Steering rack, gear or tie rod failure on the 2008 GMC Acadia
When steering rack, gear or tie rod failure gets reported
Owners of the 2008 GMC Acadia report steering rack, gear or tie rod failure at a median of 70,000 miles. A quarter of the reports come in before 45,000 miles and a quarter after 80,000 miles, from 24 reports that carried an odometer reading.
A part like this is normally expected to survive 98,000 miles. It is the 14th most-reported problem on this model year.
The mileage distribution
The reported range runs from 30,000 miles at the tenth percentile to 120,000 miles at the ninetieth, a spread of 89,750 miles across the middle 80% of reports.
When the reports scatter this far, the mileage is telling you about how these cars were driven more than about the part itself.
17% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 28,000 miles | 43,602 miles | 70,000 miles | 81,259 miles | 117,750 miles |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Putting it right typically runs $700–$2,600 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 9 model years of this car. It shows up earliest on the 2007, at a median of 35,000 miles, and latest on the 2012 at 75,000 miles.
By volume the 2009 carries the most reports, with 42; the 2008 has 25. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
Power steering fails on my 2008 gmc acadia. 12/9/09- power steering fails as I get off the highway in greenwich, ct. Almost crash. 12/10/09 - drop car at local service station since my thought is that it just need steering fluid. 12/10/09- service station manager calls and tells me power steering pump shot, and rack and pinion leaking. 12/10/09- car towed to minchin gmc in stamford ct. They provide rental car from enterprise. 12/10/09- call late afternoon looking for an update. Told 'tech is looking at it now.' I ask for a call back. No call 12/12/09- call dealer. Leave detailed message. Ask for a call back. No call. 12/14/09- call dealer. Speak to service. I am told tech is looking at it. Which I thought was done. Ask for a call back. No call. 12/15/09 call dealer. Speak to service. Am told waiting for a part. Ask for a call back on part availability. No call back. Left another message with main v- mail, detailing how no one has called me back. No call back. 12/16/09- call dealer. Speak to service. Told tech is out to lunch but the part that has to come from california or canada. Finally they call back. I am told that the part…
Whining while driving and clanking noise while going over bumps-was told the whining was the power steering, and needed the power steering pump to be changed. I was told the clanking noise was due to a problem with the rack and pinion. Both are directly related. I was told that many people are having problems with the rack and pinion, but gmc would not fix the problem right now, it was a problem that's "on hold." *tr
I took my 2008 gmc acadia to the gm dealership to find out why my power steering is stiff when I turn left or right. It just started to happen 2 weeks ago. I have approximately 44,000 miles on it and bought it brand new. The warranty is now up and the dealer said it needs the steering rack replaced for $800. This car is fairly new and I can't believe I already need to pay for this to be fixed. I found that many gmc acadia owners have had similar problems, but no recall has been set by gm. *tr
Also reported on the 2008 GMC Acadia
Other powertrain problem
Complete transmission failure
Other engine problem
Sunroof failure or glass breakage
Airbag warning light or occupant sensor fault
Other electrical problem
How far this goes
Complaints are voluntary, so 25 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does steering rack, gear or tie rod failure happen on the 2008 GMC Acadia?
Across 24 owner reports that included an odometer reading, half were filed by 70,000 miles. A quarter were filed before 45,000 miles and a quarter after 80,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is steering rack, gear or tie rod failure on the 2008 GMC Acadia?
25 reports have been filed with NHTSA, about 0.5 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed