I just wasted far too much time delving into the GX550 maintenance schedule and associated costs and creating a spreadsheet. I found an 82-page warranty and services guide online at this link:
2024 GX 550 Warranty and Services Guide
I boiled the 82-page guide down to just the 24-page Scheduled Maintenance Log portion of the overall guide and it's attached to this post.
I spoke with service advisors at two local dealerships regarding pricing. They gave me their best estimates for the various scheduled maintenance pricing (neither dealership has even done the first 5,000 service on a new GX550 yet).
The most basic service, which is the first 5,000-mile service where they just rotate your tires and perform a basic inspection, top up fluids, etc. will cost about $250. The first 5,000-mile service is free.
Then the next most basic service is the 10,000-mile service with rotating tires, basic inspection, fluid top-up, and change the oil & filter. This service will cost about $500. The first 10,000-mile service is free.
Then there are various other service items that kick in such as prop shaft lube & tighten, extra inspection, and smart key battery replacement at 15k miles, 45k miles, and 75k miles. Spark plugs get replaced along with the basic oil service at 40,000 miles. Ballpark cost is about $750 for these services.
The major service intervals are the 30k-mile services which include rotating tires, extra inspection, oil & filter change, prop shaft lube & tighten, cabin filter, engine air filter, smart key battery change, brake fluid flush, and what they call the 4x4 service which includes changing the differential fluids including the center diff or transfer case. They don't have a cost for this set yet but one service advisor quoted the GX460 service cost of about $1900.
Here's how I broke it down for what I expect to see for the first 75k miles or 6 years (assuming 12,500 miles per year). I'm looking at these numbers because I paid $3,795 for pre-paid maintenance up to 75k miles or 6 years. Right now I'm averaging more like 15k miles per year but I'm planning on buying another car to share daily driving duties.
| Mileage | Months | Years | Service | Cost |
5,000 | 6 | 0.5 | Rotate tires, basic inspection | free |
10,000 | 12 | 1 | Rotate tires, basic inspection, oil & filter | free |
15,000 | 18 | 1.5 | Rotate tires, extra inspection, prop shaft lube & tighten, smart key battery | $750 |
20,000 | 24 | 2 | Rotate tires, basic inspection, oil & filter | $500 |
25,000 | 30 | 2.5 | Rotate tires, basic inspection | $250 |
30,000 | 36 | 3 | Rotate tires, extra inspection, oil & filter, prop shaft lube & tighten, cabin filter, engine air filter, smart key battery, brake fluid, 4x4 service differentials | $2,000 |
35,000 | 42 | 3.5 | Rotate tires, basic inspection | $250 |
40,000 | 48 | 4 | Rotate tires, basic inspection, oil & filter, spark plugs | $750 |
45,000 | 54 | 4.5 | Rotate tires, extra inspection, prop shaft lube & tighten, smart key battery | $750 |
50,000 | 60 | 5 | Rotate tires, basic inspection, oil & filter | $500 |
55,000 | 66 | 5.5 | Rotate tires, basic inspection | $250 |
60,000 | 72 | 6 | Rotate tires, extra inspection, oil & filter, prop shaft lube & tighten, cabin filter, engine air filter, smart key battery, brake fluid, 4x4 service differentials | $2,000 |
65,000 | 78 | 6.5 | Rotate tires, basic inspection | $250 |
70,000 | 84 | 7 | Rotate tires, basic inspection, oil & filter | $500 |
75,000 | 90 | 7.5 | FINAL PRE-PAID MAINT SERVICE: Rotate tires, extra inspection, prop shaft lube & tighten, smart key battery | $750 |
| SUBTOTAL: | | | | $9,500 |