2019 Acura RDX engine problems
90 of the 438 complaints owners filed with NHTSA about the 2019 Acura RDX name the engine (NHTSA’s “Engine” heading — the engine and its cooling system). Filed under the same heading: 25 manufacturer bulletins. Every figure below is a document in a federal file, linked; none is a failure rate, and none is a verdict on any one car.
What owners filed about the engine
Source: NHTSA complaint database0 of the 90 reports a crash · 0 a fire · 0 injuries. Self-reported, unverified.
Filed per year: 2018: 1 · 2019: 26 · 2020: 19 · 2021: 15 · 2022: 6 · 2023: 6 · 2024: 5 · 2025: 5 · 2026: 7
Half of the 50 owners who gave an odometer reading reported the engine problem between 4,000 and 18,000 miles. A median of reports, not the life of a part.
438 complaints in all about the 2019 Acura RDX, 7 filed in 2026. The whole picture, every system →
Counts are owner reports to NHTSA, not verified defects, and scale with how many of these were sold; nothing here is a rate. NHTSA groups complaints coarsely, so “Engine” means the same area of the vehicle, not one fault.
Across model years: Acura RDX engine problems, every year on file →
In owners’ own words
Source: NHTSA complaint databaseFiled with NHTSA by the people who own these cars, about the engine. Quoted as written, with anything identifying removed; unverified reports — what was said, not a finding that it was true.
After leaving work on may 16, 2019, I accelerated from a stop light onto highway 1 in san luis obispo. Immediately, the car stalled, lost all power, and a warning light illuminated stating "AWD malfunction, AWD not available." I pulled off the road, turned the car off. I re started a couple minutes later, and made it home.
While driving on a 2 lane highway on may 25, 2019, I attempted to pass a slower moving vehicle by flooring the gas to overtake them, and crossing the hashed highway line. I was driving in an area where the road undulated, so passing was only legal in stretches where the road was flat with distant visibility.
My Acura has "stalled" twice now while passing (once at about 4800 miles and the other at about 5600 miles on odo). Both times the car was in cruise control and lane keep assist and traveling on a highway at about 60mph. Both times I was overtaking a large vehicle that was to the right of me.
A couple of days ago, onapril 19th, my wife and I were driving throughcolumbus, ga. It was around 7:00 AM and raining. We had been driving about 1 1/2 hours andwe were only going around30 MPH when I accelerated to pass a dump truck. The 2019 Rdx (6000 miles) started accelerating and then lost all power.
I AM submitting this ticket to document a hazardous scenario that I have experienced two times since purchasing my brand new 2019 Acura Rdx. Incidents occurred while driving in ohio and pennsylvania on cool days (ambient temperatures between 30 and 50 deg fahrenheit), with and without rainfall.
What is on file about the engine
Source: NHTSA recalls, investigations and manufacturer communications25 manufacturer bulletins filed under this heading
- B25-049 Service bulletinSep 17, 2025
- Service Bulletin - Oil leak at the cam chain tensioner inspection cover due to and insufficient sealant adhesion on the inspection cover.
The 1 newest are listed; every one is on the model year’s page. Quote the document number at a service desk — it is a diagnosis the maker has already written down.
Trouble codes named on this system
P0171 P0174 P219A P061B P0300 P0301 C1555 P0302
Codes a bulletin or an owner’s complaint about the 2019 Acura RDX names on this model year; a code with a record of its own links it.
Other systems with a record on the 2019 Acura RDX
Source: the same files- visibility and wiper problems 113 complaints
Common questions
Source: NHTSA complaint database, recalls and manufacturer communicationsAre engine problems common on the 2019 Acura RDX?
They are documented: NHTSA holds 90 owner complaints naming the engine on this model year (21% of everything owners filed about it), and 25 manufacturer bulletins are filed under the same heading. Whether it is a problem on one particular car is a diagnosis, not a count, and a count says nothing about how many were sold.
Is there a recall for the engine on the 2019 Acura RDX?
No recall campaign is filed under this heading for this model year (there are 5 filed under other headings). A bulletin is not a recall: it carries no federal duty to repair for free.
When do engine problems show up on the 2019 Acura RDX?
Owners who gave an odometer reading reported it at a median of 8,000 miles; half of them between 4,000 and 18,000. That is when reports cluster, not the life of a part.
What does NHTSA's "Engine" heading cover?
The engine and its cooling system. Owners choose the heading when they file, so it says which area of the vehicle the complaint is about, not which part failed.