Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2014 Chevrolet Impala owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2014 Chevrolet Impala. The contact stated that while operating the vehicle, the side mirror blind spot detection system malfunctioned, and the warning light blinked constantly and blinked while no oncoming vehicle was present. The contact stated that the failure occurred on both the driver's side and passenger's side mirrors. The contact stated that while the failure occurred the electronic cluster also malfunctioned, and the doors and trunk lid would not always open, and the vehicle would not always start immediately. The vehicle was taken to the local dealer who replaced an unknown module kit. The contact stated that the vehicle had been repaired for the same failure on three previous occasions. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 40,000.
The contact owns a 2014 Chevrolet Impala. The contact stated that the side detection sensors that illuminate on the rear-view mirror failed to function as intended. The contact stated there was a special customer program released however they had missed the expiration date by one month. The contact took the vehicle to the dealer who confirmed that the side detection sensor, modules and wire harnesses needed to be replaced. The contact later found that the wiring harness associated with this system was prone to corrosion and needed to be replaced. The vehicle was repaired however the failure continued to occur intermittently. The manufacturer was made aware of the failure. The approximate failure mileage was 44, 786.
On July 11th 2023 I finalized the purchase of a black 2014 Chevy Impala LT at Premiere Auto Solutions LLC. The beginning of the week of July 22nd I started hearing loud noises coming from back tire area. On approximately July 24th, the engine light came on for small Evaporation leak code. Returned back to Premiere Auto and spoke with worker\dealer about situation with the car. Was told by this person after a test drive with him that the back tire noises are normal due to the braking system, and he cleared the engine code from dash panel. Within the next week, back tire noise got worse and engine light came back on along with message to service front camera\side detection system. Car diagnosed by two mechanics for replacement of back rotors\brakes and Evaporation purge valve. Attempted to contact Premiere Auto to no avail. …
The side detection module has just failed out for the second time in under 2 years, 20k miles on my 2014 Impala LTZ. The first time it failed (less than two years ago), the side detection indicator on the mirrors started to go off randomly, and then eventually, I was unable to reliably lock/unlock my car. Eventually, it wouldn't even start/shut off (Push to start), and the entire dash was off even when running. It messed with seemingly the entire car's electrical system, and made it unsafe to drive (imagine if I would've been on the highway and the car shut down, plus I didn't have any gauges at all). As stated, this system (and side detection module specifically), has corroded and gone out again, despite this module supposedly being better sealed. …
Multiple electric concerns...airbag light, park assist, inop camera, and losing communication with BCM(?) Found multiple communication codes for a variety of different modules. Found main source to be from the "side detection modules". Found fuse 62 blown underhood. Inspected side detection modules and found "a lot of corrosion" on both modules and connectors. Needs side detection kit. I purchased the used impala on 12/19/2020 with 63,897 miles. The first time this issue was a concern was on 07/02/2022 at Merit chevrolet (MN). Mileage was at 83144 at that time. Diagnosis ... recommend both rear side detection modules and harness? According to Special coverage adjustment #N172097060 it is known to be subject to "water intrusion"? This problem affects the whole electrical system which includes airbag function. Why does this safety concern have a limited coverage time? …
We have had several problems with the blind spot sensor on our 2014 Impala LTZ. Problems would always occur when driving in rain or snow. Dealer would just say that the sensor gets wet and that we should try to dry it off. Once the sensor was dry it would work ok. Now the sensor does not work at all. Took it off and it was full of corrosion. Reading online regarding reviews I find out that this is a very common problem with GM vehicles but GM refuses to do a recall. However they did do a special offer to replace the sensor if you have less than 80,000 miles. My car has 85,000 but I have dealt with this problem for several years. I replaced the sensor myself (at a cost of $400) and now they tell me it has to be reprogrammed. That really sucks. It is too bad that GM just can't accept the fact that they have a faulty product. …
I have a 2014 Chevy Impala LTZ, owned it for 9 years. Just started with issues within the last 6months and it just seems to be getting worst everyday. While making a left turn, not even driving 5mph my power steering fails and the drivers side tires seem to lock up as if the car would be hydro planing. Once it happens the dashboard Alerts come on such as Stabilitrac, Traction Control, ABS, Service Break Assistance, Power Steering, and I lost control of the car in the middle of the road!! Brought the car to the shop they change the wheel bearings. We also changed the brakes in March of this year, we had a front and back realignment plus new tires within the last 6 months. The dealer we got it from is no longer in business, as I did buy it used. I called the Chevrolet 800 number for recalls but no luck finding anything. …
Very loud abnormal ticking sound coming from the vehicle, failed actuators. Resulting in hvac loss. Arecall issued in 2014 for stabilitrak /abs for bad grounds on 2014 Chevy Impalas. HOWEVER 2.5 and 3.6 L engines were not included, BUT NEED TO BE!!! the car will drive rough and eventually just cut off in the middle of traffic highway or residential. This is what it did on me, putting me in a very dangerous position with my 5 year old in the car. This issue is effecting thousands of the same vehicles and GM's failure to address this issue is leaving the owners of the affected vehicles driving unsafe vehicles. GM / Chevy needs to issue a recall on ALLL the 2014 Impalas. (which they will not confirm or deny). While I was driving 60mph on an interstate my car notification screen displayed "service stabilitrak"/ "engine power reduced"... …
The contact owns a 2014 Chevrolet Impala. While driving at an undisclosed speed, the Stabili-Trak warning light illuminated and the vehicle lost power steering functionality, causing the steering to become extremely firm. The contact stated that excessive force was needed to turn the steering wheel. The contact safely pulled over, and after the audible alarm ceased, the vehicle returned to normal operation. Additionally, the vehicle lost electrical power and stalled on several occasions. There was no warning light illuminated. While the vehicle was stationary, the vehicle frequently lost power. The contact stated that the battery terminals were disconnected and reconnected after the failure, and the vehicle operated for approximately 15 minutes before the vehicle stalled again. The manufacturer was notified of the failure. …
The linx radio stopped working. The onstar system stopped working awhile after the linx radio stopped working when the car started to operate off of battery reserve (or what I think is battery reserve --- the light on the dashboard changed to blue). I've had to change the batter twice in 2.5 years. I'm told the battery Duralast is a good battery and that its an electrical fuse problem and it would be difficult to find which wire is the problem. The vehicle has been inspected by three different dealers in three different states. I was also told to uninstall onstar for resolution of the electrical problem of the battery draining and needing to draw energy from another source taking up more energy than it's suppose to in the vehicle. Yes, in 2017-18, the problem was confirmed by the dealership where I purchased the car brand new in 2014, Criswell Chevrolet in Gaithersburg, MD.
Related recalls
Electrical system
General Motors LLC (GM) is recalling certain model year 2013-2014 Cadillac CTS, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, and Yukon XL, and 2014 Buick Enclave, Chevrolet Express, Impala, Silverado HD, Traverse, GMC Acadia, Savana, and Sierra HD vehicles.
Remedy: GM will notify owners, and dealers will replace the chassis electronic module, free of charge. The recall began on December 26, 2014.
Electrical system › Ignition
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring.
Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 23, 2014.
Electrical complaints in other Impala years
Frequently asked questions
How common are electrical problems on the 2014 Chevrolet Impala?
NHTSA has 221 complaints about the electrical system of the 2014 Chevrolet Impala, 35% of the model year's 637 complaints. The component named most often is horn (2 mentions).
Is there a recall for 2014 Chevrolet Impala electrical problems?
Yes — NHTSA recall 14V-614 (electrical system, Oct 1, 2014); NHTSA recall 14V-355 (ignition, Jun 23, 2014). Recall repairs are free at authorized dealers.
At what mileage do 2014 Chevrolet Impala electrical problems start?
Half of the complaints with a recorded mileage happened before about 66,000 miles, and 16% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 5 fires and 0 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.