrasteer gives carlike maneuvering ease, especially in tight spots, and enhances high-speed tracking and towing stability.
Quietness

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
5 5 5 5 4.5

Road, wind, and engine noise are unobjectionable and slightly lower than in comparable F-150s.
Controls

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
7 7 7 7 6.8

Clear instruments. Controls conveniently placed, movement pleasingly smooth. Windshield wipers operate via turn-signal lever; a separate control would be better. Only GM furnishes an engine-hour meter to supplement the usual odometer.
Room/Comfort/Driver Seating (front)

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
7 9 9 9 8.5

Tall and wide, with lots of seat travel and backrest recline even in regular cabs. Supportive seats have integrated safety belts that are always comfortably positioned and easy to reach.
Room/Comfort (rear)

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
0 5 5 5 4.4

Good leg clearance and comfortably angled seatback make GM's extended cabs the most accommodating among full-size pickups. Crew Cabs are even more spacious and comfortable, a good match for F-150 SuperCrew and better than Dodge Ram Quad Cab.
Cargo Room

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
1 5 5 5 4.8

Extended and crew cabs have ample inside storage with rear bench seat folded up, but lack bins, nets, or protective flooring. Behind-seat space in regular cab beats Ford and Toyota, trails Dodge.
Value within Class

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
7 9 10 7 6.9

Sierra and Silverado lead the big-pickup field in 4WD sophistication, traction-control convenience, and now 4-wheel steering. They also offer the best extended-cab rear-seat accommodations, and their crew cabs are as hospitable as any. Factor in performance and pricing, and these are easy Best Buys.
Total Score

Base reg. cab 2WD, V6 Base ext. cab 2WD, 4.8 V8 SLT ext. cab 4WD, 5.3 V8 Sierra Denali Class Average
40 54 56 57 49.8
Scores for all Large Pickup Trucks

Low Score
38
Average Score
49
High Score
61
2003 GMC Sierra 1500 Prices & Equipment
Model Prices
Prices Updated: 06/04/2003
Trim Name Retail Price Dealer Invoice Destination Charge
2WD V6 Work regular cab, long bed $19,150 $17,331 $815
2WD V6 Base regular cab, short bed $19,362 $17,523 $815
2WD V6 Base regular cab, long bed $19,662 $17,794 $815
4WD 4.8 V8 Work regular cab, long bed $24,040 $21,756 $815
4WD 4.8 V8 Base regular cab, short bed $24,252 $21,948 $815
4WD 4.8 V8 Base regular cab, long bed $24,552 $22,220 $815
2WD V6 Work extended cab, short bed $23,600 $20,650 $815
2WD 4.8 V8 Base extended cab, short bed $24,902 $21,789 $815
2WD 5.3 V8 Base extended cab, long bed $26,002 $22,752 $815
4WD 4.8 V8 Base extended cab, short bed $27,907 $24,419 $815
4WD 5.3 V8 Base extended cab, long bed $29,007 $25,381 $815
2WD 4.8 V8 SLE regular cab, short bed $23,740 $20,773 $815
2WD 4.8 V8 SLE regular cab, long bed $24,040 $21,035 $815
4WD 4.8 V8 SLE regular cab, short bed $28,090 $24,579 $815
4WD 4.8 V8 SLE regular cab, long bed $28,390 $24,841 $815
2WD 4.8 V8 SLE extended cab, short bed $27,547 $24,104 $815
2WD 5.3 V8 SLE extended cab, long bed $28,647 $25,066 $815
2WD 4.8 V8 SLT extended cab, short bed $27,547 $24,104 $815
2WD 5.3 V8 SLT extended cab, long bed $28,647 $25,066 $815
4WD 4.8 V8 SLE extended cab, short bed $30,652 $26,821 $815
4WD 5.3 V8 SLE extended cab, long bed $31,752 $27,783 $815
4WD 4.8 V8 SLT extended cab, short bed $30,652 $26,821 $815
4WD 5.3 V8 SLT extended cab, long bed $31,752 $27,783 $815
2WD 6.0 V8 SLE Crew Cab, short bed $31,093 $27,206 $815
2WD 6.0 V8 SLT Crew Cab, short bed $31,093 $27,206 $815
4WD 6.0 V8 SLE Crew Cab, short bed $34,505 $30,192 $815
4WD 6.0 V8 SLT Crew Cab, short bed $34,505 $30,192 $815
AWD 6.0 V8 Denali extended cab, short bed $44,255 $38,723 $815
Price note: SLT models require a Marketing Option Pkg.
Pricing Key: Retail prices listed with each report are set by the vehicle's manufacturer. These figures appear on each car's federally mandated window sticker. Most price lists also include dealer-invoice prices. Dealer-invoice prices are what the dealer pays the manufacturer for the car and its factory-installed options. The destination charge is not included in the suggested-retail or dealer-invoice price and must be added to the cost of the vehicle. Car companies change prices frequently throughout the year. If the prices published do not match those on the vehicle's window sticker, the manufacturer has probably altered the price recently.
NA = price note available, NC = no charge.
Rebates and Incentives
There are no rebates or incentives at this time.
Consumer Guide®'s Rebates and Incentives represent a summary of national manufacturer programs available. Regional restrictions may apply, and offerings may vary by model. For a complete list of Rebate & Incentive programs click here.
Standard Equipment
Work/Base
Powertrain
4.3-liter V6 engine (regular cab, Work extended cab), 4.8-liter V8 engine (Base extended-cab short bed), 5.3-liter V8 engine (extended-cab long bed), 5-speed manual transmission (regular cab), 4-speed automatic transmission (extended cab).
Safety
Dual front airbags, antilock 4-wheel disc brakes, daytime running lights.
Comfort and Convenience Features
Air conditioning w/dual-zone manual climate controls, power steering, tilt steering wheel, cloth upholstery, front split bench seat, cupholders, folding rear seat (extended cab), rear-hinged rear doors (extended cab), AM/FM radio, digital clock, tachometer, engine-hour meter, passenger-side visor mirror, map light, cargo-box light, intermittent wipers, automatic headlights, vinyl floor covering (Work), carpeting (Base), floormats (Base).
Appearance and Miscellaneous
Theft-deterrent system, chrome front bumper, painted rear step bumper, Wideside body.
Special Purpose, Wheels and Tires
Front tow hooks (Base), full-size spare tire, P235/75R16 tires, 4WD models add: 4-wheel drive, 2-speed transfer case, 4.8-liter V8 engine (regular cab, extended-cab short bed), 5.3-liter V8 (extended-cab long bed), 4-speed automatic transmission, P245/75R16 tires.
SLE/SLT adds to Work/Base:
Powertrain
4.8-liter V8 engine (regular cab, extended-cab short bed), 5.3-liter V8 engine (extended-cab long bed), 6.0-liter V8 300-horsepower engine (Crew Cab).
Comfort and Convenience Features
Leather-wrapped steering wheel, cruise control, split folding rear seat (Crew Cab), front-hinged rear doors (Crew Cab), heated power mirrors, power windows, power door locks, remote keyless entry, AM/FM/CD player, automatic day/night rearview mirror, compass, outside-temperature indicator, rear defogger.
Appearance and Miscellaneous
Rear deep-tinted glass.
Special Purpose, Wheels and Tires
Chrome steel wheels, P255/70R16 tires (regular cab, extended cab), LT245/75R16E tires (Crew Cab), 4WD models add: 4-wheel drive, Autotrac transfer case, 2-speed transfer case, 4-speed automatic transmission, P245/75R16 tires (regular cab, extended cab).
Denali adds to SLE/SLT:
Powertrain
6.0-liter V8 325-horsepower engine, all-wheel drive, limited-slip differential.
Comfort and Convenience Features
4-wheel steering, OnStar System w/one-year service (roadside assistance, emergency services; other services available), dual-zone automatic climate controls, leather upholstery, heated front bucket seats, power front seats w/driver-seat memory, center console, mirror-mounted turn signals, driver-side automatic day/night mirror, passenger-side tilt-down back-up-aid mirror, AM/FM/cassette w/in-dash 6-disc CD changer, steering-wheel radio controls, rear radio controls and headphone jacks, illuminated visor mirrors, universal garage-door opener.
Appearance and Miscellaneous
Color-keyed bumpers, fog lights, tonneau cover, chrome tubular side steps, roof marker lights.
Special Purpose, Wheels and Tires
Tow-hitch platform, 8-lead trailer-wiring harness, ride-control suspension, P265/70R17 tires, polished alloy wheels.
Optional Equipment
Major Packages
Retail Price
Invoice Price
Work Truck Discount
Work regular cab (credit)
$-200
$-172
Work extended cab (credit)
$-700
$-602
Marketing Option Pkg. 1SD
SLT
$1,840
$1,582
SLT ordered w/bucket seats
$1,600
$1,376
OnStar System w/one-year service (roadside assistance, emergency services; other services available), dual-zone automatic climate controls, leather upholstery, 6-way power driver seat, steering-wheel radio controls, trip computer, fog lights.
4-Wheel Quadrasteer Steering Pkg.
SLE/SLT extended-cab short bed, Crew Cab
$4,495
$3,865
4-wheel steering, heavy-duty brakes, redesigned bed w/flared fenders. Requires ZX3 2-position manual-control suspension, Trailering Equipment Pkg., limited-slip differential, roof marker lights, heavy-duty alternator. 2WD requires traction control.
Professional Pkg. PRO
SLE/SLT extended-cab short bed
$2,457
$2,113
Front bucket seats, vinyl upholstery (SLE), center console w/storage, thermal electric warmer/cooler, rear under-seat storage, rubber floor covering, unique grille, bodyside moldings, wheel flares, bedliner, side steps, LT245/75R16C on/off-road white-letter tires, polished alloy wheels.
Exterior Appearance Pkg.
Base
$625
$538
Base w/Sportside body
$555
$477
Chrome grille surround and rear bumper, bodyside moldings (without Sportside), chrome steel wheels.
Snow Plow Prep Pkg.
4WD regular cab
$405
$348
4WD reg. cab w/Trailering Equipment
$285
$245
Larger front springs, heavy-duty automatic-transmission cooler, heavy-duty alternator, electrical supply/connections and mounting equipment, emergency lights, skid plates. NA w/dual-zone automatic climate controls. SLT requires dual-zone manual climate controls.
Z71 Off-Road Suspension Pkg.
4WD SLE
$300
$258
4WD SLE w/Trailering Equipment
$275
$237
Includes larger springs and shock absorbers, jounce bumpers, stabilizer bars, skid plates, high-capacity air cleaner. Requires P265/75R16 all-terrain tires or LT245/75R16 on/off-road tires.
PDL Off-Road Pkg.
4WD SLE extended cab
$1,005
$864
4WD SLT extended cab
$865
$744
4WD SLT extended cab w/Trailering Equipment Pkg.
$840
$722
4WD SLE extended cab w/Trailering Equipment Pkg.
$980
$843
Off-Road Suspension Pkg. plus fog lights (SLE), P265/75R16 all-terrain white-letter tires, bright alloy wheels.
Trailering Equipment Pkg.
regular cab, extended cab
$310
$267
Crew Cab
$215
$185
Trailer-hitch platform, 6-wire trailering harness, heavy-duty auxiliary transmission-oil cooler, high-capacity air cleaner. Requires 4.8-liter or 5.3-liter V8 engines and automatic transmission. Base, Work require Heavy Duty Handling/Trailering Suspension Pkg. NA w/Smooth Ride Suspension. Std. Denali.
Powertrain
4.3-liter V6 engine
4WD regular cab, SLE regular cab, 2WD Base/SLE extended-cab short bed (credit)
$-695
$-597
4.8-liter V8 engine
2WD Work/Base regular cab
$695
$598
extended-cab long bed (credit)
$-800
$-688
5.3-liter V8 engine
2WD Work/Base regular cab
$1,495
$1,286
4WD regular cab, SLE regular cab, extended-cab short bed
$800
$688
2WD regular cab requires automatic transmission. NA Work extended cab, Denali.
5-speed manual transmission
2WD regular cab
$0
$0
4WD regular cab (credit)
$-1,095
$-942
Requires 4.3-liter V6 engine or 4.8-liter V8 engine.
4-speed automatic transmission
2WD regular cab
$1,095
$942
Traction control
2WD
$225
$194
Requires automatic transmission, limited-slip differential. Base requires cruise control. Crew Cab requires 4-wheel Quadrasteer Steering Pkg. NA Work.
Limited-slip differential
Work, Base, SLE, SLT
$295
$254
Special axle ratio
SLE/SLT, Work/Base
$50
$43
NA Denali. Requires 4.8-liter or 5.3-liter V8 engine.
Comfort and Convenience Features
OnStar System
SLE
$695
$598
Includes one-year service (roadside assistance, emergency services; other services available). SLE requires steering-wheel radio controls.
Air conditioning delete
Work/Base regular cab (credit)
$-870
$-748
NA w/rear defogger.
Dual-zone automatic climate controls
SLE extended cab/Crew Cab
$195
$168
Dual-zone manual climate controls
SLT (credit)
$-195
$-168
Requires Snow Plow Prep Pkg.
Rear-seat entertainment system
Crew Cab
$1,295
$1,114
Includes DVD player, LCD screen, wireless headphones. SLE requires dual-zone automatic climate controls, bucket seats, optional radio.
AM/FM/CD player
Work, Base
$255
$219
AM/FM/cassette/CD player
SLE, SLT
$100
$86
SLE/SLT extended cab/Crew Cab w/bucket seats
$595
$512
Includes Bose sound system w/bucket seats.
AM/FM radio w/in-dash 6-disc CD changer
SLE, SLT
$795
$684
Includes Bose sound system. Requires bucket seats. NA regular cab.
Satellite radio
SLE, SLT, Denali
$325
$280
Requires monthly fee.
Steering-wheel radio controls
SLE
$125
$108
Includes trip computer.
Bucket seats
SLE/SLT extended cab
$870
$748
Crew Cab
$1,035
$890
Includes 6-way power driver seat, floor and overhead consoles, rear radio controls (Crew Cab). SLE requires AM/FM/cassette/CD player or AM/FM radio w/in-dash 6-disc CD changer.
Heated bucket seats
SLT extended cab
$1,260
$1,084
SLT Crew Cab
$1,425
$1,226
Includes driver-seat memory, 6-way power passenger seat, floor and overhead consoles, rear radio controls (Crew Cab).
6-way power driver seat
SLE
$240
$206
Vinyl upholstery
SLE extended cab
$0
$0
Work, Base (credit)
$-282
$-243
Work, Base require carpet delete. SLE requires Professional Pkg.
Power-folding mirrors
SLE, SLT
$183
$157
Includes turn signals, driver-side automatic day/night, passenger-side tilt-down back-up aid.
Heated power camper mirrors
SLE, SLT
$238
$205
Includes turn signals.
Rear defogger
Base
$175
$151
Cruise control
Work, Base
$240
$206
Power door locks
Work, Base
$162
$139
Carpeting
Work, SLT/SLE extended cab
$100
$86
Includes floormats. SLE, SLT require Professional Pkg.
Appearance and Miscellaneous
Sportside body
short bed
$795
$684
NA Work, Denali, Crew Cab, w/4-Wheel Quadrasteer Steering Pkg.
Pickup box top rail protectors
Denali, SLE/SLT, Work/Base
$119
$102
NA w/Sportside body.
Bed extender
Denali, SLE/SLT, Work/Base
$210
$181
NA w/Sportside body.
Soft tonneau cover
Denali, SLE/SLT, Work/Base
$280
$241
Hard tonneau cover
Denali, SLE/SLT, Work/Base
$680
$585
Chrome rear step bumper
Work, Base
$100
$86
Tubular side steps
regular cab
$389
$335
extended cab
$412
$354
Crew Cab
$435
$374
NA Denali.
Chrome tubular side steps
regular cab
$425
$366
extended cab
$450
$387
Crew Cab
$495
$426
Std. Denali.
Fog lights
SLE
$140
$120
Fender flares
4WD
$180
$155
NA Sportside, Denali.
High visibility extended mirrors
Work, Base
$70
$60
Deep-tinted glass
Base regular cab
$50
$43
Work/Base extended cab
$107
$92
Two-tone paint
SLE/SLT extended cab short bed
$250
$215
NA Sportside.
Spare tire lock
Denali, SLE/SLT, Work/Base
$15
$13
Roof marker lights
SLE, SLT
$55
$47
Extended cab requires 4-Wheel Quadrasteer Steering Pkg. NA regular cab.
Engine-block heater
Denali, SLE/SLT, Work/Base
$35
$30
Special Purpose, Wheels and Tires
Skid plates
4WD
$95
$82
NA Denali.
Heavy-duty transmission-oil cooler
Base, SLE, SLT
$95
$82