There are 5 owner-reported electrical system complaints for the 2021 Acura RDXin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
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. I have done no other reporting, but I did look this up and found threads online about the same issue and was recommended to report here. There were no other warnings or messages to say that the car turned on.
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.
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.
Acura RDX 2021.Faulty seat weight sensor front passenger seat. My wife is petite, [XXX] " and weighs [XXX]. When she sits in front passenger seat, at times, the seat weight sensor doesn't register that she's sitting in the seat and the air bag is not engaged. intermittently, the SRS light illuminates but many times it doesn't. I've taken the vehicle into the dealer (Chevy Chase Acura, Bethesda, MD) and they say there is nothing they can do when the SRS light is not on. I've brought the vehicle into the dealership several times. They say that parts are limited and not generally available and are expedited only when the SRS light is illuminated. I've called and spoken with American Honda Customer service and they refuse to help stating the same thing the dealer says. But this is definitely a safety issue. NHSTA Recall # 24V-064. Service Bulletin # 24-015. Please help. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
When using my apple phone in the car I cannot answer, hang up, talk using the hands free option at certain times
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026