Owners have filed 8 complaints on the Acura SLX, covering 1996–1999. The system named most often is Engine And Engine Cooling (3 reports). Worst years by volume: 1998, 1999, 1996; cleanest: 1996, 1999, 1998. On average the car was 4.6 years old when the problem happened.
What breaks on Acura SLX
Grouped by the system owners named — percentages are shares of all 8 SLX complaints. Open any row for the full reports in owners' own words.
Engine And Engine Cooling 3 Read
Consumer stated she heard knocking and a loud pinging noise coming from the engine. She then pulled over and her husband checked the vehicle and saw that the oil was empty although she had an oil change before the trip. All of the oil spilled from the engine. Engine had blown. *ak *sc
In june of 2003, we took our 1998 acura slx w/45k miles on it into stevens creek isuzu dealership for a major service and to check out the "pinging/grinding" noise that we had been hearing for a long time. We were told they couldn't duplicate the noise. In june 2004, we took it to the reno isuzu for an oil change and…
My 1998 acura slx, with 122,000 miles, requires a new engine. The car developed a loud slapping noise and was diagnosed by 2 mechanics as a broken piston skirt. I was told that this is a common issue with these cars - a result of a mismatch between the isuzu engine and the acura transmission
Tires 2 Read
Tires were in good shape, complete seperation of tire wall without any warning. Outside temp. Approx . 53 degrees. (DOT number: elmtcll239 tiresize: p245/70r16)
Unable to steer straight line at 70 mph 95 degrees, wanders over road, okay when tires cold. *ak( DOT number: cll417 tire size: p245/70r16 )
Fuel System 1 Read
The quick disconnect gas tank connection came loose on the highway. Driver is unaware of leak until made aware of it by someone else
Vehicle Speed Control 1 Read
Throttle sucked to the ground and would not release when brakes applied, when emergency brake was extended
Service Brakes 1 Read
The contact stated there is brake fluid leakage and stopping distances were increased as a result. There is a NHTSA recall, # 97V092002, regarding the service brakes hoses and lines. The vehicle has the same problems as indicated in the recall; however it is not included in the recall due to the VIN. The vehicle was…
SLX years to avoid — and the clean ones
Complaints per model year. More reports usually means more cars on the road as well as more trouble, so read the crash and fire columns alongside the count.
| Model year | Complaints | Top system | Crashes | Fires |
|---|---|---|---|---|
| 1999 | Tires | — | — | |
| 1998 | Engine And Engine Cooling | — | — | |
| 1996 | Service Brakes, Hydraulic | — | — |
The same model year, different builds
Every complaint carries the first 11 characters of the VIN — plant, year, body and engine. That is a production series, and complaints are spread across them very unevenly.
| Measure | Value |
|---|---|
| Distinct production series | 8 |
| Average complaints per series | 1 |
| Worst single series | 1 complaints |
| Average age at failure | 4.6 years |
A model average of 1 hides a worst series at 1. Enter a VIN above to see the numbers for that exact build instead of the model as a whole.
Owners reported these. Find out if yours is one of them.
- Complaints matched to the exact production run, not just the model
- What the car is worth given what tends to fail on it
- The original window sticker and factory options
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How we count
Every figure here comes from complaints owners filed with NHTSA — 1,100,006 of them, covering 1,982 models built between 1981 and 2026.
A complaint is an unverified report: someone wrote down what happened to their car. It is not a confirmed defect and not a recall. What makes the volume useful is the pattern — when thousands of owners of the same build describe the same failure, that is a signal no marketing brochure will give you.
Two things we do that the source does not. First, we compute the age of the car at the moment of failure from the incident date and the model year. Second, we group complaints by the first 11 characters of the VIN — the production series — so a bad plant run does not disappear into a model-wide average.
Frequently asked questions
What are the worst years for the SLX?
By complaint volume, 1998, 1999, 1996 drew the most owner reports. Bear in mind that popular years put more cars on the road, so check the crash and fire columns too.
Which SLX years are the cleanest?
1996, 1999, 1998 have the fewest complaints on file. For recent years that can simply mean the cars are young.
How many complaints does the Acura SLX have?
8 owner complaints filed with NHTSA, covering 1996–1999. Of those, 0 describe a crash and 0 a fire.
Are these complaints verified?
No. They are unverified reports from owners. NHTSA publishes them as filed and investigates only a fraction. The value is in the pattern, not in any single report.
Can I check complaints for one specific car?
Yes — enter its VIN above. We match the first 11 characters, which identify the plant, year, body and engine, so you get complaints on that exact production series rather than the whole model.