Used 2020 GMC Sierra 1500 for Sale in Seattle, WA
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- Sierra 1500s for Sale
Top Ranked Used 2018-2022 GMC Sierra 1500s near Seattle
Ranked by Most Car for Your Money
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#1 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $1,740 Price Drop
- Great Price - $5,580 Below Market
- Includes $8,052 Premium Upgrades

#2 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $291 Price Drop
- Great Price - $5,472 Below Market
- Includes $9,316 Premium Upgrades

#3 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- Great Price - $4,318 Below Market
- Includes $7,332 Premium Upgrades
- CARFAX: One Owner, Clean Title, Not a rental or commercial vehicle

#4 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $1,000 Price Drop
- Great Price - $12,199 Below Market
- Includes $5,696 Premium Upgrades
#5 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $1,000 Price Drop
- Great Price - $9,019 Below Market
- Includes $11,812 Premium Upgrades
#6 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $1,062 Price Drop
- Great Price - $8,340 Below Market
- Includes $9,444 Premium Upgrades
#7 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $2,653 Price Drop
- Great Price - $7,028 Below Market
- Includes $15,501 Premium Upgrades
#8 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- Great Price - $5,902 Below Market
- Includes $13,808 Premium Upgrades
- CARFAX: One Owner, Clean Title, Not a rental or commercial vehicle
#9 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $18 Price Drop
- Great Price - $5,705 Below Market
- Includes $12,013 Premium Upgrades
#10 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $7,980 Price Drop
- Great Price - $4,232 Below Market
- Includes $10,451 Premium Upgrades
#11 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $3,274 Price Drop
- Great Price - $3,914 Below Market
- Includes $6,513 Premium Upgrades
#12 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $112 Price Drop
- Great Price - $3,641 Below Market
- Includes $12,500 Premium Upgrades
#13 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $250 Price Drop
- Great Price - $3,345 Below Market
- Includes $14,189 Premium Upgrades
#14 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- Great Price - $2,777 Below Market
- Includes $7,771 Premium Upgrades
- CARFAX: One Owner, Clean Title
#15 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- Great Price - $2,722 Below Market
- Includes $2,204 Premium Upgrades
- CARFAX: One Owner, Clean Title, Not a rental or commercial vehicle
#16 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $199 Price Drop
- Great Price - $6,423 Below Market
- Includes $4,640 Premium Upgrades
#17 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $789 Price Drop
- Great Price - $5,212 Below Market
- Includes $10,092 Premium Upgrades
#18 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- Good Price - $3,364 Below Market
- Includes $10,124 Premium Upgrades
- CARFAX: Clean Title, Not a rental or commercial vehicle
#19 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- $3,500 Price Drop
- Good Price - $2,921 Below Market
- Includes $11,620 Premium Upgrades
#20 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- Good Price - $2,820 Below Market
- Includes $11,232 Premium Upgrades
- CARFAX: One Owner, Clean Title
#21 2018-2022 GMC Sierra 1500
It’s an “A+” Buy
- Good Price - $2,224 Below Market
- Includes $6,900 Premium Upgrades
- CARFAX: One Owner, Clean Title, Not a rental or commercial vehicle
#22 2018-2022 GMC Sierra 1500
It’s an “A” Buy
- $200 Price Drop
- Great Price - $3,244 Below Market
- CARFAX: One Owner, Clean Title, Not a rental or commercial vehicle
#23 2018-2022 GMC Sierra 1500
It’s an “A” Buy
- $457 Price Drop
- Great Price - $2,905 Below Market
- Includes $1,116 Premium Upgrades
#24 2018-2022 GMC Sierra 1500
It’s an “A” Buy
- $500 Price Drop
- Great Price - $2,507 Below Market
- Includes $1,116 Premium Upgrades
#25 2018-2022 GMC Sierra 1500
It’s an “A” Buy
- $500 Price Drop
- Good Price - $2,431 Below Market
- Includes $2,948 Premium Upgrades
2020 GMC Sierra 1500
The Basics
Performance
Safety
CoPilot Star Rating
Summary
The Good Stuff
Available Trims [1]
- Heated Mirrors
- Premium Wheels
- Blind Spot Monitor
- Cross-Traffic Alert
- Auxiliary Audio Input
- Back-Up Camera
- Bluetooth Connection
- Smartphone Integration
- Android Auto
- Apple CarPlay
- WiFi Hotspot
Available Packages [12]
ENHANCED CAPABILITY PACKAGE
$175 Original MSRP
- skid plates
- high-capacity air filter
LPO, GMC PROTECTION PACKAGE
$370 Original MSRP
- all-weather floor liner
- LPO and front and rear Black molded splash guards
- LPO
1SA 2.7L FLEET PACKAGE
$670 Original MSRP
- 2.7L Turbo engine
- 8-speed automatic transmission
- 220-amp alternator
- OnStar
- semi-automatic air conditioning
- Front 40/20/40 split-bench seat with covered armrest storage
- 120-volt power outlet
- Automatic Stop/Start and 120-volt bed-mounted power outlet
FLEET CONVENIENCE PACKAGE
$695 Original MSRP
- Remote Keyless Entry
- EZ Lift power lock and release tailgate
- cruise control and outside power mirrors
CONVENIENCE PACKAGE
$1,245 Original MSRP
- Remote Keyless Entry
- EZ Lift power lock and release tailgate
- tinted glass
- LED cargo bed lighting
- rear-window defogger
- cruise control and outside power mirrors
CONVENIENCE PACKAGE
$1,245 Original MSRP
- Remote Keyless Entry
- EZ Lift power lock and release tailgate
- tinted glass
- LED cargo bed lighting
- rear-window defogger
- cruise control and outside power mirrors
SIERRA VALUE PACKAGE
$1,640 Original MSRP
- Convenience Package
- Trailering Package
SIERRA VALUE PACKAGE
$1,640 Original MSRP
- Convenience Package
- Trailering Package
1SA DRIVER ALERT PACKAGE I
$1,165 Original MSRP
- (UD5) Front and Rear Park Assist
- (UKC) Lane Change Alert with Side Blind Zone Alert
- (UFG) Rear Cross Traffic Alert
- (KI4) 120-volt power outlet
- (KC9) 120-volt bed-mounted power outlet and (DP9) outside chrome mirror caps (Includes Perimeter Lighting. Includes recovery hooks on 2WD models.
1SA DRIVER ALERT PACKAGE I
$1,165 Original MSRP
- (UD5) Front and Rear Park Assist
- (UKC) Lane Change Alert with Side Blind Zone Alert
- (UFG) Rear Cross Traffic Alert
- (KI4) 120-volt power outlet
- (KC9) 120-volt bed-mounted power outlet and (DP9) outside chrome mirror caps (Includes Perimeter Lighting. Includes recovery hooks on 2WD models.
TRAILERING PACKAGE
$395 Original MSRP
- trailer hitch
- 7-pin and 4-pin connectors and Hitch Guidance
TRAILERING PACKAGE
$395 Original MSRP
- trailer hitch
- 7-pin and 4-pin connectors and Hitch Guidance
Vehicle Dimensions
Headroom/Legroom
Front Seats
- Headroom: 43.03
- Legroom: 44.53
Back Seats
- Headroom: 39.88
- Legroom: 35.24
Available Drive Trains
Available Engines
Available Transmissions
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