2019 Acura RDX · symptom sheet
Check engine light or misfire
- 36owner reports
- 13,500median miles
- 0involved a crash
Newest report Jul 6, 2026 · checked Oct 2, 2026
139 of the 438 complaints on this car are about the engine. 36 of those describe misfire.
Tick what matches of 36 reports
Misfire on other RDX years
No other RDX model year has enough reports of misfire for a sheet of its own. See every RDX year.
What this problem usually is
These reports start with the check engine light. Many describe the engine running rough or shaking at idle, a P0300-series code, or a catalytic converter code. A worrying number say the light was flashing. Owners often list ignition coils or spark plugs already replaced, and the light coming back afterward.
What got replaced
Few of these reports name the part that was replaced.
Recalls and investigations
3 recalls on the engine cover the 2019 model year. A recall on the same system isn't always the same failure, so read the defect text.
The fuel pump inside the fuel tank may fail.
The low-pressure fuel pump inside the fuel tank may fail.
The low-pressure fuel pump inside the fuel tank may fail.
All 5 recalls on the 2019 Acura RDX, with the owner complaints on each recalled system
When it happens
The middle half of failures fell between 3,500 and 25,400 miles, from the 18 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 5 service bulletins or notices for the 2019 Acura RDX that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
The MIL is flashing with a loss of power. This is most common in hot, humid regions, or after a period of rainfall. Humid air within the intake passage may condense and accumulate moisture during steady driving which enters the engine and may cause a misfire ...
Under certain circumstances, the vehicle may experience driveability concerns. This may result in the following DTCâs to set: ⢠P0300 (Random Misfire Detected), ⢠P0301 (No. 1 Cylinder Misfire Detected), ⢠P0302 (No. 2 Cylinder Misfire Detected), ⢠...
Due to swelling of the fuel pump motor impeller, the fuel pump may seize and stop working. If this occurs, the check engine light may be displayed with DTC P0087 (Fuel Rail Pressure Too Low) stored, the engine may not start, or the engine could stall while ...
American Honda Motor Co., Inc. (AHM) is searching for certain 2016-2020 MDXs, RDXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), ...
1 more on the 2019 Acura RDX page.
What owners wrote
“Head Gasket failure. Design failure there are grooves holding coolant on the block making the coolant leak into cylinders heads”
Filed Jul 6, 2026
“There was head gasket failures around cylinders 2 and 3. This allows small amounts of coolant to leak into the engine, causing a distinct startup sputter or a choppy shudder as turbo boost climbs. This is a reoccurring issue with 2019 Acura RDX the vehicle ran hot while driving and was instructed to turn the vehicle off also the check engine light began to flash on and off.”
Filed Jul 6, 2026
“My RDX A-Spec experienced premature head gasket failure and suspected turbocharger related issues at low moderate mileage. Vehicle shows coolant loss and overheating/midfire symptons, rough idle. Im concerned this May be related to known Honda/Acura 2.0 turbo engine defects causing unsafe and costly engine damage.”
Filed May 21, 2026
“Vehicle was stolen within 15 minutes due to a weak door lock cylinder on the driver's door. Once the robber was inside they used a scanner yo bypass the weak security system and erased all key fobs”
Filed Jan 10, 2026
Should you keep driving it?
This page can't tell you that. 0 of 36 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Which lights mean pull over now? Warning lights by color and urgency
Other problems on this car
- Rear window shatters or explodes 177 reports
- Windshield cracks or distorts 98 reports
- Engine stalls or loses power while driving 59 reports
- Infotainment, screen or backup camera fails 38 reports