100% Free

No Scanner Needed

Carly logo
Prices

ErnFis

Unpredictable Transmission Shift and Warning Light in 2021 Nissan Qashqai: Seeking Advice

Hey folks! I'm experiencing some issues with my 2021 Nissan Qashqai, Gasoline engine with around 52944 KM on the odometer. Recently, my transmission seems to be acting up, shifting unpredictably, plus I've got a mysterious warning light on my speedometer. I'm suspecting a fault with the parking position switch for auto gears. Had a rough time with my last mechanic, so I'm a bit on edge about it. Does anyone have similar trouble or get their car fixed for an issue like this with their mechanic? Any insight would really help out! Cheers.

(Translated from German)

Summary of the thread

A 2021 Nissan Qashqai is experiencing unpredictable transmission shifts and a warning light on the speedometer. The suspected cause is a fault with the parking position switch for auto gears, but a similar issue in another vehicle was traced to a faulty Transmission Control Unit (TCU). The TCU, which controls transmission shifts, can cause erratic behavior if malfunctioning. The suggested solution is to have a trusted mechanic check and possibly reprogram the TCU, which resolved similar issues in another vehicle without requiring a full replacement.

Did this summary help you solve your problem?

4 comment(s)

AugSchm

Hey, I actually had a somewhat similar problem with my 2018 Nissan Juke not too long ago. Around 56k KM, my transmission started acting all funny, not shifting smoothly, and I also had this weird warning light. Turned out, it wasn't the parking position switch causing the issue, but the Transmission Control Unit (TCU) was faulty. The TCU is basically the brain of the auto transmission, controlling when and how it shifts. If it's faulty, it can send incorrect signals and cause erratic shifting, hence the unpredictable behavior you're seeing. You mentioned the warning light, and that was the same scenario with me. It's basically the car telling you there's something wrong with the transmission system. It can be a serious issue as it directly affects the performance and safety of your car. So, I'd suggest you discuss this with a trusted mechanic and get the TCU checked. Now, to ease your worry a bit, the fault may not necessarily lead to a full replacement. My mechanic was able to fix the problem by updating and reprogramming the TCU. But of course, every case can be different. Anyway, hope this helps, and your car gets back to running smoothly soon. Best of luck!

(community_translated_from_language)

ErnFis (community.author)

Hey there, Thanks for the insight! Never thought about the TCU being the culprit but it makes sense. I'm actually relieved it might not need a full replacement. Just wondering though, do you remember approxily how much that set you back? Also, has everything been smooth sailing with your Juke since the repair or have other issues popped up? Appreciate your help!

(community_translated_from_language)

AugSchm

Hey, Yeah, I totally get you. When it comes to car troubles, there's always that looming anxiety of cost - it stings, I know! To fix the TCU, it was a cool 1000 Euro. I know, quite a chunk isn't it? But compared to a full replacement, it was a bit of a relief. As far as my Juke is concerned, it's like it got a new lease on life since the repair. No more crazy shifting and stubborn warning lights, and yeah, that parking position switch issue you were concerned about, gone. Trust me, I had concerns too, but the fix pretty much cleared things up. As of now, it feels like cruising on a smooth highway, absolutely no problems at all, fingers crossed it stays that way! So, give it a shot. Bring your car to a good mechanic and get that TCU checked. It's a fair bet, isn't it? Hang in there, and let's hope your Nissan gets back on the road perfectly soon! Cheers!

(community_translated_from_language)

ErnFis (community.author)

Hey, I can't begin to appreciate how much you put my mind at ease! A thousand Euro isn't a small amount, but compared to what I had in mind, it's definitely manageable. It’s really assuring to hear how well your Juke is doing after TCU reprogramming, gives me hope for my Qashqai. I am going to make an appointment with a reliable mechanic right away to get this issue checked. Here's hoping it's nothing too drastic and it gets cleared up soon, fingers crossed! I'll definitely update here once it's all sorted out. Thanks again for taking the time to help me out! Your experience and advice have been invaluable. Take care and wish me luck! Cheers!

(community_translated_from_language)

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

NISSAN

community_crosslink_rmh_model

QASHQAI