2012 GMC Terrain

The 2012 GMC Terrain is a compact SUV that offers a comfortable ride and decent fuel economy. Engine options for the 2012 Terrain include a 2.4L inline-4 engine producing 182 horsepower and 172 lb-ft of torque, and a 3.0L V6 engine producing 264 horsepower and 222 lb-ft of torque. Both engines are paired with a 6-speed automatic transmission. Owners often appreciate the Terrain’s spacious interior and user-friendly infotainment system. Common complaints revolve around engine issues, particularly with the 2.4L engine, and some transmission concerns.

Engine

2.4L Inline-4

• Excessive Oil Consumption
  • Description/Symptoms: Many owners have reported excessive oil consumption, sometimes requiring oil to be added between oil changes. This can lead to engine damage if not monitored closely. Visible blue smoke may be seen from the exhaust.
  • Solution: General Motors issued a service bulletin and extended warranty coverage for certain 2010-2017 model year vehicles with the 2.4L engine, including the 2012 Terrain, to address this issue. The fix involves a revised piston ring design, and potentially replacing the pistons and other related components.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: Recall #1600770 - Excessive Oil Consumption - GM Customer Satisfaction Program
• Timing Chain Failure
  • Description/Symptoms: The timing chain can stretch or break, leading to engine misfires, rough running, and potentially severe engine damage. Symptoms include a rattling noise from the engine, especially on startup, and a check engine light.
  • Solution: Replacing the timing chain, tensioner, guides, and potentially related components such as the camshaft sprockets.
  • Estimated Cost to Fix: $1,000 - $2,000

3.0L V6

No Issues Found

Transmission

6-Speed Automatic (Both Engines)

• Harsh Shifting/Slipping
  • Description/Symptoms: Some owners have reported harsh or erratic shifting, slipping between gears, or delayed engagement. This can be more noticeable during acceleration or deceleration.
  • Solution: Depending on the severity, the solution can range from a transmission fluid flush and filter replacement to a complete transmission rebuild or replacement. In some cases, reprogramming the transmission control module (TCM) may help.
  • Estimated Cost to Fix: $200 (fluid flush) - $3,000+ (rebuild/replacement)
  • Recalls: None Found

Suspension

• Premature Wear of Struts/Shocks
  • Description/Symptoms: Owners have reported that the struts and shocks wear out prematurely, leading to a bouncy or unstable ride, particularly over bumps or rough roads.
  • Solution: Replacement of the worn struts and shocks.
  • Estimated Cost to Fix: $400 - $800 (per axle)
  • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: Some owners have reported issues with the battery draining overnight or within a short period, even with the vehicle turned off. This can be caused by a parasitic draw from a faulty module or accessory.
  • Solution: Diagnosing and repairing the source of the parasitic draw. This may involve replacing a faulty module, accessory, or wiring harness.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found
• Infotainment System Malfunctions
  • Description/Symptoms: The infotainment system (radio, navigation, etc.) can experience glitches, freezing, or complete failure.
  • Solution: Software updates, replacement of the infotainment system module.
  • Estimated Cost to Fix: $100 - $800+
  • Recalls: None Found

Exterior

• Water Leaks into Cabin
  • Description/Symptoms: Water leaks are sometimes reported, typically entering through the sunroof drain tubes, or around the windshield. This can cause musty odors and potential damage to the interior.
  • Solution: Clearing the sunroof drain tubes or resealing the windshield.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Interior

• Dashboard Cracking
  • Description/Symptoms: Cracking of the dashboard, particularly in areas exposed to sunlight.
  • Solution: Dashboard replacement.
  • Estimated Cost to Fix: $500-$1500+
  • Recalls: None Found

Summary

The 2012 GMC Terrain can be a reliable vehicle, but potential buyers should be aware of some common issues, particularly the excessive oil consumption issue with the 2.4L engine. This can be a costly repair if not addressed promptly. Transmission issues, suspension wear, and electrical problems are also potential concerns. The severity of these issues ranges from minor inconveniences to major mechanical failures. The cost to fix these issues can vary greatly depending on the specific problem and the extent of the damage. Overall, it’s crucial to have any used 2012 Terrain thoroughly inspected by a qualified mechanic before purchase, paying close attention to the engine, transmission, and suspension.