2013 GMC Terrain - Problems, Statistics, and Analysis

🔎 Common problems of the 2013 GMC Terrain

471 problems have been reported for the 2013 GMC Terrain. The following chart shows the 23 most common problems for 2013 GMC Terrain. The number one most common problem is related to the vehicle's engine and engine cooling with 201 problems. The second most common problem is related to the vehicle's visibility (55 problems).

Table 1. Common problems of the 2013 GMC Terrain

Problem Category	Number of Problems
Engine And Engine Cooling	201
Visibility	55
Power Train	45
Equipment	28
Electrical System	21
Other Fuel System	21
Air Bag	19
Steering	14
Structure	11
Exterior Lighting	10
Electronic Stability Control	7
Service Brakes	7
Suspension	6
Wheel	6
Vehicle Speed Control	5
Seats	4
Forward Collision Avoidance	3
Gasoline Fuel System	2
Chest Clip, Buckle, Harness	2
Carry Handle, Shell, Base	1
Lane Departure	1
Seat Belt	1
Tire	1

📈 PPMY Index and Problem Occurrence Trend

In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2013 GMC Terrain in the United States are 108,263 units [1]. If the total number of problems reported by GMC Terrain owners in the last 13 years is 471, and the age of the vehicle is 13, the PPMY index can then be calculated as

PPMY Index = 471 / 108,263 / 13 * 1000 = 0.33.

For more information, refer to this page: A study of reliability comparison across GMC Terrain model year vehicles.

The following chart shows the number of problems reported during each of the service years since the debut of the 2013 GMC Terrain in 2013.

Table 2. PPMY Index and Problem Occurrence Trend

Service Year	Number of Problems
2026	0
2025	7
2024	17
2023	22
2022	45
2021	52
2020	50
2019	70
2018	61
2017	36
2016	54
2015	12
2014	26
2013	1

📊 Compare the 2013 GMC Terrain with Other Model Years

When making the decision between buying a new or used GMC Terrain, the following table can be used to compare the 2013 GMC Terrain with the GMC Terrain from other model years. Note that the number of problems reported for the 2013 Terrain is 471 while the average number of problems reported for the 18 model years of the GMC Terrain is 225.

Table 3. Compare the 2013 GMC Terrain with other model years

Model Year	Number of Problems
2026 Terrain	6
2025 Terrain	10
2024 Terrain	40
2023 Terrain	32
2022 Terrain	88
2021 Terrain	42
2020 Terrain	246
2019 Terrain	263
2018 Terrain	304
2017 Terrain	163
2016 Terrain	168
2015 Terrain	375
2014 Terrain	383
2013 Terrain	471
2012 Terrain	496
2011 Terrain	546
2010 Terrain	418
2009 Terrain	1

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☘ Terrain Service Bulletins

⚑ Terrain Safety Recalls

☤ Terrain Defect Investigations