Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2019 RDX.
As an SUV equipped with a 10-speed automatic transmission, the 2019 Acura RDX delivers EPA-estimated fuel economy of 21 city, 27 highway, and 23 combined mpg, with its engine requiring 5.0 quarts of 0W-20 oil. Yet, while these operational specifications outline a routine crossover, this model year represents a distinct reliability nadir, logging 431 total owner complaints alongside 5 recalls. Dominated by issues categorized simply as "Unknown or Other," the 2019 RDX sits as the highest-complaint year in the nameplate's 2007–2025 history—a stark contrast to the 2024 low of just 10 complaints—meaning researchers must approach this specific model year with heightened scrutiny regarding its overall dependability.
Fluid capacities, tune-up values and fuel economy at a glance.
Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.
From the factory this vehicle uses a BCI 48 · 650 CCA battery. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic (S10) |
| Overall length | 186.6 in |
| Overall width | 74.8 in |
| Overall height | 65.7 in |
| Wheelbase | 108.3 in |
| Curb weight | 4034 lb |
| Track (front / rear) | 64.2 / 64.6 in |
| Weight distribution (front / rear) | 57/43 |
| EPA city / highway / combined | 21 / 27 / 23 mpg |
| Drivetrain | 4-Wheel Drive |
| Recommended fuel | Premium Gasoline |
0–60 mph, quarter-mile, horsepower and torque from independent road tests.
Independent road tests for the RDX of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.
| Year | Trim / engine | 0–60 | ¼ mile | HP | Drivetrain |
|---|---|---|---|---|---|
| 2019 | A-Spec Package 2.0L Turbo I-4 | 6.40 sec | 14.80 sec | 272 hp | AWD |
| 2019 | A-Spec Package 2.0L Turbo I-4 | 6.60 sec | 15.20 sec | 272 hp | AWD |
| 2019 | Advance Package 2.0L Turbo I-4 | 6.60 sec | 15.10 sec | 272 hp | AWD |
| 2019 | Advance Package 2.0L Turbo I-4 | 7.10 sec | 15.50 sec | 272 hp | AWD |
| 2021 | A-Spec PMC Edition 2.0L Turbo I-4 | 6.40 sec | 14.90 sec | 272 hp | AWD |
| 2022 | A-Spec Advance 2.0L Turbo I-4 | 6.20 sec | 14.90 sec | 272 hp | AWD |
| 2023 | SH-AWD A-Spec 2.0L Turbo I-4 | 7.00 sec | 15.40 sec | 272 hp | AWD |
| 2025 | SH-AWD A-Spec Advance 2.0L Turbo I-4 | 6.70 sec | 15.10 sec | 272 hp | AWD |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 5.0 qt of 0W-20 engine oil, Acura All-Wheel Drive Fluid in the differential, Dot 3 brake fluid. Torque lug nuts to 80 ft-lbs. The firing order is 1-3-4-2.
| Automatic Transmission Fluid | ATF |
| Automatic Transmission Fluid Capacity | 5.1 |
| Automatic Transmission Fluid | ATF |
| Automatic Transmission Fluid Capacity | 4.5 |
| Brake Fluid | Dot 3 |
| Differential Gear Oil | Acura All-Wheel Drive Fluid |
| Differential Gear Oil Capacity | 1.76 qt |
| Engine Coolant | Acura Long Life Antifreeze/Coolant Type 2 |
| Crankshaft Position (CKP) Sensor Bolt(s) | 9.0 ft-lbs |
| Camshaft Position (CMP) Sensor Bolt(s) | 9.0 ft-lbs |
| Camshaft Bearing/Carrier Cap Bolts or Studs | 85.0 ft-lbs |
| Engine Coolant Temperature (ECT) Sensor Bolt(s) | 9 ft-lbs |
| Oxygen (O2S) Sensor Bolt(s) | 33.0 ft-lbs |
| Knock Sense (KS) Bolt(s) | 16.0 ft-lbs |
| Flex or Driveplate Bolts | 55.0 ft-lbs |
| Engine Flywheel Bolts | 55 ft-lbs |
| Differential Fill Plug | 35.0 ft-lbs |
| Differential drain Plug | 35.0 ft-lbs |
| Lug Nuts | 80 ft-lbs |
| Steering Track (Rod End) Bolts | 44.0 ft-lbs |
| Automatic Transmission Drain Plug | 32.0 ft-lbs |
| Front Wheel Hub | 242.0 Use new nut. ft-lbs |
| Rear Wheel Hub | 181.0 Do not re-use old hub nut ft-lbs |
| Cylinder Firing Order | 1-3-4-2 |
| Curb Idle Speed (No Load) | 720 rpm |
| Curb Idle Speed Variance (No Load) | 50 rpm |
| Curb Idle Speed (No Load) | 720 rpm |
| Curb Idle Speed Variance (No Load) | 50 rpm |
| Curb Idle Speed (Secondary Under Load) | 720 rpm |
| Curb Idle Speed Variance (Secondary Under Load) | 50 rpm |
| Spark Plug Manufacturer | Acura |
| Refrigerant | R1234yf |
| Refrigerant Capacity | 0.94-1.06 lbs |
| Standard BCI Group Number | 48 |
| Standard BCI Cranking Performance | 650 cca |
| Fuel Pump Pressure Minimum | 73.0 |
| Fuel Pump Pressure Maximum | 80.0 |
| Regulated Fuel System Pressure (With Vacuum) | 73.0-80.0 psi |
| Regulated Fuel System Pressure (Without Vacuum) | 72.5－79.8 psi |
| Engine Compression | 135 Minimum PSI. 29 Maximum Variation PSI. |
| Engine Oil Pressure | 14.5 |
| Intake Valve Lash | 0.00315 in |
| Exhaust Valve Lash | 0.00315 in |
| Minimum Pad Thickness | Front: 0.063; Rear: 0.079 in |
| Vented Rotor Minimum Thickness for Replacement | Front: 1.204; Rear: 0.315 |
| Variation from Parallelism Thickness Variation | 0.00059 |
| Maximum Rotor Runout | 0.0016 |
| 1 | 44 inch lbs., Step 2: 29 ft. lbs., Step 3: 120° | 44 in |
| 1 | 37 ft. lbs., Step 2: 90 degrees. Only if you are using a new pulley bolt or new crankshaft, tighten the bolt to 133 ft. lbs. with a torque wrench, loosen the bolt and tighten it to 37 ft. lbs. Tighten the pulley bolt an additional 90 degrees. | 37 ft. lbs |
| 1 | 26 ft. lbs., Step 2: 41°. 8 mm Bolts: 16 | 26 ft. lbs |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The 2019 Acura RDX represents the first year of a new generation, and its federal record shows it as the most problematic model year in the entire dataset, with 431 complaints and 5 recalls—both the highest figures recorded across all years from 2007 to 2025. This marks a sharp spike from the prior year's 75 complaints and 1 recall, and while the following 2020 model also had 5 recalls, its 338 complaints are lower, indicating a declining trend after the 2019 peak. The top complaint areas are "Unknown Or Other" (108), visibility/wiper issues (74), and engine problems (42), though the data does not specify root causes for these patterns. With 223 technical service bulletins—the second-highest in the record—the 2019 RDX clearly required extensive dealer intervention. Given the high complaint and recall volume relative to both earlier and later years, this is a model year to avoid unless you are prepared for above-average service visits; a later 2020 or 2021 RDX would be a more reliable choice.
All 431 complaints on record, top 8 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 2 of 5 campaigns on record for this vehicle.
Honda (American Honda Motor Co.) is recalling certain 2018-2019 Acura NSX, 2019 Acura RDX, RLX and RLX Sport Hybrid, 2018-2019 Honda Accord, Civic Hatchback, Civic Type R and HR-V, 2019-2020 Insight and 2019 Fit… Remedy: Honda will notify owners and dealers will replace the fuel pump assembly, free of charge. The recall began July 22, 2020. Owners may contact Honda customer service at…
Honda (American Honda Motor Co.) is recalling certain 2019-2020 Acura MDX, MDX Sport Hybrid, RDX, TLX, Honda Accord, Civic Hatchback, Insight, 2019 Acura ILX, Honda Accord Hybrid, Civic Coupe, Civic Coupe Si, Civic… Remedy: Honda will notify owners, and dealers will replace the fuel pump assembly, free of charge. Owner letters were mailed May 18, 2021. Owners may contact Honda customer service at…
Showing 5 of 223 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| B21673 | 2026-05-18 | Electrical System | Over The Air Update - Vehicles equipped with the System Updates application are capable… |
| B23-004 | 2025-10-17 | Structure | "Service Bulletin - A pop noise can occur from the rear roof area when turning into… |
| B25-049 | 2025-09-16 | Engine | Service Bulletin - Oil leak at the cam chain tensioner inspection cover due to and… |
| B19-053 | 2025-05-30 | Service Brakes | Service Bulletin - The front and/or rear brakes make a high-pitched squeal when the… |
| B19-053 | 2025-05-16 | Service Brakes | Service Bulletin - The front and/or rear brakes make a high-pitched squeal when the… |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.
Cross-vehicle references for the kinds of data on this page.
5.0 qt of 0W-20, per the factory manual.
NHTSA lists 5 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 21 city / 27 highway / 23 combined mpg.