2021 Acura RDX Electrical system Problems
- Complaints
- 10about this part
- Share
- 9%of 117 total for the year
- Median mileage
- 30,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the electrical system of the 2021 Acura RDX, 9% of the 117 complaints for this model year. Where a mileage was given, the median is 30,000 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“It was raining and I was sat at a stop light. The brakes started to slip a little no matter how much I pressed then all of a sudden the entire car started shutting down. Engine, Transmission, Power Steering, Lane Keep Assist, Collision warning, all the lights started flashing. The car was put into Limp mode.”
NHTSA complaint #11659951, filed 2025-05“The contact owns a 2021 Acura RDX. The contact stated that while operating the vehicle, the front headlights and instrument panel lights started blinking off and on. The vehicle was later towed to the local dealer, who diagnosed the vehicle and determined that the body control module had malfunctioned due to water intrusion from the moon roof seals. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 30,000.”
NHTSA complaint #11653202, filed 2025-04, 30,000 miles“AcuraLink App was used to attempt to remote start car while at a store, however, the app reported a failed notification and car was never started through the app and only turned on manually. Two hours later, when at home, the car remote started suddenly with no prompt while it was inside of a closed garage. Our dog heard the car go off and alerted us. Had he not heard it, the car would have been running in a closed garage putting us at risk for carbon monoxide poisoning. …”
NHTSA complaint #11666634, filed 2025-06“The Auto High-Beam system activates the high beams inappropriately during operation. The system triggers the high beams directly into the eyes of oncoming traffic and activates during early dusk conditions. The sudden, intense illumination blinds oncoming drivers. This creates an immediate glare hazard and significantly increases the risk of a head-on collision. I reported this specific failure to the authorized dealership on three separate occasions, engaging three distinct service advisors during the active warranty period. …”
NHTSA complaint #11737515, filed 2026-05“Infotainment system fails on occasions. Sceen goes completely blank causing distraction while driving. There is currently a recall for this issue for 2019-2020 RDX.”
NHTSA complaint #11713768, filed 2026-01Related service bulletins
- 11033180May 18, 2026Over The Air Update - Vehicles equipped with the System Updates application are capable of downloading and installing Over the Air System Updates. System Updates contain upgrades…
- 11012814Dec 18, 2024Service Bulletin - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the…
- 11008048Sep 18, 2024Owner Notification Letter - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the…
- 11005523Jul 30, 2024Service Bulletin - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the…
- 11005521Jul 30, 2024Dealer Message - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the Media Oriented…
- 10251896Mar 12, 2024Service Bulletin - 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…
- 10239706Jul 17, 2023Service Bulletin - The client may notice a loss of auto function, or no function, of the sunroof glass/sunshade due to a Motor-Control Unit error code in the clock frequency…
- 10238818Jun 27, 2023Service Bulletin - There is a popping or crackling from the speakers, a blank display, or no sound from the audio system due to a loose connection in the MOST bus network.
- 10232252Feb 23, 2023Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2022 MDXs & RDXs with a client complaint of the Check Engine Light (CEL) on & the DTC P0087…
- 10230596Jan 18, 2023Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2022 MDXs & RDXs with a client complaint of the Check Engine Light (CEL) on & the DTC P0087…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 5 | 17% |
| 2024 | 1 | 8% |
| 2023 | 7 | 29% |
| 2022 | 1 | 3% |
| 2021 | 10 | 9% |
| 2020 | 27 | 8% |
| 2019 | 39 | 9% |
| 2018 | 8 | 10% |
| 2017 | 18 | 23% |
| 2016 | 8 | 20% |
| 2015 | 8 | 2% |
| 2014 | 8 | 3% |
| 2013 | 7 | 4% |
| 2012 | 2 | 13% |
| 2011 | 3 | 19% |
| 2010 | 2 | 9% |
| 2008 | 3 | 9% |
| 2007 | 6 | 11% |
Other parts of the 2021 Acura RDX
31 complaintsEngine
23 complaintsBrakes
16 complaintsVisibility (wipers, defrost, mirrors)
15 complaintsTransmission and drivetrain
13 complaintsAir bags
11 complaintsBody and structure
10 complaintsVehicle speed control
7 complaintsForward collision avoidance
6 complaintsSeats
6 complaintsFuel system
5 complaintsSeat belts
5 complaints
← All problems reported for the 2021 Acura RDX
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology