By converting Consumer Union reliability ratings of “Much better than average”, “Better than average”, “Average”, “Worse than average” and “Much worse than average” into rating points 4, 3 , 2, 1 and 0, respectively, for each model year of each SUV that provides the necessary data, an average of 2010 SUV reliability ratings can be obtained for the age ranges of 0 to 4 years, 2 to 6 years , 4 to 8 years and 6 to 10 years. These reliability GPAs provide a multi-year reliability summary for each SUV with sufficient data.

With these reliability GPAs, the ten most reliable sport utility vehicles can be selected for each of the age ranges.

By this selection, the 10 best SUVs in the 0-4-year-old age range, along with your 2010 reliability GPA, are:

Toyota Motor Corporation Lexus RX hybrid, a midsize SUV with a 2010 GPA of 4.00,
The V6 Toyota 4runner, a midsize SUV with a 2010 GPA of 4.00,
Tea Toyota fj cruiser, a midsize SUV with a 2010 GPA of 4.00,
Tea Kia Sportage, a small SUV with a 2010 GPA of 4.00,
Toyota Motor Corporation Lexus rx, a midsize SUV with a GPA of 3.75 in 2010,

The V6 Toyota highlander, a midsize SUV with a GPA of 3.75 in 2010,
Tea Honda Pilot, a midsize SUV with a GPA of 3.75 in 2010,
The 4 cylinder Toyota RAV4, a small SUV with a GPA of 3.75 in 2010,
Tea Honda CR-V, a small SUV with a GPA of 3.75 in 2010,
Tea Honda Element, a small SUV with a GPA of 3.75 in 2010.

Of the 10 most reliable sport utility vehicles in the 0-4 age range, Toyota Motor Corporation has 6, Honda Motor Company has 3, and Kia Motors Corporation has one.

And the 10 (11 for a tie) best SUVs in the 2- to 6-year-old age range, along with your 2010 reliability GPA, are:

Toyota Motor Corporation Lexus RX hybrid, a midsize SUV with a 2010 GPA of 4.00,
The V6 Toyota 4runner, a midsize SUV with a 2010 GPA of 4.00,
Tea Toyota fj cruiser, a midsize SUV with a 2010 GPA of 4.00,
The V6 Toyota highlander, a midsize SUV with a 2010 GPA of 4.00,
Tea Toyota Highlander Hybrid, a midsize SUV with a 2010 GPA of 4.00,

Tea Honda Pilot, a midsize SUV with a 2010 GPA of 4.00,
From Honda Motor Company Acura RDX, a small SUV with a 2010 GPA of 4.00,
Tea Honda Element, a small SUV with a 2010 GPA of 4.00,
Toyota Motor Corporation Lexus LX, a large SUV with a GPA of 3.75 in 2010,
Toyota Motor Corporation Lexus rx, a midsize SUV with a GPA of 3.75 in 2010,
The 4 cylinder Toyota RAV4, a small SUV with a GPA of 3.75 in 2010.

Of the eleven most reliable sport utility vehicles in the 2-6 year age range, Toyota Motor Corporation has 8 and Honda Motor Company has 3.

And the 10 Best SUVs in the 4-8 Year Old Age Range, along with your 2010 reliability GPA, are:

Toyota Motor Corporation Lexus rx, a midsize sport utility vehicle with a GPA of 4.00 in 2010,
The V6 Toyota 4runner, a midsize sport utility vehicle with a GPA of 4.00 in 2010,
The V6 Toyota highlander, a midsize sport utility vehicle with a GPA of 4.00 in 2010,
Tea Honda Pilot, a midsize sport utility vehicle with a GPA of 4.00 in 2010,
The 4 cylinder Toyota RAV4, a small SUV with a 2010 GPA of 4.00,

Tea Honda Element, a small SUV with a 2010 GPA of 4.00,
Toyota Motor Corporation Lexus LX, a large SUV with a GPA of 3.75 in 2010,
Nissan motor company Infiniti QX4, a large SUV with a GPA of 3.50 in 2010,
Tea Honda CR-V, a small SUV with a GPA of 3.50 in 2010,
Nissan Motor Company V6 Infiniti fx35, a midsize sport utility vehicle with a 3.33 GPA in 2010.

Of the 10 most reliable sport utility vehicles in the 4-8 year age range, Toyota Motor Corporation has 5, Honda Motor Company has 3, and the Infiniti division of Nissan Motor Company has two.

And the 10 best SUVs in the 6-10 year old age range, along with your 2010 reliability GPA, are:

Toyota Motor Corporation Lexus LX, a large SUV with a 2010 GPA of 4.00,
Tea Toyota land cruiser, a large SUV with a 2010 GPA of 4.00,
Toyota Motor Corporation Lexus rx, a midsize sport utility vehicle with a GPA of 4.00 in 2010,
The V6 Toyota 4runner, a midsize sport utility vehicle with a GPA of 4.00 in 2010,
The V6 Toyota highlander, a midsize sport utility vehicle with a GPA of 4.00 in 2010,

Tea Honda Pilot, a midsize sport utility vehicle with a GPA of 4.00 in 2010,
Nissan Motor Company V6 Infiniti fx35, a midsize SUV with a 2010 GPA of 4.00,
The 4 cylinder Toyota RAV4, a small SUV with a 2010 GPA of 4.00,
Tea Honda Element, a small SUV with a 2010 GPA of 4.00,
Tea Honda CR-V, a small SUV with a GPA of 3.75 in 2010.

Of the ten most reliable sport utility vehicles in the 6-10 year age range, Toyota Motor Corporation has 6, Honda Motor Company has 3, and the Infiniti division of Nissan Motor Company has one.

Tea Consistently more reliable SUVs, those that are among the 10 most reliable for all age ranges, are:

The V6 Toyota 4runner, a midsize SUV with a 2010 GPA of 4.00,
The V6 Toyota highlander, a midsize SUV with a 2010 GPA of 3.94,
Tea Honda Pilot, a midsize SUV with a 2010 GPA of 3.94,
Tea Honda Element, a small SUV with a 2010 GPA of 3.94,
Toyota Motor Corporation Lexus rx, a midsize SUV with a 2010 GPA of 3.88,
The 4 cylinder Toyota RAV4, a small SUV with a 2010 GPA of 3.88.

Of these 6 consistently reliable sport utility vehicles, Toyota Motor Corporation has 4 and Honda Motor Company has 2.

In the lists above, a sport utility vehicle is classified as small if its length is less than 183 inches, medium if its length is 183 to 192 inches, and large if its length is greater than 192 inches.