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2018 GMC

Acadia AWD

Auto 6-spd, 6 cyl, 3.6 L

GMC Acadia: best and worst years
2018 GMC Acadia AWD

Closest available photo (2013 model year); you're viewing the 2018.

2013 photoKevautoCC BY-SA 4.0Wikimedia Commons

Overview

Body
Standard Sport Utility Vehicle 4WDEPA, from EPA, last updated 6/22/2026
Drivetrain
All-Wheel DriveEPA, from EPA, last updated 6/22/2026
Transmission
Automatic 6-spdEPA, from EPA, last updated 6/22/2026
Powertrain
GasEPA, from EPA, last updated 6/22/2026
Fuel
RegularEPA, from EPA, last updated 6/22/2026

Engine & performance

HP
310
Power to weight
0.078 hp/lb
Axle ratio
3.16
Cyl
6EPA, from EPA, last updated 6/22/2026
Aspiration
Naturally aspiratedEPA, from EPA, last updated 6/22/2026
Start-stop system
NoEPA, from EPA, last updated 6/22/2026

Efficiency

MPG Hwy
25 mpgEPA, from EPA, last updated 6/22/2026
MPG City
17 mpgEPA, from EPA, last updated 6/22/2026
MPG Comb
20 mpgEPA, from EPA, last updated 6/22/2026
Fuel $/yr
$3,100EPA, from EPA, last updated 6/22/2026
CO₂
442 g/miEPA, from EPA, last updated 6/22/2026
Eco Score
4/10EPA, from EPA, last updated 6/22/2026
Smog score
5/10
Elec. Range
0 miEPA, from EPA, last updated 6/22/2026
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

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

Known issues manufacturer service bulletins, model year

827 service bulletins filed with NHTSA for this model year

  • Apr 1, 2026UNKNOWN OR OTHERPIT3271Q

    This preliminary information communicates information about how to determine if a wheel and tires size change is available.

  • Mar 9, 2026UNKNOWN OR OTHERPIP6104

    This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

  • Mar 9, 2026UNKNOWN OR OTHERPIP4902V

    This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

  • Jan 8, 2026UNKNOWN OR OTHERPIP4902U

    This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

  • Nov 20, 2025UNKNOWN OR OTHERPIT5214G

    This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further sup

  • Sep 9, 2025UNKNOWN OR OTHER13598

    New Vehicle Monitoring Programs Section in IVH

  • Sep 8, 2025UNKNOWN OR OTHERPIP6085

    This Preliminary information communicates a possible issue with an engine timing chain, gear or crankshaft key.

  • Aug 14, 2025UNKNOWN OR OTHERPIP4902T

    This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

  • and 819 more

Source: NHTSA manufacturer communications (technical service bulletins).

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.