2019 Acura RDX Problems

What owners report

Owners of the 2019 RDX most often describe a sudden loss of power while accelerating, usually in wet weather, which they call "limp mode": the engine light flashes and the vehicle slows sharply until it is shut off and restarted. A second large group of complaints concerns the rear window glass shattering on its own, typically while the vehicle is parked or a door is closed. Other recurring reports include wipers and windshield glass, fuel pump failures that coincide with open recalls, and early brake noise.

1. 1
   Engine

   Sudden power loss / "limp mode" on acceleration

   • 91 complaints (21%)
   • median 9,979 mi at 1.0 yrs old (54 state mileage)
   • filed 2019–2026

   Owners describe pressing the accelerator to pass or merge and having power drop away, with the check engine light flashing and the vehicle slowing to 20–40 mph. Many say the condition appeared in rain or on wet roads, and in several cases shutting the car off and restarting it cleared the light and restored normal operation. Complaints mention dealers unable to reproduce the problem, or suggesting a moisture-related cause at the intake, and owners link it to a known condition rather than a recall. Mostly reported between roughly 5,000 and 35,000 miles, often during highway acceleration in wet weather.

   2 related service bulletins

   What to check: Ask whether the car has ever gone into reduced-power mode and whether any stored engine codes were checked. A service bulletin describes a moisture-related misfire condition and a software/diagnostic procedure, so ask whether that was performed.

   2 excerpts from owner complaints in NHTSA records

   “I was driving on the interstate at about 65 MPH. It was raining. I needed to accelerate quickly in order to avoid a car that was trying to merge into my lane. When I hit the accelerator, the car cut off. This caused me to loose speed and almost have an accident. I had to restart the car to get it back into drive.”

   NHTSA complaint #11373083, filed 2020-11, 32,000 miles

   “My brand new 2019 Acura RDX that had 9200 miles on it shut down on me on the freeway. It was raining and I pulled out to pass, going about 75 MPH, and it went into what I now know is limp mode and the engine light flashed on and off and the engine was making a different sound than normal. I had someone tailgating me, so I am lucky it didnt cause an accident. Got pulled over and called the dealership and they said it needed to come in. …”

   NHTSA complaint #11299118, filed 2020-01, 9,200 miles
2. 2
   Visibility (wipers, defrost, mirrors)

   Rear window glass shatters without impact

   • 179 complaints (41%)
   • median 63,000 mi at 5.3 yrs old (15 state mileage)
   • filed 2020–2026

   Owners report the rear hatch glass breaking while the vehicle sits parked, or right after a door or the hatch is closed, with no object striking it. Some had the glass replaced and say it broke again later; others were told by a dealer it is a known issue tied to a service bulletin, and at least one report notes the VIN was not covered. Complaints describe glass in the cargo area and the need to have the window replaced. Reported across a wide mileage range, from roughly 30,000 to over 80,000 miles, usually while parked.

   3 related service bulletins

   What to check: Inspect the rear glass and defroster grid for prior replacement, and ask whether the vehicle had the rear glass bulletin applied. Note that a replacement window does not guarantee the break will not recur.

   2 excerpts from owner complaints in NHTSA records

   “The contact owns a 2019 Acura RDX. The contact stated that while the vehicle was parked, the contact exited the vehicle, and the rear glass shattered without impact. The contact stated that a Police Report was filed. The vehicle was taken to an independent mechanic and was repaired. The manufacturer was notified of the failure. The failure mileage was 126,000.”

   NHTSA complaint #11716324, filed 2026-02, 126,000 miles

   “The contact owns a 2019 Acura RDX. The contact stated that while his vehicle was parked inside his garage, the rear tailgate window shattered. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was 47,936. The consumer stated car was parked in the driveway under he surveillance camera.”

   NHTSA complaint #11509372, filed 2023-02, 47,936 miles
3. 3
   Fuel system

   Fuel pump failure — stalling, hard starting, fuel smell

   • 28 complaints (6%)
   • median 40,000 mi at 5.0 yrs old (7 state mileage, few)
   • filed 2020–2026

   Owners describe stalling or failure to restart, engine hesitation, difficulty starting and a gasoline odor, with some complaints filed because the recall repair part was not yet available. Dealers in several cases diagnosed a failed fuel pump and replaced it; complaints reference the open fuel pump campaigns by number. Because these vehicles fall under the low-pressure fuel pump recalls, many owners were waiting on parts. Mostly reported between about 40,000 and 82,000 miles.

   Recall 23V858000Recall 21V215000Recall 20V3140002 related service bulletins

   What to check: Check whether the low-pressure fuel pump recalls (21V215000, 23V858000) were completed for this VIN, and ask for the repair paperwork; listen for hard starting and any fuel smell.

   2 excerpts from owner complaints in NHTSA records

   “The contact owns a 2019 Acura RDX. The contact stated while driving approximately 65 MPH, the instrument cluster showed several warning lights. The contact stated that the vehicle stalled, and the contact was able to pull off the roadway. The contact was unable to restart the vehicle, and had the vehicle towed to a dealer. The dealer diagnosed the vehicle and determined that the fuel pump had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. …”

   NHTSA complaint #11609762, filed 2024-08, 70,000 miles

   “The contact owns a 2019 Acura RDX. The contact stated that while at a stop light, the vehicle stalled. The vehicle failed to move or shift into neutral(N). The vehicle was towed to the local dealer where it was diagnosed that the fuel pump motor needed to be replaced. The vehicle was repaired. The manufacturer was notified but no additional assistance was provided. The contact stated that the failure was related to NHTSA Campaign Number: 21V215000 (Fuel System, Gasoline). The failure mileage was approximately 40,000.”

   NHTSA complaint #11471809, filed 2022-06, 40,000 miles
4. 4
   Brakes

   Brake noise and auto brake-hold releasing

   • 16 complaints (4%)
   • median 8,500 mi at 1.0 yrs old (10 state mileage)
   • filed 2019–2024

   Owners describe brake squeal at nearly every stop that returned after multiple dealer pad replacements, and some say they were told it is a characteristic of the model. Separately, complaints describe the auto brake-hold releasing on its own when the engine restarts from idle stop at a light, letting the car creep forward without the driver's input. Some also report an unresponsive brake pedal at low speed. Reported from a few thousand to about 23,000 miles, often at low-speed stops and in stop-and-go traffic.

   What to check: Drive at low speed with the windows down and listen for brake squeal, and test the auto brake-hold with the idle-stop system engaged at a standstill to see whether the brake releases when the engine restarts.

   2 excerpts from owner complaints in NHTSA records

   “2019 new RDX! The car brakes sound horrible everyday! I have been promised over 9 months its being worked on. I've had them changed 3 time by the dealer and still squeaks every time I stop. I'm fearing for my safety because they cannot fix the problem and I feel they will fail soon. It's a very well known problem if you google 2019 and 2020 RDX brake problems they gave me a $300 visa card for my inconvenience!!! I don't know who to turn to anymore because the company doesn't care to fix this 2 year old model's problem”

   NHTSA complaint #11310258, filed 2020-02, 5,000 miles

   “When using auto brake hold when stopped in traffic and if engine auto start stop is engaged, if the auto start stop turns the engine back on there are times when the auto brake hold releases by itself and car starts moving forward. This could be a safety issue in case there is a pedestrian in the cross walk or if the driver does not hit the brake pedal immediately could hit the vehicle in front. I do not see Acura having any recall to fix this. …”

   NHTSA complaint #11310261, filed 2020-02, 23,000 miles

Buying note. These vehicles span a wide range of owner complaints, but the most consequential by far are the reduced-power episodes and the fuel pump recalls, so check recall completion and ask about any history of stalling or limp mode before buying. A pre-purchase inspection covering the rear glass, wipers and brakes is also worthwhile given how often those come up.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.