Lexus GX - Problems, Statistics, and Analysis

Lexus GX owners have reported a total of 204 problems for their cars built in the 22 model years listed in the chart below. The chart shows the number of problems reported across all service years for each given model year of the Lexus GX. The 2004 Lexus GX cars have the most problems reported (26 problems).

Table 1. Total number of problems by model year for Lexus GX

Model Year	Number of Problems
2025 GX	14
2024 GX	23
2023 GX	5
2022 GX	8
2021 GX	1
2020 GX	3
2019 GX	2
2018 GX	2
2017 GX	6
2016 GX	3
2015 GX	3
2014 GX	22
2013 GX	13
2012 GX	5
2011 GX	15
2010 GX	9
2008 GX	3
2007 GX	18
2006 GX	12
2005 GX	4
2004 GX	26
2003 GX	7

🔍 Common problems of Lexus GX

The following chart shows the 22 most common problems for Lexus GX cars. The number one most common problem is related to the vehicle's equipment (34 problems). The second most common problem is related to the vehicle's structure (28 problems).

Table 2. Common problems of Lexus GX

Problem Category	Number of Problems
Equipment	34
Structure	28
Air Bag	18
Electrical System	17
Service Brakes	15
Suspension	14
Engine And Engine Cooling	13
Power Train	12
Visibility	9
Other Fuel System	7

Vehicle Speed Control	6
Electronic Stability Control	6
Forward Collision Avoidance	5
Steering	5
Tire	4
Lane Departure	3
Wheel	2
Seats	2
Unknown Or Other	1
Traction Control System	1
Exterior Lighting	1
Back Over Prevention	1

📉 Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Lexus GX of an older model year to newer model years since older vehicles have been in service longer and thus are expected to have more problems. In order to compare the reliability across GX model years, we use the PPMY index which is defined as the problems reported per thousand vehicles per Year. A smaller PPMY index indicates greater reliability of the given model year cars.

PPMY = P / S / Y * 1000,

where P = total problems reported during the life of a Lexus GX model year; S = total units sold of the model year; Y = years since the debut of the model year (the age of the vehicle).

The results are shown in Table 3.

Table 3. Use PPMY Index to Compare Reliability Across GX Model Years

GX Model Year	Problems	Sales [1]	Vehicle Age	PPMY Index
2022	8	31,282	4	0.06
2021	1	34,115	5	0.01
2020	3	23,285	6	0.02
2019	2	27,718	7	0.01
2018	2	26,451	8	0.01
2017	6	28,657	9	0.02
2016	3	25,251	10	0.01
2015	3	24,600	11	0.01
2014	22	20,294	12	0.09
2013	13	12,471	13	0.08
2012	5	9,799	14	0.04
2011	15	12,637	15	0.08
2010	9	13,011	16	0.04
2008	3	22,523	18	0.01
2007	18	22,650	19	0.04
2006	12	28,995	20	0.02
2005	4	27,260	21	0.01
2004	26	43,789	22	0.03
2003	7	22,986	23	0.01

📊 Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Lexus GX is to use the total number of problems reported during the vehicle's first year in service, as shown in the Table 4.

Table 4. Number of problems in vehicle's; first service year

Model Year	Problems Reported
2025 GX	9
2024 GX	5
2023 GX	3
2022 GX	3
2014 GX	6
2013 GX	3
2012 GX	3
2011 GX	4
2010 GX	4

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