2018 GMC

Acadia AWD

Auto 6-spd, 6 cyl, 3.6 L

GMC Acadia: best and worst years

Overview

Body: Standard Sport Utility Vehicle 4WDEPA, from EPA, last updated 6/11/2026
Drivetrain: All-Wheel DriveEPA, from EPA, last updated 6/11/2026
Transmission: Automatic 6-spdEPA, from EPA, last updated 6/11/2026
Powertrain: GasEPA, from EPA, last updated 6/11/2026
Fuel: RegularEPA, from EPA, last updated 6/11/2026

Engine & performance

HP: 310
Power to weight: 0.078 hp/lb
Axle ratio: 3.16
Cyl: 6EPA, from EPA, last updated 6/11/2026
Aspiration: Naturally aspiratedEPA, from EPA, last updated 6/11/2026
Start-stop system: NoEPA, from EPA, last updated 6/11/2026

Efficiency

MPG Hwy: 25 mpgEPA, from EPA, last updated 6/11/2026
MPG City: 17 mpgEPA, from EPA, last updated 6/11/2026
MPG Comb: 20 mpgEPA, from EPA, last updated 6/11/2026
Fuel $/yr: $3,100EPA, from EPA, last updated 6/11/2026
CO₂: 442 g/miEPA, from EPA, last updated 6/11/2026
Eco Score: 4/10EPA, from EPA, last updated 6/11/2026
Smog score: 5/10
Elec. Range: 0 miEPA, from EPA, last updated 6/11/2026
SmartWay certified: No

Dimensions & capacity

Length: 194 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Width: 76 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Height: 69 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Wheelbase: 113 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Curb Weight: 3,955 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026

Safety NHTSA, model year

Overall crash rating: ★★★★★
Rollover rating: ★★★★★
Stability control (ESC): Standard
Forward-collision warning: Optional
Lane-departure warning: Optional
Recalls: 2
Owner complaints: 382
Reported injuries: 12

Feature availability

Which features come standard, cost extra, or are locked to a pricier trim arrives with the next data phase. Standard equipment shows here today.

Standard

Reported problems NHTSA owner complaints, model year

POWER TRAIN31%
UNKNOWN OR OTHER22%
ELECTRICAL SYSTEM21%
ENGINE6%
STEERING4%
SERVICE BRAKES4%

Source: NHTSA owner complaints, 519 total.

GMC Acadia: best and worst years

Warranty manufacturer terms, by make

Basic: 3 yr / 36k mi
Powertrain: 5 yr / 60k mi
Roadside assistance: 5 yr / 60k mi
Maintenance: 1 yr / 12k mi
EV battery: 8 yr / 100k mi

Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.