THE SPECS GUIDE

2020 GMC Sierra

Find your trim. See what changes.

Compare recorded engines, drivetrains and specifications, then open the VIN pattern that matches your car.

Explore trims ↓ Compare specs →

Have a specific car in mind?

Use its full VIN to look up the vehicle and check the recorded specifications.

SIDE BY SIDE

Compare the details

Choose up to three VIN patterns. Each column describes one recorded pattern.

Vehicle 1 Vehicle 2 Vehicle 3

Swipe the table sideways to compare vehicles. Specification names stay visible.

Specification	Denali · 4WD 1GTU9FEL-L	SLT 3GTP8DED-L	Elevation · 4WD 1GTU9CED-L	SLT · 4WD 1GT49UE7-L	Fleet/Base · 4WD 1GT39SE7-L	SLT 1GT58NE7-L	Denali · 4WD 3GTU9FET-L	SLE · 4WD 1GT39TE7-L	SLE 1GT18ME7-L	SLE 1GT58RE7-L	Denali · 4WD 3GT49REY-L	AT4 · 4WD 1GT49PEY-G	Fleet/Base 1GD28LE7-L	Fleet/Base 1GD58LE7-L	SLT 1GTR8DET-L	Denali 3GTP8FET-L	SLE · 4WD 3GTP9BEK-L	AT4 · 4WD 1GT49VEY-L	SLE 1GTP8BED-L	Fleet/Base 1GTP8AEH-L	Fleet/Base 1GTP8AEK-L	SLE · 4WD 1GT09ME7-L	AT4 · 4WD 3GTU9EET-L	Trim not recorded S6EU9CED-L	Trim not recorded SCTU9CED-L	Elevation 1GTP8CET-L	SLT · 4WD 3GTU9DED-1	Fleet/Base · 4WD 1GTR9AEH-L	SLT · 4WD 1GTV9DED-L	SLT 1GTP8DET-L	Fleet/Base · 4WD 1GT49LE7-L	SLE · 4WD 1GT59TE7-L	SLE · 4WD 1GD49TEY-L	Fleet/Base 3GDN8AEF-L	Fleet/Base · 4WD 3GTN9AEH-L	Fleet/Base 1GTR8AEF-L	SLE · 4WD 3GTU9BED-L	Fleet/Base · 4WD 3GTU9AEF-L	SLE 1GTR8BET-L	Fleet/Base · 4WD 3GTP9AEK-L	AT4 · 4WD 1GTP9EED-L	Denali · 4WD 1GTU9FET-L	SLT 1GTR8DED-L	SLE 1GT28ME7-L	SLE 3GTP8BET-L	AT4 · 4WD 3GT49EET-L	SLT · 4WD 1GTU9DET-L	SLE · 4WD 1GT39TEY-L
Engine	6.2L 8-cyl	5.3L 8-cyl	5.3L 8-cyl	6.6L 8-cyl	6.6L 8-cyl	6.6L 8-cyl	3L 6-cyl	6.6L 8-cyl	6.6L 8-cyl	6.6L 8-cyl	6.6L 8-cyl	6.6L 8-cyl	6.6L 8-cyl	6.6L 8-cyl	3L 6-cyl	3L 6-cyl	2.7L 4-cyl	6.6L 8-cyl	5.3L 8-cyl	4.3L 6-cyl	2.7L 4-cyl	6.6L 8-cyl	3L 6-cyl	Not recorded	Not recorded	3L 6-cyl	5.3L 8-cyl	4.3L 6-cyl	5.3L 8-cyl	3L 6-cyl	6.6L 8-cyl	6.6L 8-cyl	6.6L 8-cyl	5.3L 8-cyl	4.3L 6-cyl	5.3L 8-cyl	5.3L 8-cyl	5.3L 8-cyl	3L 6-cyl	2.7L 4-cyl	5.3L 8-cyl	3L 6-cyl	5.3L 8-cyl	6.6L 8-cyl	3L 6-cyl	3L 6-cyl	3L 6-cyl	6.6L 8-cyl
Drivetrain	Four-wheel drive	Not recorded	Four-wheel drive	Four-wheel drive	Four-wheel drive	Not recorded	Four-wheel drive	Four-wheel drive	Not recorded	Not recorded	Four-wheel drive	Four-wheel drive	Not recorded	Not recorded	Not recorded	Not recorded	Four-wheel drive	Four-wheel drive	Not recorded	Not recorded	Not recorded	Four-wheel drive	Four-wheel drive	Not recorded	Not recorded	Not recorded	Four-wheel drive	Four-wheel drive	Four-wheel drive	Not recorded	Four-wheel drive	Four-wheel drive	Four-wheel drive	Not recorded	Four-wheel drive	Not recorded	Four-wheel drive	Four-wheel drive	Not recorded	Four-wheel drive	Four-wheel drive	Four-wheel drive	Not recorded	Not recorded	Not recorded	Four-wheel drive	Four-wheel drive	Four-wheel drive
Fuel	Gasoline	Gasoline	Gasoline	Gasoline	Gasoline	Gasoline	Diesel	Gasoline	Gasoline	Gasoline	Diesel	Diesel	Gasoline	Gasoline	Diesel	Diesel	Gasoline	Diesel	Gasoline	Gasoline	Gasoline	Gasoline	Diesel	Not recorded	Not recorded	Diesel	Gasoline	Gasoline	Gasoline	Diesel	Gasoline	Gasoline	Diesel	Gasoline	Gasoline	Gasoline	Gasoline	Gasoline	Diesel	Gasoline	Gasoline	Diesel	Gasoline	Gasoline	Diesel	Diesel	Diesel	Diesel
Body	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Incomplete	Incomplete	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Not recorded	Not recorded	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Incomplete	Incomplete	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup	Pickup
Seats	Not recorded	Not recorded	Not recorded	6	Not recorded	6	Not recorded	Not recorded	Not recorded	Not recorded	6	6	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	6	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded
Doors	4-door	4-door	4-door	4-door	2-door	Not recorded	4-door	2-door	4-door	Not recorded	4-door	4-door	Not recorded	Not recorded	Not recorded	4-door	4-door	4-door	4-door	4-door	4-door	2-door	4-door	Not recorded	Not recorded	4-door	4-door	Not recorded	Not recorded	4-door	4-door	Not recorded	4-door	2-door	2-door	Not recorded	4-door	4-door	Not recorded	4-door	4-door	4-door	Not recorded	Not recorded	4-door	4-door	4-door	2-door
Median asking price	$38,679	$31,031	$30,999	Not recorded	Not recorded	Not recorded	$34,990	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	$25,900	$45,998	$21,765	Not recorded	Not recorded	Not recorded	$36,995	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	$30,490	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	$27,949	$22,699	Not recorded	Not recorded	$35,679	$35,205	Not recorded	Not recorded	$27,900	Not recorded	$34,995	Not recorded
Price observations	208	66	77	Not recorded	Not recorded	Not recorded	55	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	13	16	5	Not recorded	Not recorded	Not recorded	48	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	7	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	39	7	Not recorded	Not recorded	43	37	Not recorded	Not recorded	6	Not recorded	10	Not recorded
Price sample updated	Sep 13, 2026	Sep 13, 2026	Sep 13, 2026	Not recorded	Not recorded	Not recorded	Sep 13, 2026	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Sep 13, 2026	Sep 13, 2026	Sep 13, 2026	Not recorded	Not recorded	Not recorded	Sep 13, 2026	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Sep 13, 2026	Not recorded	Not recorded	Not recorded	Not recorded	Not recorded	Sep 13, 2026	Sep 13, 2026	Not recorded	Not recorded	Sep 13, 2026	Sep 13, 2026	Not recorded	Not recorded	Sep 13, 2026	Not recorded	Sep 13, 2026	Not recorded

Missing data does not mean a feature is absent. Prices are advertised asking prices for each pattern’s own sample, not completed sale prices or a trim-wide average.

EXPLORE THE LINEUP

Find your Sierra

Grouped by recorded trim, with engine and drive variants underneath. Open a variant to see every source pattern.

2020 Sierra

AT4

5 VIN patterns

3L 6-cyl · Diesel · Four-wheel drive 2 patterns · View specs

3GTU9EET-L → 1,702 VINs in our data

Pickup

$36,995 median asking price

48 price observations · Updated Sep 13, 2026

3GT49EET-L → 1 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

5.3L 8-cyl · Gasoline · Four-wheel drive 1 pattern · View specs

1GTP9EED-L → 1,432 VINs in our data

Pickup

$35,679 median asking price

43 price observations · Updated Sep 13, 2026

6.6L 8-cyl · Diesel · Four-wheel drive 2 patterns · View specs

1GT49PEY-G → 1 VINs in our data

Pickup · 6 seats

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

1GT49VEY-L → 972 VINs in our data

Pickup · 6 seats

$45,998 median asking price

16 price observations · Updated Sep 13, 2026

2020 Sierra

Denali

5 VIN patterns

3L 6-cyl · Diesel · 4x2 1 pattern · View specs

3GTP8FET-L → 143 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

3L 6-cyl · Diesel · Four-wheel drive 2 patterns · View specs

3GTU9FET-L → 1,742 VINs in our data

Pickup

$34,990 median asking price

55 price observations · Updated Sep 13, 2026

1GTU9FET-L → 1,203 VINs in our data

Pickup

$35,205 median asking price

37 price observations · Updated Sep 13, 2026

6.2L 8-cyl · Gasoline · Four-wheel drive 1 pattern · View specs

1GTU9FEL-L → 6,170 VINs in our data

Pickup

$38,679 median asking price

208 price observations · Updated Sep 13, 2026

6.6L 8-cyl · Diesel · Four-wheel drive 1 pattern · View specs

3GT49REY-L → 1 VINs in our data

Pickup · 6 seats

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

2020 Sierra

Elevation

2 VIN patterns

3L 6-cyl · Diesel · 4x2 1 pattern · View specs

1GTP8CET-L → 8 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

5.3L 8-cyl · Gasoline · Four-wheel drive 1 pattern · View specs

1GTU9CED-L → 2,957 VINs in our data

Pickup

$30,999 median asking price

77 price observations · Updated Sep 13, 2026

2020 Sierra

Fleet/Base

12 VIN patterns

2.7L 4-cyl · Gasoline · 4x2 1 pattern · View specs

1GTP8AEK-L → 1 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

2.7L 4-cyl · Gasoline · Four-wheel drive 1 pattern · View specs

3GTP9AEK-L → 65 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

4.3L 6-cyl · Gasoline · 4x2 1 pattern · View specs

1GTP8AEH-L → 14 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

4.3L 6-cyl · Gasoline · Four-wheel drive 2 patterns · View specs

1GTR9AEH-L → 93 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

3GTN9AEH-L → 48 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

5.3L 8-cyl · Gasoline · 4x2 2 patterns · View specs

3GDN8AEF-L → 1 VINs in our data

Incomplete

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

1GTR8AEF-L → 89 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

5.3L 8-cyl · Gasoline · Four-wheel drive 1 pattern · View specs

3GTU9AEF-L → 374 VINs in our data

Pickup

$22,699 median asking price

7 price observations · Updated Sep 13, 2026

6.6L 8-cyl · Gasoline · 4x2 2 patterns · View specs

1GD28LE7-L → 21 VINs in our data

Incomplete

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

1GD58LE7-L → 33 VINs in our data

Incomplete

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

6.6L 8-cyl · Gasoline · Four-wheel drive 2 patterns · View specs

1GT39SE7-L → 70 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

1GT49LE7-L → 506 VINs in our data

Pickup

$30,490 median asking price

7 price observations · Updated Sep 13, 2026

2020 Sierra

SLE

13 VIN patterns

2.7L 4-cyl · Gasoline · Four-wheel drive 1 pattern · View specs

3GTP9BEK-L → 283 VINs in our data

Pickup

$25,900 median asking price

13 price observations · Updated Sep 13, 2026

3L 6-cyl · Diesel · 4x2 2 patterns · View specs

1GTR8BET-L → 3 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

3GTP8BET-L → 62 VINs in our data

Pickup

$27,900 median asking price

6 price observations · Updated Sep 13, 2026

5.3L 8-cyl · Gasoline · 4x2 1 pattern · View specs

1GTP8BED-L → 273 VINs in our data

Pickup

$21,765 median asking price

5 price observations · Updated Sep 13, 2026

5.3L 8-cyl · Gasoline · Four-wheel drive 1 pattern · View specs

3GTU9BED-L → 1,797 VINs in our data

Pickup

$27,949 median asking price

39 price observations · Updated Sep 13, 2026

6.6L 8-cyl · Diesel · Four-wheel drive 2 patterns · View specs

1GD49TEY-L → 17 VINs in our data

Incomplete

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

1GT39TEY-L → 26 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

6.6L 8-cyl · Gasoline · 4x2 3 patterns · View specs

1GT18ME7-L → 4 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

1GT58RE7-L → 1 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

1GT28ME7-L → 1 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

6.6L 8-cyl · Gasoline · Four-wheel drive 3 patterns · View specs

1GT39TE7-L → 14 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

1GT09ME7-L → 6 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

1GT59TE7-L → 8 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

2020 Sierra

SLT

9 VIN patterns

3L 6-cyl · Diesel · 4x2 2 patterns · View specs

1GTR8DET-L → 1 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

1GTP8DET-L → 15 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

3L 6-cyl · Diesel · Four-wheel drive 1 pattern · View specs

1GTU9DET-L → 338 VINs in our data

Pickup

$34,995 median asking price

10 price observations · Updated Sep 13, 2026

5.3L 8-cyl · Gasoline · 4x2 2 patterns · View specs

3GTP8DED-L → 3,657 VINs in our data

Pickup

$31,031 median asking price

66 price observations · Updated Sep 13, 2026

1GTR8DED-L → 7 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

5.3L 8-cyl · Gasoline · Four-wheel drive 2 patterns · View specs

3GTU9DED-1 → 1 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

1GTV9DED-L → 11 VINs in our data

Pickup

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

6.6L 8-cyl · Gasoline · 4x2 1 pattern · View specs

1GT58NE7-L → 1 VINs in our data

Pickup · 6 seats

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

6.6L 8-cyl · Gasoline · Four-wheel drive 1 pattern · View specs

1GT49UE7-L → 92 VINs in our data

Pickup · 6 seats

No qualifying asking-price sample for this pattern.

2020 Sierra

Trim not recorded

2 VIN patterns

Engine not recorded · Drive not recorded 2 patterns · View specs

S6EU9CED-L → 1 VINs in our data

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

SCTU9CED-L → 1 VINs in our data

No qualifying asking-price sample for this pattern.

Limited record — some specifications may be missing.

Source: manufacturer specifications decoded through NHTSA vPIC, alongside VIN and listing records in our dataset. Trim groups are for browsing; shared labels do not establish identical equipment. Confirm options on the specific vehicle.

THE MARKET VIEW

What are 2020 Sierras listed for?

Explore model-year asking prices and available market history.

Explore prices →

BEFORE YOU CHOOSE

Go beyond the spec sheet

Equipment, fuel economy and safety results can vary with the vehicle’s engine, drivetrain and options.

Safety & recalls

Check the tested body style and drivetrain before comparing crash ratings.

Check NHTSA ratings → Check recalls by VIN →

Fuel economy

Match the engine and drivetrain to an EPA entry. A model-year fuel estimate may describe a different variant from yours.

Find the matching EPA vehicle →

Prices across model years

Compare current asking-price samples. Differences between model years are not a forecast of how one car will depreciate.

Sierra prices by age → Asking-price history →

What would you like to do?

Price, research and present your inventory.

Understand car prices and market trends.

Build with automotive data.

2020 GMC Sierra

Have a specific car in mind?

Compare the details

Find your Sierra

AT4

Denali

Elevation

Fleet/Base

SLE

SLT

Trim not recorded

What are 2020 Sierras listed for?

Go beyond the spec sheet

Safety & recalls

Fuel economy

Prices across model years