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2008 GMC Sierra 1500 SLT
Truck (Extended Cab) · 315 hp · 16–17 mpg combined
Market
Too few listings to publish a market price.
Own one? Yours has a number of its own.
Track what yours is worthA fresh estimate every month, in one short email. Not an offer to buy.Start trackingWhich Sierra 1500 is right for you?
Six trims, $17,590 to $39,060. Tap one to open it.
Bar heights follow the price. The widest step is $7,600, from Work Truck to SL.
The numbers.
Eight configurations: rear-wheel or four-wheel drive, 4-speed automatic.
124 standard items.
Four groups, sized by how much is in each.
- Front head room
- Front leg room
- Front shoulder room
- Front hip room
- leather
- bucket front seats
- 8-way power driver seat
- height adjustable driver seat
- Driver seat with power adjustable lumbar support
- 2 memorized driver seat settings
- 8-way power passenger seat
- height adjustable passenger seat
- Passenger seat with power adjustable lumbar support
- multi-level heated driver seat
- multi-level heated passenger seat
- trip computer
- compass
- external temperature display
- tachometer
- clock
- low fuel level warning
- Rear head room
- Rear leg room
- Rear shoulder room
- Rear hip room
- Split-folding rear seatback
- folding center armrest
- tilt-adjustable steering wheel
- Audio and cruise controls on steering wheel
- power steering
- 12V rear power outlet(s)
- cruise control
- front and rear cupholders
- front and rear door pockets
- front seatback storage
- retained accessory power
- leather steering wheel
- Dual zone front climate control
- rear ventilation ducts
- Dual illuminating vanity mirrors
- electrochromatic inside rearview mirror
- turn signal in mirrors
- Rear floor mats
- cargo area light
- front and rear reading lights
- 2 one-touch power windows
- remote keyless power door locks
- Power mirrors
- Reverse tilt dual mirrors provides curb view when vehicle in reverse
- Heated mirrors
- Base engine size
- Cylinders
- Base engine type
- Horsepower
- Torque
- Valves
- Cam type
- cylinder deactivation
- polished alloy wheels
- 17 x 7.5 in. wheels
- All season tires
- P245/70R17 tires
- Steel spare wheel
- fullsize non-matching spare tire
- underbody mounted spare tire
- Transmission
- Drive type
- Fuel type
- EPA city/highway MPG
- EPA combined MPG
- Range in miles (city/hwy)
- Fuel tank capacity
- Length
- Overall width without mirrors
- Height
- Wheelbase
- Front track
- Rear track
- Bed length
- Turning circle
- Ground clearance
- Angle of approach
- Angle of departure
- Curb weight
- Maximum towing capacity
- Maximum payload
- Gross weight
- Country of final assembly
- front independent suspension
- short and long arm front suspension
- Stabilizer bar stabilizer bar
- solid live axle rear suspension
- post-collision safety system
- Passenger airbag occupant sensing deactivation
- stability control
- child seat anchors
- Rear door child safety locks
- 4-wheel ABS
- Ventilated front disc / rear drum brakes
- electronic brakeforce distribution
- tire pressure monitoring
- dusk sensing headlamps
- auto delay off headlamps
- daytime running lights
- front fog/driving lights
- Turn signal mirrors
- 2 front headrests
- Front height adjustable headrests
- 2 rear headrests
- Rear height adjustable headrests
- Rear center 3-point belt
- front seatbelt pretensioners
- remote anti-theft alarm system
- engine immobilizer
- AM/FM stereo
- Bose premium brand speakers
- 7 total speakers
- 1 subwoofer(s)
- auxiliary audio input
- satellite radio satellite radio
- radio data system
- adjustable speed sensitive volume control
- separate rear audio
- mast antenna
5 interiors
- Light Titanium/Ebony
- Very Dark Cashmere/Light Cashmere
- Dark Titanium/Light Titanium
- Morocco Brown/Ebony
- Ebony
All leather.
10 factory paints
- Stealth Gray Metallic
- Silver Birch Metallic
- Sonoma Red Metallic
- Fire Red
- Dark Crimson Metallic
- Medium Brown Metallic
- Summit White
- Deep Blue Metallic
- Onyx Black
- Steel Gray Metallic
8 of the 10 are shown on the car at the top.
Safety and recalls
2 recall campaigns on file.
Recalls are settled per car, not per model. Check the one you are buying.
NHTSA has not published ratings for the 2008 Sierra 1500. A model year is often unrated for a year or more after it goes on sale.
NHTSA NCAP · checked Oct 2026
Factory coverage.
It runs from the first sale date, not the model year.
Sponsored · Insurance offers
What would this Sierra 1500 cost to insure?
Advertiser disclosure: we may earn a commission when you get a quote or buy through links on this page. Rates depend on the driver, the car and the ZIP.
Other years of the Sierra 1500 SLT.
2009 Sierra 1500 SLT
$34,860$3,255 more11 colors · starting MSRP
2007 Sierra 1500 SLT
$30,855$750 less9 colors · starting MSRP
2010 Sierra 1500 SLT
$35,780$4,175 more10 colors · starting MSRPPictures show this year's car in another paint. Starting MSRP is before destination, taxes and dealer fees.