Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

NHTSA — Engine And Engine Cooling Problems


really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
1,700 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Acura MDX engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2009 Acura MDX:

Unsubscribe any time. We don't sell/share your email.

2009 Acura MDX Owner Comments

problem #2

Jan 092012

MDX 6-cyl

  • miles


This vehicle is only 2 years and 2 months old (bought in Nov. 2009), yet the battery keeps failing (and there were no lights left on after the engine was shut off, and nothing done out of the ordinary with the car on the 3 occasions this week that the "shut off" occurred). We've had to call Acura roadside assistance 3 times this week (week of Jan. 9th, 2012). Today is Jan. 10, 2012 and we had to be boosted this morning again. We eventually took it in to the manhattan Acura dealership today (1/10/12) and was told that the battery was, indeed, defective. We were also informed that others have come in to that location with the same issue (all Acura owners). Perhaps, this should be officially noted just in case there are plenty more with this experience.

- Monroe, NJ, USA

problem #1

Nov 202009


  • 3,400 miles
2009 Acura MDX with less than 4000 miles developed an issue with timing belt pulleys, timing belt and front part of engine.

- Naperville, IL, USA

Not what you are looking for?