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2020 GMC Sierra 1500

2020 GMC Sierra 1500

Truck (Crew Cab)
four wheel drive
diesel fuel
Horsepower
277 hp
MPG Combined
–
MSRP
$46,300
Torque
460 lb-ft
Reliability Score
71/ 100Good
Based on 580 NHTSA complaints

Should You Buy a 2020 GMC Sierra 1500?

The 2020 GMC Sierra 1500 is a robust crew cab truck designed for both work and leisure. With a powerful 2.7L I4 engine producing 310 hp and 348 lb-ft of torque, it offers a capable four-wheel drive system, making it suitable for various terrains. The truck features an 8-speed shiftable automatic transmission, providing a smooth driving experience. With a combined MPG of 20.0 and a starting MSRP of $46,300, it strikes a balance between performance and efficiency. However, potential buyers should be aware of the 580 total complaints reported to the NHTSA, particularly concerning engine and electrical system issues, which predominantly occur within the first 20,000 miles.

Ideal For

This vehicle is best for individuals or families who need a reliable truck for both daily commuting and heavy-duty tasks, such as towing or transporting goods.

Strengths

  • +Spacious crew cab design accommodating up to 6 passengers
  • +Strong towing capacity suitable for work and recreation
  • +Advanced technology features for connectivity and safety
  • +Smooth ride quality with a refined interior
  • +Versatile four-wheel drive system for off-road capability

Weaknesses

  • -Reported engine and electrical issues early in ownership
  • -Higher MSRP compared to some competitors in the segment
  • -Average fuel efficiency for a truck of its size
  • -Limited availability of certain advanced safety features
  • -Some complaints about brake performance

Known Issues (NHTSA Data)

The 2020 GMC Sierra 1500 has a reliability score of 70.5/100, indicating some concerns among owners. The most common complaints involve the engine, powertrain, and electrical system, with 174, 76, and 67 complaints respectively. While there have been 12 crash incidents and 5 fire incidents reported, there have been no fatalities. Buyers should consider these factors when evaluating the vehicle's long-term reliability.

Complaint Patterns by Mileage
ELECTRICAL SYSTEM
0-20000 mi
18 reports
ENGINE
0-20000 mi
14 reports
SERVICE BRAKES
0-20000 mi
13 reports
STEERING
0-20000 mi
10 reports
UNKNOWN OR OTHER
0-20000 mi
7 reports
ENGINE
40000-60000 mi
7 reports
POWER TRAIN
0-20000 mi
5 reports
ENGINE AND ENGINE COOLING
80000-100000 mi
5 reports
Top Complaint Areas
ENGINE30% of complaints
POWER TRAIN13% of complaints
ELECTRICAL SYSTEM12% of complaints
SERVICE BRAKES8% of complaints
UNKNOWN OR OTHER7% of complaints

Performance

Horsepower
277 hp
Torque
460 lb-ft
Engine
3 L
Cylinders
I6
Transmission
8-speed shiftable automatic
Drive Type
four wheel drive

Efficiency

MPG Combined
–
Fuel Type
diesel fuel

Dimensions

Length
229.5 in
Width
81.1 in
Height
75.6 in
Wheelbase
139.4 in
Curb Weight
4,378 lbs
Ground Clearance
–

Capacity

Doors
4
Seating
6
Cargo
–
Max Cargo
–
Max Towing
–
Max Payload
–

ddpc Estimated Value

$24,811
$21,089 – $28,533
46% from MSRP
Original MSRP: $46,300
Depreciation Over Time
New
5yr
6yr
10yr
ddpc Estimate based on original MSRP, standard depreciation curves, vehicle class, and NHTSA reliability data. Not a substitute for professional appraisal. Actual value depends on condition, mileage, location, and market conditions.

Estimated Cost of Ownership

Estimated Annual Cost
$5,815
Per Mile
$0.48
5-Year Total
$50,564
Fuel
$2,100/yr
Maintenance
$750/yr
Insurance
$2,965/yr
Depreciation
$4,298/yr
Based on industry-standard estimates for this vehicle class. Fuel cost assumes 12,000 mi/yr at national average gas prices. Maintenance uses class-based intervals, not manufacturer-specific schedules. Actual costs vary by location, driving habits, and vehicle condition.

Available Trims (18)

Sierra 1500
Elevation 4dr Crew Cab 4WD 6.6 ft. SB (2.7L 4cyl Turbo 8A)
277 hp
four wheel drive
$46,300
Sierra 1500
Elevation 4dr Crew Cab 4WD 6.6 ft. SB (2.7L 4cyl Turbo 8A)
355 hp
four wheel drive
$46,300
Sierra 1500
AT4 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
277 hp
four wheel drive
$53,400
Sierra 1500
AT4 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
420 hp
four wheel drive
$53,400
Sierra 1500
2dr Regular Cab LB (4.3L 6cyl 6A)
355 hp
rear wheel drive
$29,600
Sierra 1500
SLE 4dr Crew Cab 4WD 5.8 ft. SB (2.7L 4cyl Turbo 8A)
277 hp
four wheel drive
$43,500
Sierra 1500
SLE 4dr Crew Cab 4WD 5.8 ft. SB (2.7L 4cyl Turbo 8A)
355 hp
four wheel drive
$43,500
Sierra 1500
SLE 4dr Double Cab SB (2.7L 4cyl Turbo 8A)
277 hp
rear wheel drive
$37,800
Sierra 1500
SLE 4dr Double Cab SB (2.7L 4cyl Turbo 8A)
355 hp
rear wheel drive
$37,800
Sierra 1500
SLT 4dr Double Cab SB (5.3L 8cyl 8A)
277 hp
rear wheel drive
$44,300
Sierra 1500
4dr Double Cab 4WD SB (4.3L 6cyl 6A)
355 hp
four wheel drive
$36,800
Sierra 1500
SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
277 hp
four wheel drive
$50,200
Sierra 1500
SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
420 hp
four wheel drive
$50,200
Sierra 1500
Denali 4dr Crew Cab 4WD 6.6 ft. SB (5.3L 8cyl 10A)
277 hp
four wheel drive
$58,500
Sierra 1500
Denali 4dr Crew Cab 4WD 6.6 ft. SB (5.3L 8cyl 10A)
420 hp
four wheel drive
$58,500
Sierra 1500
Denali 4dr Crew Cab 6.6 ft. SB (5.3L 8cyl 8A)
277 hp
rear wheel drive
$55,000
Sierra 1500
Elevation 4dr Double Cab SB (2.7L 4cyl Turbo 8A)
277 hp
rear wheel drive
$40,300
Sierra 1500
Elevation 4dr Double Cab SB (2.7L 4cyl Turbo 8A)
355 hp
rear wheel drive
$40,300

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