general problems of the 2021 Acura RDX

Six problems related to electrical system have been reported for the 2021 Acura RDX. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 Acura RDX based on all problems reported for the 2021 RDX.

1 Electrical System problem

Failure Date: 06/12/2025

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.

2 Electrical System problem

Failure Date: 05/05/2025

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.

3 Electrical System problem

Failure Date: 01/01/2024

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.

4 Electrical System problem

Failure Date: 10/01/2023

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).

5 Electrical System problem

Failure Date: 10/30/2022

I have a 2021 Rdx. Was on the interstate moving at about 70 mph coming back from missouri. Raining. Lots of semis creating huge following misty, hard to see rain. Decided to accelerate to pass a couple. Car nearly stalled and acted like it had lost a cylinder's worth of power. Turned on hazards, slowed, pulled over and lifted the hood hearing all kinds of unusual noises. Shut the car off and restarted. All was well. Turned all lane-keeping, etc. Off including cruise. Drove the last 100 miles or so without incident. Called dealer and was told likely didn't pull a code. Don't worry and keep driving. Said to make sure front of car was clean. Duh!! I keep my ride spotless (unless driving in the rain). Called CA's Acura line. Absolutely no help. 2 different females had no idea what limp mode was. Read quite a bit since then finding out it could be the result of many things including problems that could damage the motor and/or tranny. Wow!!! had never heard of "limp mode" before. Nice that no info on this possible problem was anywhere in any user manual. Car has performed flawlessly ever since. So far, I guess the rain had interfered with the "radar" system and confused the computer. I'm thinking about buying a 40 year old car that doesn't have any of the modern computers etc. Later found info regarding TSB 20-053 which explains the problem and proposed solution. 06-26-2022 06:52 pm.

6 Electrical System problem

Failure Date: 05/26/2021

When using my apple phone in the car I cannot answer, hang up, talk using the hands free option at certain times.


Other Electrical System related problems of the 2021 Acura RDX

Electrical System problems
6
Body Control Module/bcm problems
1


RDX Service Bulletins
RDX Safety Recalls
RDX Defect Investigations