Gas Recirculation Valve (egr Valve) problems of the 2018 Chevrolet Volt

The egr valve clogged, causing a a servo to blow the f3 fuse, disabling the engine while driving. This occured suddenly while driving on a busy road with no shoulders. I managed to coast into a parking lot not too far away but I had no charge left in my battery. I could only get the engine to start back up for less than a minute at a time. I got my car inspected by Chevrolet and they confirmed they issue. Very shortly before the engine cut off, the car started jolting. There weren't any warning lights or error codes before this.

Electrically actuated egr valve fails, it draws too much current and blows the f03 fuse (labeled “no walk home”) which has 4 other components on it, this causes “reduced propulsion” message, soon after the engine overheats due to one or more of the 3 other components that lost power, and the “engine not available” message appears and the vehicle loses all motive power. This syndrome is well documented in the gm-volt online forum. Additionally this vehicle has portions of the ev battery that failed, I am still waiting for battery parts to arrive and its been 4 months, many owners have waited between 1 and 2 years for the battery to be fixed, this contributed to this issue as the electric propulsion would have possibly been available if the warrantied battery was repaired within a reasonable timeframe. I was refused a service loaner. My recent contact with Chevrolet customer service suggested I rent a car, and they will reimburse $45 per day, however they insist I pay for it and when the repair is complete, they will reimburse me. There is a gentleman on the Volt forum who has laid out about $5,000 on rental cars for well over a year, and is finally reluctantly getting a buyback, but they depreciated the car but did separately make good on the rental reimbursement. Neither he nor I really want that result, we want the car repaired in a good faith effort, instead both battery parts and egr valves are in short supply. Currently the gm part is between $1400 and $2500 when in 2024 the same part was widely available for $240. I understand this is a bit rambling, but the context matters, and gm is dragging their feet on servicing the warranty liability they have. My tzev warranty is good until 2034 and they are actively trying to kill my car off to save the ongoing cost of servicing this warranty. They are also putting owners at risk. Please consider a battery recall and an egr valve recall. Regards, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2018 Chevrolet Volt. The contact stated that while his wife was driving 60 mph, the message “power reduced” was displayed. The vehicle was taken to an independent mechanic who determined that the failure was due to the egr valve. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 51,000.

Egr valve failure at highway speed of 70mpg on busy road with passenger and service dog in vehicle on a road trip (on ice not electric). This produces a reduced propulsion in the vehicle and it becomes unsafe to drive. The egr failure blew the 15a #3 fuse known as the "no walk home" fuse, so I needed to be towed to a parts store then unplug the egr valve to make it somewhere safe. It was a Sunday, so every dealership (in the va area at least) was closed. It is a well known/documented issue and the warranties have been extended, but only in a few states with the carb protections. There are no warnings, if I was not an adept driver, we could all be dead. I also became stranded ~six hours from my home and only ~eight thousand miles outside of warranty. The replacement part costs ~$1800 without labor - the most expensive egr valve the 60yr old parts employee at the dealership had ever seen, on a hybrid car which doesn't even truly require the part to operate or to pass emissions in some states. I think gm will help me with a goodwill repair in this case, as I have been a loyal chevy customer my entire life and Volt owner since 2013 - but that is not the norm, so please take action and extend warranty protection to all Volt owners like the becm issue.

Driving on gas on the highway, the adaptive cruise control suddenly disabled with a "reduced propulsion" message on the dash and a check engine light. The car started struggling in its propulsion. We found an autozone and scanned the codes, and multiple were returned. A google search pointed us to the "walk home" fuse, which indeed had been blown. Replacing that fuse and disconnecting/reconnecting the battery eliminated the errors. Less than a week later during highway driving (the next time the battery charge was used up and it switched to the ice) I got another check engine light, but this time without the "reduced propulsion" message. Scanning at autozone again revealed a p0404 message referencing the egr valve. Due to the limited availability of the part I have called into covert bastrop (bastrop, TX) and am waiting to hear back on their ability to fix the car.

On [xxx], while driving on [xxx] in virginia, the check engine light came on in my chevy Volt. A message on dash said that there was reduced propulsion, and the gas engine quit running. The car switched to battery power, which would not have lasted long enough to get us home. At this point, we were stranded on a very busy highway which seemed quite dangerous. Using battery power, we were able to get off the highway. We then made arrangements to have the car towed, approximately 150 miles to a car dealer/repair business in frederick MD. The vehicle was checked out by the car dealer who identified the egr valve as the problem. However, they did not know when the part would be available , and still, 4 weeks later, do not have any date for availability of the broken part. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

On 8/30/2024 I had driven my 2018 Volt (purchased new on 3/27/2019), with about 45,000 miles on it, on a normally 5 hour trip. About 3 hours into my trip on I-94 my car suddenly slowed down with a "reduced propulsion" message and a check engine light that came on. (the engine probably has run less than 25,000 miles of the total miles I have driven it, with the rest being purely on battery. ) I was extremely fortunate to have been in the slow lane when the car suddenly stopped accelerating. This could have easily turned out very, very bad. The next day I had a dealer diagnose the car for a little over $400 - they told me there was a problem with my engines egr valve and that the parts were back ordered so they couldn't give me an indication of when it could be repaired. I got the car back to my home dealer and they charged me another $200 to re-diagnose the problem and came the same conclusion of a bad egr valve. They too have been unable to get a valve from gm. They have quoted me about $4,000 to have a new valve installed when they can get one. Heck, the car only has 45,000 miles on it!!.

The contact owns a 2018 Chevrolet Volt. The contact stated that while driving at an undisclosed speed, the vehicle lost automotive power. The check engine warning light illuminated. Shortly afterward, the message "reduce propulsion, engine will not start" was displayed on the instrument panel. The vehicle was towed to a local dealer where it was diagnosed with a defective egr valve. The contact was informed that the egr valve needed to be replaced. The vehicle was not repaired due to the cost and lack of parts availability. The vehicle was towed to the residence. The contact believed that the cause of the failure was related to high temperatures. The manufacturer was made aware of the failure. The failure mileage was approximately 69,000.

While driving our 2018 chevy Volt, dashboard warning message “propulsion power reduced” displayed. Vehicle performance was not otherwise affected. Subsequent diagnosis from our chevy dealer was, among other things, a faulty exhaust gas recirculation (egr) valve. We were informed that our vehicle was “no longer safe to drive in this condition” and the vehicle has been sitting on the dealer’s lot awaiting a replacement part for 2 months and counting, with no expectation of near-term resolution of our problem. We are aware that this is a widespread problem on 2017-18 Volt models, with many dissatisfied owners.

Egr valve clogged and failed on a long trip, bricked the car and had to tow many miles back to home shop. Now have been waiting 9 months and still no idea when the part will be available from Chevrolet. My shop and I have claims to Chevrolet for the part for service but still nothing and is getting so we are inconvenienced in travel.

Failed egr valve. While I was driving, I got a "propulsion power reduced" message and "engine unavailable. " my car slowly began losing power, leaving me with about 30 seconds to safely pull over. I had it towed to the dealer and they diagnosed a faulty egr valve. This seems to be a widespread problem with the Chevrolet Volts. To make matters worse, the replacement part is extremely hard to find, with many people waiting on backorder for over a year.

While driving on the highway, the egr valve in my car malfunctioned, initially causing my dashboard to read "propulsion power is reduced". After continuing to drive the car, the dashboard read 'engine not available, service soon', where it stalled and we had to restart the car. After restarting, the car went into ev mode with significantly reduced speed. Our safety was put at risk due to the initial stalling and subsequent reduced speed on the highway. The problem has been reproduced since the initial incident and our dealership confirmed the problem relating to the egr valve which continues to blow fuses when the engine is over-exerted while using gas. The dealership said that this is covered under warranty however, there has been a 5-year back-order on the part and they are refusing to offer any loaner car or compensation for a rental car.

The exhaust gas recirculation (egr) value has failed after only 20,000 miles of engine usage in my hybrid car. This is a highly-common part that fails and when it fails it shuts the engine down while driving; which leaves the driver stranded. General motors does not have the part available to purchase and has been on backorder for nearly 4 years. They do not have a resolution and they are not recognizing the gm service bulletin that was released 21-na-116 in feburary 2023. This is unacceptable. The dealership wants thousands of dollars for a $150 part (that you can't purchase).

The contact owns a 2018 Chevrolet. The contact stated that on several occasions while driving at various speeds, the vehicle lost motive power with the check engine warning light illuminated. The vehicle was steered to the side of the road and restarted each time, but the failure persisted. The vehicle was taken to the dealer where it was diagnosed that the egr valve needed to be replaced and 40 unknown dtc codes had been retrieved. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 55,000.

While driving, an engine warning "reduced propulsion message" came on. Then it said " engine unavailable". The car would not go to gas engine. We panicked as we were 20mi from home and only had a few miles of electric left. I was able to drive to the nearest Chevrolet dealership. It has been sitting there parked for 2 months. Uncharged. We are told that the problem is the egr valve but no part is available anywhere. It is a known problem but gm has no parts available to fix. I am not getting any answer as to how long it may take to get the part. Meanwhile, I am without a vehicle. I only have approx 25,000 on the car. We have not been given a replacement car or been given any clear response from gm or the dealership as to how long this may take to locate a part.

Initially was receiving intermittent “recieved propulsion power” warning and no check engine light. Did it about every 2 weeks but became worse. Received reduced propulsion power warning on a road trip from east TN to charlotte then showed a check engine light. I continued to charlotte I had 4 miles left on battery and was running on gas engine when “engine not available” warning came on leaving me with a nearly dead battery for propulsion. Fortunately, there was a very nearby gm dealership in charlotte which I was able to drop off and flew out of town for the week. I was told by the dealership that it was an O2 sensor and they had replaced it. Picked up the car the next week. I began the 3 hour trip back to east TN and about 30 miles into the trip I received the reduced propulsion power and engine not available. I had about 10 miles left on the battery so I stopped and stayed at a hotel with a car charger overnight. Resumed trip home that am, but same code was displayed and engine would not come on. Rented a uhaul w/trailer and towed it home. Dropped it off at champion Chevrolet in johnson city and they diagnosed it as a faulty egr valve. I learned that the part has been back ordered and looking at web forums I see people have described the same problem and they have been waiting many months for an egr to be available. So, nature of complaint I got lucky in that I did not get stranded. Fortunately I was in the right place at the right time. I could have easily totally lost propulsion were my battery were fail and don’t know if I could have gotten off the roadway.

The vehicle has a failure of the becm and the egr valve and cooler. Both parts are unavailable. I've been without my car for over a month. The service center cannot tell me when parts will be available.

. . . . . . Car totally stopped on road in traffic and would not restart. I felt the car losign propulsion so I got off the intestate and on to a local street. Message in dash was that engine was unavailable. I got out of the car and several cars almost hit my car. Car was flat bedded to chevy dealer and diagonosed. Egr valve needs to be replaced and is covered under warrenty. However, have been waiting 4days and t old that valve not available. This is on a vacation trip and 300 miles away from home. . I can ask for the egr valve from the car. I am on the gm-volt listserve and other generation 2 Volt owners have identified this problem previously. You should initiate a recall since the engine just cuts off and the battery propulsion is unavailable.