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Monday 9:00am - 7:00pm
Tuesday 9:00am - 7:00pm
Wednesday 9:00am - 7:00pm
Thursday 9:00am - 7:00pm
Friday 9:00am - 6:00pm
Saturday 9:00am - 3:00pm
Sunday Closed
Monday 7:30am - 5:30pm
Tuesday 7:30am - 5:30pm
Wednesday 7:30am - 5:30pm
Thursday 7:30am - 5:30pm
Friday 7:30am - 5:30pm
Saturday 7:30am - 12:00pm
Sunday Closed
Monday 7:30am - 5:30pm
Tuesday 7:30am - 5:30pm
Wednesday 7:30am - 5:30pm
Thursday 7:30am - 5:30pm
Friday 7:30am - 5:30pm
Saturday 7:30am - 12:00pm
Sunday Closed

New GMC for Sale in Cornwall

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Pickup (25)
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2020 GMC Sierra 1500 Denali (Stk: 20014) in Cornwall - Image 1 of 1

- Navigation

Suggested Price:$74,237
Our Price: $68,837

Price does not include taxes and licensing fees.

Finance from $419*(Bi-weekly)
$71,237 x 84 Months @ 1.99% APR with $0 down payment (2.99% Effective Rate, cost of borrowing $5,110). Plus taxes and license.

Lease from $426*(Bi-weekly)
$72,237 x 48 Months @ 3.9% APR with $0 down payment(estimated financing rate, cost of borrowing $8,582)
. Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Black
VIN:1GTU9FED4LZ112449
Transmission:Automatic
Drivetrain:4x4
Stock #:20014
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
Navigation, Driver Alert Package II, Rear View Camera, GMC MultiPro Tailgate, Sunroof!

New Year - New Ride Sales Event is on now!

Sharper, more capable, intelligent, and innovative, this 2020 GMC Sierra 1500 is unlike any truck you know.

This endlessly capable Sierra
.....Read More
2020 GMC Sierra 1500 Elevation (Stk: 20021) in Cornwall - Image 1 of 1

- BOX LINER

Suggested Price:$60,777
Our Price: $58,777

Price does not include taxes and licensing fees.

Finance from $340*(Bi-weekly)
$57,777 x 84 Months @ 1.99% APR with $0 down payment (estimated financing rate, cost of borrowing $4,142). Plus taxes and license.

Lease from $324*(Bi-weekly)
$58,777 x 48 Months @ 3.9% APR with $0 down payment(estimated financing rate, cost of borrowing $7,174)
. Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Black
VIN:1GTU9CED0LZ130185
Transmission:Automatic
Drivetrain:4x4
Stock #:20021
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
Elevation Value Package, Elevation Convenience Package, BOX LINER , Assist Steps!

New Year - New Ride Sales Event is on now!

Sharper, more capable, intelligent, and innovative, this 2020 GMC Sierra 1500 is unlike any truck you know.

This endlessly capable Sierra 1500
.....Read More
2020 GMC Sierra 1500 SLE (Stk: 20029) in Cornwall - Image 1 of 1

- Kodiak Edition

Suggested Price:$59,052
Our Price: $53,652

Price does not include taxes and licensing fees.

Finance from $330*(Bi-weekly)
$56,052 x 84 Months @ 1.99% APR with $0 down payment (3.27% Effective Rate, cost of borrowing $4,017). Plus taxes and license.

Lease from $314*(Bi-weekly)
$57,052 x 48 Months @ 3.9% APR with $0 down payment(estimated financing rate, cost of borrowing $6,968)
. Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Other
VIN:1GTU9BED8LZ135516
Transmission:Automatic
Drivetrain:4x4
Stock #:20029
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
Kodiak Edition, 6 inch Chrome Assist Steps, Driver Alert Package I!

New Year - New Ride Sales Event is on now!

Sharper, more capable, intelligent, and innovative, this 2020 GMC Sierra 1500 is unlike any truck you know.

This endlessly capable Sierra 1500 stands out
.....Read More
2020 GMC Sierra 1500 AT4 (Stk: 20031) in Cornwall - Image 1 of 1

- $398 B/W

Suggested Price:$67,067
Our Price: $61,667

Price does not include taxes and licensing fees.

Finance from $377*(Bi-weekly)
$64,067 x 84 Months @ 1.99% APR with $0 down payment (3.1% Effective Rate, cost of borrowing $4,593). Plus taxes and license.

Lease from $383*(Bi-weekly)
$65,067 x 48 Months @ 3.9% APR with $0 down payment(estimated financing rate, cost of borrowing $7,736)
. Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:White
VIN:1GTP9EED8LZ137331
Transmission:Automatic
Drivetrain:4x4
Stock #:20031
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
GMC MultiPro Tailgate, Rear View Camera, Spray-On Bed Liner, Assist Steps, SiriusXM!

New Year - New Ride Sales Event is on now!

With a taller height, better technology, and massive power, this 2020 GMC Sierra 1500 elevates your ride in more ways than one.

This
.....Read More
2020 GMC Sierra 1500 AT4 (Stk: 20050) in Cornwall - Image 1 of 1

- AT4 PREMIUM PKG

Suggested Price:$79,152
Our Price: $73,752

Price does not include taxes and licensing fees.

Finance from $448*(Bi-weekly)
$76,152 x 84 Months @ 1.99% APR with $0 down payment (2.92% Effective Rate, cost of borrowing $5,461). Plus taxes and license.

Lease from $456*(Bi-weekly)
$77,152 x 48 Months @ 3.9% APR with $0 down payment(estimated financing rate, cost of borrowing $9,157)
. Plus taxes and license.

View Details
Body Style:Pickup
Engine:6.2L 8cyl
Exterior Colour:White
VIN:1GTP9EEL0LZ137928
Transmission:Automatic
Drivetrain:4x4
Stock #:20050
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
AT4 PREMIUM PKG, Power Sliding Sunroof, 20 inch Aluminum Wheels, Tonneau Cover, Driver Alert Package !

New Year - New Ride Sales Event is on now!

Capable on road, relentless off road and completely composed when hauling a load or a trailer, this 2020 GMC Sierra 1500 is
.....Read More
2020 GMC Sierra 1500 Elevation (Stk: 20052) in Cornwall - Image 1 of 1

- Assist Steps

Suggested Price:$64,712
Our Price: $62,712

Price does not include taxes and licensing fees.

Finance from $363*(Bi-weekly)
$61,712 x 84 Months @ 1.99% APR with $0 down payment (estimated financing rate, cost of borrowing $4,426). Plus taxes and license.

Lease from $346*(Bi-weekly)
$62,712 x 48 Months @ 3.9% APR with $0 down payment(estimated financing rate, cost of borrowing $7,652)
. Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Red
VIN:1GTU9CED2LZ100167
Transmission:Automatic
Drivetrain:4x4
Stock #:20052
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
X31 Off Road Package, SPRAY ON BEDLINER, Assist Steps!

New Year - New Ride Sales Event is on now!

The 2020 Sierra 1500 has the proven GMC power you expect from your truck, ensuring that every haul, every trailering experience, and every trip is handled like a pro.

.....Read More
2020 GMC Sierra 1500 Denali (Stk: 20069) in Cornwall - Image 1 of 1

- SiriusXM

Suggested Price:$73,602
Our Price: $68,202

Price does not include taxes and licensing fees.

Finance from $416*(Bi-weekly)
$70,602 x 84 Months @ 1.99% APR with $0 down payment (3% Effective Rate, cost of borrowing $5,055). Plus taxes and license.

Lease from $422*(Bi-weekly)
$71,602 x 48 Months @ 3.9% APR with $0 down payment(estimated financing rate, cost of borrowing $8,509)
. Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Dark Grey
VIN:1GTU9FED3LZ141036
Transmission:Automatic
Drivetrain:4x4
Stock #:20069
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
Power Sliding Sunroof, SiriusXM!

New Year - New Ride Sales Event is on now!

With elegant style and refinement that beautifully match its brutal capability and modern safety technology, this 2020 GMC Sierra 1500 is ready to rule any road you take it on.

This endlessly
.....Read More
2020 GMC Sierra 1500 AT4 (Stk: 20083) in Cornwall - Image 1 of 1

- AT4 PREMIUM PKG

Suggested Price:$80,207
Our Price: $74,807

Price does not include taxes and licensing fees.

Finance from $455*(Bi-weekly)
$77,207 x 84 Months @ 1.99% APR with $0 down payment (2.91% Effective Rate, cost of borrowing $5,527). Plus taxes and license.

Lease from $462*(Bi-weekly)
$78,207 x 48 Months @ 3.9% APR with $0 down payment(estimated financing rate, cost of borrowing $9,284)
. Plus taxes and license.

View Details
Body Style:Pickup
Engine:6.2L 8cyl
Exterior Colour:White
VIN:1GTP9EEL5LZ110482
Transmission:Automatic
Drivetrain:4x4
Stock #:20083
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
AT4 PREMIUM PKG, Power Sliding Sunroof, 20 inch Aluminum Wheels, Tonneau Cover, Driver Alert Package !

New Year - New Ride Sales Event is on now!

The 2020 Sierra 1500 has the proven GMC power you expect from your truck, ensuring that every haul, every trailering
.....Read More
2020 GMC Sierra 1500 SLT (Stk: 20092) in Cornwall - Image 1 of 1

- $458 B/W

Suggested Price:$76,732
Our Price: $71,332

Price does not include taxes and licensing fees.

Finance from $434*(Bi-weekly)
$73,732 x 84 Months @ 1.99% APR with $0 down payment (2.95% Effective Rate, cost of borrowing $5,285). Plus taxes and license.

Lease from $441*(Bi-weekly)
$74,732 x 48 Months @ 3.9% APR with $0 down payment(estimated financing rate, cost of borrowing $8,876)
. Plus taxes and license.

View Details
Body Style:Pickup
Engine:6.2L 8cyl
Exterior Colour:White
VIN:1GTU9DEL3LZ131103
Transmission:Automatic
Drivetrain:4x4
Stock #:20092
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
Power Sliding Sunroof, Max Trailering Package, SLT Premium Plus Package!

New Year - New Ride Sales Event is on now!

With a taller height, better technology, and massive power, this 2020 GMC Sierra 1500 elevates your ride in more ways than one.

This endlessly capable
.....Read More

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