Quick Reference
100 ft-lb
Lug Nut Torque
35 PSI
Tire Pressure
4.0-6.0 qt
Oil Capacity
19mm
Lug Nut Socket
GMC Terrain Tire Pressure (PSI)
Recommended tire pressure for GMC Terrain compact SUV. Always verify with the door jamb sticker.
| Year Range | Trim | Front PSI | Rear PSI | Spare |
|---|---|---|---|---|
| 2018-2025 | SLE/SLT (17"/18") | 35 | 35 | 60 |
| 2018-2025 | Denali (19") | 35 | 35 | 60 |
| 2018-2025 | AT4 (17") | 35 | 35 | 60 |
| 2010-2017 | SLE (17") | 35 | 35 | 60 |
| 2010-2017 | SLT/Denali (18"/19") | 35 | 35 | 60 |
AT4 Note: The off-road AT4 trim (2020+) uses all-terrain tires. Can run slightly lower PSI (32-33) for improved off-road traction.
GMC Terrain Lug Nut Torque Specs
| Year Range | Model | Torque (ft-lb) | Torque (Nm) | Socket Size |
|---|---|---|---|---|
| 2018-2025 | All Trims | 100 | 136 | 19mm |
| 2010-2017 | All Trims | 100 | 136 | 19mm |
Torque Pattern: Use star pattern. Tighten in 3 stages (35, 65, 100 ft-lb). Re-torque after 50-100 miles of driving.
GMC Terrain Oil Capacity
| Year | Engine | Capacity (qt) | Capacity (L) | Oil Type |
|---|---|---|---|---|
| 2018-2025 | 1.5L Turbo 4-cyl | 4.5 | 4.3 | 5W-30 dexos1 |
| 2018-2025 | 2.0L Turbo 4-cyl | 5.0 | 4.7 | 5W-30 dexos1 |
| 2013-2017 | 2.4L 4-cyl | 5.0 | 4.7 | 5W-30 dexos1 |
| 2013-2017 | 3.6L V6 | 6.0 | 5.7 | 5W-30 dexos1 |
| 2010-2012 | 2.4L 4-cyl | 5.0 | 4.7 | 5W-30 |
| 2010-2012 | 3.0L V6 | 5.5 | 5.2 | 5W-30 |
Filter Note: Capacity includes filter. Use dexos1 approved oil for 2011+ models. Oil life monitor typically triggers at 7,500 miles.
GMC Terrain Transmission Fluid
| Year | Transmission | Capacity (qt) | Fluid Type |
|---|---|---|---|
| 2018-2025 | 9-Speed Auto | 7.6 | DEXRON VI |
| 2010-2017 | 6-Speed Auto | 7.4 | DEXRON VI |
Service Note: GM considers transmission fluid "lifetime" but drain/fill every 45,000-60,000 miles recommended for AWD models or severe use.
Maintenance Schedule
| Service | Interval | Notes |
|---|---|---|
| Oil Change | 7,500 mi / 12 mo | Follow oil life monitor |
| Tire Rotation | 7,500 mi | Every oil change, check alignment |
| Transmission Fluid | 45,000 mi | Severe use/AWD, otherwise 97,500 |
| Spark Plugs | 97,500 mi | Iridium plugs |
| Air Filter | 45,000 mi | 22,500 mi in dusty conditions |
| Cabin Filter | 22,500 mi | Check for odors, reduced airflow |
| Brake Fluid | 45,000 mi / 5 yr | DOT 3 |
| Coolant | 150,000 mi / 10 yr | Dex-Cool extended life |
| AWD Fluid | 50,000 mi | AWD models only |
Terrain Quick Tips
Common Issues & Maintenance
2010-2017 Timing Chain: First-gen 2.4L engines (2010-2017) can develop timing chain stretch. Listen for rattling at startup. Replace timing chain set at 100,000 miles preventatively.
2018+ Redesign: Second-gen Terrain (2018+) is smaller, lighter, uses different platform. Much improved reliability over first generation.
1.5L Turbo Issues: Some 2018-2019 models had piston ring issues causing oil consumption. Check for TSB updates. Monitor oil level between changes.
AWD System: AWD Terrain uses on-demand system. Rear differential fluid should be changed at 50,000 miles. Use 75W-90 synthetic (1.4 quarts).
Denali Features: Denali trim includes premium interior, upgraded suspension, and unique exterior. Same mechanical components as SLT underneath.
AT4 Off-Road: AT4 trim (2020+) adds off-road suspension, skid plates, all-terrain tires. Not true rock-crawler but capable on trails.
Additional Terrain Specs
Spark Plug Specs
| Engine | Torque (ft-lb) | Gap | Replacement |
|---|---|---|---|
| 1.5L Turbo (2018+) | 15 | 0.035" | 97,500 mi |
| 2.0L Turbo (2018+) | 15 | 0.035" | 97,500 mi |
| 2.4L (2010-17) | 15 | 0.035" | 97,500 mi |
| 3.6L V6 (2013-17) | 15 | 0.043" | 97,500 mi |
| 3.0L V6 (2010-12) | 15 | 0.043" | 100,000 mi |
Drain Plug Torque
| Component | Torque (ft-lb) |
|---|---|
| Oil Pan Drain Plug | 18 |
| Transmission Drain Plug | 22 |
| Rear Diff Drain (AWD) | 20 |
Maintenance Guides for Your Gmc Terrain
Step-by-step guides for common maintenance tasks on your Gmc Terrain.
Check Tire Pressure
Maintain optimal PSI for safety and fuel economy
Torque Lug Nuts Properly
Avoid damage with correct torque specs
Change Your Oil
Complete DIY oil change guide with tools needed
Rotate Your Tires
Extend tire life with proper rotation patterns
Check Transmission Fluid
Ensure smooth shifting and transmission health
Test Your Battery
Prevent dead batteries with regular testing
More Guides: Visit our complete how-to guide library for brake repairs, electrical system diagnostics, seasonal maintenance, and more.
Recommended Tools & Parts for Terrain Maintenance
Essential tools and parts for maintaining your GMC Terrain. As an Amazon Associate, we earn from qualifying purchases.
Affiliate Disclosure: The Mechanic is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We only recommend products we believe will be helpful for maintaining your vehicle.