Electrical System Problems of Chevrolet Tahoe - part 1

Since March of 2025 I have identified a critical safety defect with my vehicle. When driving and without warning, the vehicle unexpectedly shifts to neutral, experiences a loss of propulsion, and the engine shuts off. This has occurred multiple times in which I narrowly escaped collisions with other vehicles or objects. If this would occur at a high rate of speed, it would certainly result in serious accident including possible fatality. I have experienced three near-accident scenarios when I had children in the vehicle. I have worked with classic Chevrolet in sugar land, texas who has made six attempts at repair. They have each time found a different component attribute to an error code and replaced that part. After each visit they tell me that the car is fixed and safe to drive. They have never been able to provide a clear explanation as to why I am experience this reoccurring issue, but attribute it to a different part each time. Within 5 days to 2 months, the incident repeats. I have recent video of the incident that I can share. Chevrolet customer care has been minimized my concern and informs me that their service staff has found the vehicle to be fully operational and safe to operate. I have spent over $6,000 in failed repairs. I do not feel safe operating this vehicle. That list of repairs includes: March 7, 2025 - battery replacement March 28, 2025 - DC/DC power converter April 22, 2025 - ecm updates January 8, 2026 - •throttle body replacement •serpentine belt replacement •engine air filter replacement •transmission fluid flush •coolant fluid flush •fuel injection cleaning •hydrogen carbon cleaning service January 23, 2026 - power control module (recall) January 30, 2026 - rear differential system replacement March 10, 2026 - • replacement of the high-pressure fuel pump • replacement of the DC power supply converter • hydrogen carbon cleaning service I can share all invoices. Chevy is not taking this matter seriously. Please support.

See all problems of the 2021 Chevrolet Tahoe 🔎.

The vehicle shifted itself into neutral and shut off while driving. It happened twice in three days. The first time I was pulling into the driveway so I was able to put it in park and restart the car safely. The second time I was in the middle of traffic in tampa and it shifted into neutral and shut off in the middle of the road. Luckily no cars hit me but again I had to apply the break , restart the car and put it back in drive. This was very scary and I had my kids with me. Earlier in the day I had been driving on 75 and if it had happened then it could have been a bad wreck. It shows there are no current recalls on my vehicle. No warning lights or messages appeared. Vehicle was purchased less than 30 days ago. I will contact the dealership to verify there are no open recalls just in case but again when I checked I found none.

See all problems of the 2022 Chevrolet Tahoe 🔎.

The sound in my entire truck goes in and out. Even my blinker signal does not make sound and I have to look down to ensure my blinker is on which could lead to an accident.

SUV states brake system failure, tell driver not to drive over 43 miles per hour, attempted to have repairs continue to have repeat service with same issues, notified gm customer service of concerns regarding safety of vehicle with no brakes or steering control however vehicle states owner can drive, this is not safe to general public nor myself and family, gm staff stated could have towed did not seemed concerned for safety of the alert given as there is no current recall on this VIN.

See all problems of the 2024 Chevrolet Tahoe 🔎.

My truck was driving perfect and I went to pull into a parking lot in arkansas where I live in long story short it started acting funny trying to idle out and then I heard a knocking noise. It happened twice. Then my service esv light come on next my motor light come on then my auto for a collision system failure light come on. It’s on the dash anyway my vehicle is not running around. It has hardly no power and I smell something under the hood from time to time burning it’s kinda like an electrical smell. I’m not sure. I’m not a mechanic. I’m a [xxx]. I’m a [xxx]!!! but I have to have a way back back-and-forth to work and I cannot drive this vehicle. I have been driving it to work and just straight to home and that’s only like a mile from the shop but I need a replacement vehicle I need to sell mine at wholesale value as you guys said you would that would be greatly appreciated. God bless you guys. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The vehicle has service driver assistance system warning. The seat vibration is not working and I believe there are issues with the sensor and or harness. There have been recalls on previous years of this vehicle for the same thing. There have been a wave of these lately, according to the dealership working on the vehicle. Parts availability is currently low because of this resulting in longer repair times. This is a key safety feature of the vehicle and must be repaired quickly. Unsuspecting users may expect warnings before collisions that may not happen.

My car has a problem this will be the 3rd visit to the chevy dealership and the 6th time in a garage. At this time, the original alternator that came with the Tahoe, was running high through December and replaced with a new alternator from parts geek. It was ok for a couple weeks and is running high again. You cannot test it from a cold start to get this reading. It must be ran for at least 20 min. After a certain amount of time the battery gauge will move to the highest point, the warning lights of abs, traction control, stabilitrak, trailer brake light, battery light (first time on 1/27/2026 for battery light), loss of drivers assist on 1/26/2026, tire pressure light, car dies coming to a stop sign. I can’t turn it back on for at least a min. I’m stuck inside with zero power, can’t unlock the doors to get out to direct traffic, open windows or put on 4 ways so I don’t get smacked in the middle of the road. After that minute I heard a click (no key in ignition, not trying to start) and then the dash lights started coming back on again and I started it. The battery did not restart the time on the radio screen so I’m assuming I didn’t die fully. The radio screen always goes black first, then the heat goes in and out, the warning lights come on and it dies. Takes a minute or so to be able to start it again and the lights aren’t on anymore but will continue to do the same shit after awhile of driving and now daily. I’m afraid to drive it anywhere since almost getting stuck inside and plowed at an interaction. I have reached out to chevy about this problem and was referred to take it back to the dealership again, and to reach back out as soon as it’s there to open a case on the issue. Ive had it, this has been ongoing for a year, and I have to keep paying for things that doesn’t fix the issue and it’s getting worse.

See all problems of the 2017 Chevrolet Tahoe 🔎.

When I started my car at home, all of the dash warning lights came on, one after another. I put the car in reverse and started backing out of my driveway. I tried to stop but there were no brakes! I slowly pulled back into my driveway and turned the car off. I had to take off work that day because I didn't dare to drive the car. The next day I started the car up and the check engine light was on. Luckily, I had brakes and I could go to work. Now, a day later, my engine light is not on. I made an appointment at the dealership. They can't get me in until mid February so I'm stuck with this problem, not knowing if the brakes are going to fail while driving. Oddly enough, when talking to a CO-worker who has a 2023 Chevrolet suburban, she recently had the same exact problem with her car. She has an appointment scheduled as well. I also read a complaint on this website that had identical problems. This car only has 8500 miles on it. It's still new! someone is going to be killed or hurt very badly if this ever happens while driving. Please look into this.

See all problems of the 2023 Chevrolet Tahoe 🔎.

Electric power steering system issue after battery died and had to be jump started.

Since 15,394 miles vehicle has experience multiple system failures upon vehicle startup. 2/24, 2/25, 12/25, 1/26. In all of these 4 instances the brakes become spongy/hard, steering wheel locks, and I am not able to control vehicle. Dash lights up; "brake system failure - 43mph top speed", "fwd collision system unavailable", "service traction control", "service esc", "service steering column lock", "service brake pad monitor". Dealership has replaced, telematic control module, electronic brake control module (ebcm), serial data gateway module, park assist module and most recently they replaced the battery and cleared the codes to "fix" the same intermittent but recurring condition. In 11/24 recall n242447990 was performed, reprogramming of brake system control module and serial data gateway module, the exact same issue happened before and after the recall.

Truck bucked twice in high-speed lane of the highway, gas pedal went soft and we luckily were able to coast the truck to the side of the highway without getting hit. The truck put itself in neutral when we lost the engine and the truck would not restart. It had to be towed, while me and my two kids stood on the side of a dangerous highway for 45 minutes in the snow. The truck has 52,000 miles, engine was already replaced at 10,000 miles. It just passed the recall inspection and had the upgraded oil that was recommended.

Vehicle continues to experience flashing air bag light and service self-restraint system warning. Brought in twice in 2025 for self-restraint system but dealer refuses to cover under warranty. On December 18, 2025, experienced complete power and electrical failure while in transit on a turning lane. The vehicle was unable to start, or open any windows, and the transmission would not shift back into park or neutral while obstructing traffic near an active railroad. Vehicle battery was replaced and was able to safely put vehicle into gear. Vehicle battery replacement allowed for normal driving; however, from that date on the transmission started shifting harder and jerkier. On December 31, 2025, vehicle was being driven on the freeway to then experience difficult shifting and reduced power. Subsequently, the drive indicator began flashing red and a service transmission indication appeared. There has been at least three instances, since vehicle purchased, where sudden loss of power and control of the vehicle in motion has occured.

The car was parked totally normal, went into a store, then came out to start it and when it was put in drive every light on the dash came on and gave a warning for “brake system failure top speed 43 mph” “service traction control” “service esc” “service steering column lock” “service brake pad monitor” “trailer brakes disabled service required”. Shut the vehicle off and restarted with same results. Brakes were inoperable and almost hit the car parked in front of me. Let the car shut down for a couple hours came back and started it and now everything acts normal except there is a check engine light. Haven’t read the codes yet but am making an appointment at the dealer for warranty work.

The contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving 65 mph, the vehicle hesitated and the temperature gauge failed to function as needed, with an abnormally loud sound coming from the cooling fans. The check engine warning light illuminated, and a message about the battery was displayed, and a warning light about the battery was illuminated. The vehicle was taken to an independent mechanic, who diagnosed that the thermostat housing had failed and the wiring to the fan had failed. The vehicle was repaired. Several days later, the contact stated that on a separate occasion, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine warning light was illuminated. The vehicle was taken back to the independent mechanic, where it was diagnosed and determined that the catalytic converter had failed. The vehicle was repaired; however, the same day the vehicle was picked up from the independent mechanic, the check engine warning light illuminated. The vehicle was taken back to the independent mechanic, who diagnosed that the timing chain had failed. The vehicle remained at the dealer unrepaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 165,880.

See all problems of the 2015 Chevrolet Tahoe 🔎.

To whom it may concern, I am writing to express my absolute shock, extreme frustration, and profound distress regarding the catastrophic and recurring failures of the brand new $86,626. 50 2022 Chevrolet Tahoe rst we purchased from community Chevrolet (200 w olive Ave, burbank, CA 91502). We did not purchase a used, low-budget vehicle; we invested a life-altering sum of eighty-six thousand dollars in what we expected to be a safe, reliable family SUV. Instead, we have received a death trap that the dealership refuses to fix permanently. This vehicle is fundamentally unsafe to operate. We have brought it to your dealership four (4) times for the same critical safety issues, and each time, we receive the same insulting explanation: a "software update" or "recalibration. " these are not fixes; they are negligent bandaids designed to clear error codes long enough for us to drive off the lot. We are experiencing terrifying, random system failures while driving: "service esc" warning "forward collision system unavailable" "brake system failure 62mph top speed" let me be unequivocally clear: the braking system has failed twice while my wife and three young children were inside the vehicle, nearly resulting in fatal collisions on the freeway and city streets. This is not an inconvenience; this is a life-threatening defect that you have failed to remedy. The negligence displayed by returning this vehicle to us in an unsafe condition is staggering. The financial and personal toll is immense and completely unacceptable: we have paid for tow trucks three times. We have missed work, leading to a formal warning for my wife's employment. We have incurred costs for rental vehicles and arranging essential transportation for medical appointments and school runs. For $86,000, I expect a vehicle that adheres to basic safety guidelines, not one that endangers my family and others on the road. The vehicle had approximately 56,000 miles when these critical issues became severe, yet it is.

Vehicle taken into dealership for maintenance, after car received cars system software malfunctioned. Display screen went black and states "return to dealer. Failed update" due to this issue I don't have access to car settings with most features are unavailable. All warning chimes such as turn signals, park sensor warnings, lane departure warning are inoperable. Had drove miles with turn signal on causing traffic disruption on neighboring lanes.

As the owner of a 2023 Chevrolet Tahoe, I am currently experiencing persistent issues with the instrument cluster going dark and a severely malfunctioning gm 6. 2l l87 engine. In November of the previous year, I encountered a sudden and alarming loss of engine power while traveling on a multilane highway at a speed of 70 mph. I successfully maneuvered the vehicle to a narrow shoulder, where I remained, accompanied by a highway patrol officer, for over three hours until a tow truck arrived. The gm certified dealership informed me that the engine was seized. The mechanics were unable to start or manually turn the engine. Upon removal of the engine’s oil pan, they found metal fragments in the oil. After having undergone an engine recall “fix” three months earlier, which included an inspection and oil service change to a more viscous 0w - 40, a new oil filter, and a new filler cap; in November, my engine failed and was replaced with a new 6. 2l l87 engine. Initially, I was pleased with the repair, but I have since lost confidence that my car is safe after the new engine began exhibiting symptoms of a pending failure. The Tahoe hesitates on acceleration when merging with highway traffic, the engine dies when decelerating, the check engine light flashes at highway speeds, and the instrument cluster turns off at random. The vehicle that has been outfitted with a brand new engine is currently at the Chevrolet dealership; however, just like in August of 2025 during the recall inspection, the mechanics there were unable to find any problems with their work or the new engine. They simply erased the stored p0300 engine diagnostics codes and ignored my evidence video, which showed the check engine light blinking at highway speeds. Despite the repair attempts, the issues have not been resolved, and the vehicle continues to pose a safety hazard.

We were sitting in a parking lot with the engine running and heard an explosion in the vehicle. Later we discovered that the left rear, side curtain air bag had deployed. Horn has been inoperable for months cruise control hasn't worked in years steering wheel radio controls don't work. No appointment reason for any of it. Pass air bag off warning light red air bag light is usually on but not always.

See all problems of the 2008 Chevrolet Tahoe 🔎.

While I was driving, my vehicle suddenly lost all power I encountered a misfire with the engine light flashing, and diagnostic codes p0353 and p0300 indicated a misfire on cylinder three. The coil pack and spark plugs for that cylinder were replaced, yet issues persist and problems continue. There is a strange popping and cracking noise coming from my dash. My brakes are also making it loud sound randomly when pressing on breaks yet brake pads are fine.

See all problems of the 2025 Chevrolet Tahoe 🔎.

My 2025 Chevrolet Tahoe z71 3. 0l lzo duramax with approx. 3,380 miles experienced a sudden and complete engine failure while towing my camper on the interstate at night, in the rain, while traveling alone 375 miles from home. The vehicle lost power, displayed warnings, and became inoperable, forcing me onto the shoulder in unsafe conditions. The engine has been diagnosed as requiring full replacement due to a defective crank end play / thrust bearing, under technical service bulletin (TSB) 25-na-307. This is a significant safety concern for a new vehicle and could have caused a crash. Gm has multiple documented issues with this model year, and the car has also experienced unresolved infotainment defects, as outlined in TSB #pit6393f. Requesting NHTSA to investigate a potential safety defect.

I'm submitting this complaint regarding an ongoing electrical defect on my 2022 Chevrolet Tahoe. The vehicle has experienced repeated sudden battery drain & no-start events, occurring approximately once per week. These failures happen without warning, sometimes after the vehicle is parked for as little as 6 hrs. All dealer updates & software campaigns were completed. Despite this, the vehicle continued to suffer no-start events. After further troubleshooting, we removed fuse f35ra (which powers only the hands-free liftgate module). Once this fuse was removed, the issue immediately stopped — confirming that the parasitic draw originates from the liftgate module, consistent with gm technical service bulletin 24-na-039. This indicates a known electrical defect. This problem has caused multiple safety concerns: the vehicle has left my family stranded late at night. My husband works in chicago & relies on this vehicle. A sudden no-start or complete electrical failure in that environment is dangerous. We were unable to transport our children to scheduled activities due to the vehicle being completely dead. Repeated deep discharges are damaging the battery we purchased only months ago. A family vehicle shouldn't unpredictably become inoperative. This is not normal wear — it's a safety-critical electrical defect that could strand owners in unsafe conditions, especially in winter climates. Gm hasn't issued a recall for this issue despite issuing a TSB documenting the defective behavior. The frequency & severity of electrical failure suggest this should be investigated as a potential recall. I'm requesting NHTSA review this matter due to the safety implications & the repeated nature of the failures. Incidents: no-start after 6 hours parked at a friend’s home multiple weekly no-start events before fuse removal occurred before & after software updates were performed location: incidents occurred both at home & away from home. Thank you for reviewing this complaint.

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving 20 mph into the driveway, the engine seized. The contact stated that the service traction, service esc, and engine warning lights were illuminated. Upon research, the contact associated the failure with NHTSA action number: ea25007 (engine, engine and engine cooling). The vehicle was towed to the local dealer, where it was diagnosed, and dtc: p0300, p050d, and p0302 were retrieved. The vehicle was not repaired. The manufacturer was notified of the issue and offered to help with the cost of the repair. The approximate failure mileage was 64,572.

The contact owns a 2016 Chevrolet Tahoe. The contact stated that while driving at approximately 40 mph, the vehicle intermittently lost motive power. The messages "service power train", "roll down driver side/ passenger side windows", along with several other unknown messages, were displayed on the instrument panel. No warning lights were illuminated. The contact stated that the failure occurred on several occasions, which required the codriver to wait several minutes for the vehicle to return to normal operation. The vehicle was taken to the residence. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 97,000.

See all problems of the 2016 Chevrolet Tahoe 🔎.

On multiple occasions, my car has locked my keys on the inside of the vehicle. I have put things inside my vehicle before leaving and closed all the doors, upon returning, even just a few minutes later, my doors are locked and I am locked out of my vehicle. Additionally, my car is not detecting my remote. I cannot unlock my car with the buttons on the door and need to have my keys in hand for my car to detect the fob. Additionally, if someone opens the door while the car is running but in park, and then closes the door, the car will beep as if there is no longer a remote detected. This has happened on multiple occasions. I have changed the batteries in the fobs multiple times, switched out my fobs so I was using a different fob and it has happened with both of my fobs.

See all problems of the 2020 Chevrolet Tahoe 🔎.

I purchased a 2023 chevy Tahoe in oct 2025. Since then, I have been trying to figure out how to set up the mychevrolet app. The onstar button doesn’t work so I called onstar. After multiple calls, they told me that the account is linked to the previous owner and can’t be transferred because of a faulty telematics communications module. The faulty module is also causing the clock to run slow, which indicates battery drain is beginning. The onstar module failure poses a huge safety and privacy risk. Safety concerns include battery failure that can cause me to be stranded and the fact that the previous owner has the ability to start my vehicle at any time, even while parked in my garage posing a risk to my family’s health/life with trapped carbon monoxide building up. Privacy concerns include the previous owners ability to track my vehicle, lock and unlock doors, access my contacts, call log, location, and more. This is a significant risk. The dealership should not have sold me a vehicle with a defective module without repairing it and now refuse to fix it. This should have been included in gms factory recall for 2023 Tahoe tcu’s or a new recall should be issued. Consumers should not bear the burden to fix a widely known safety, health, and privacy risk.

I recently purchased this vehicle about five months ago. I took it to riverside Chevrolet to get a diagnostic on it because my steering wheel is locked all the lights on the dashboard are on in the vehicle is not drivable almost a month and a half of riverside Chevrolet and they could not get a diagnostic on it. Apparently the technicians there were not able to figure out what’s wrong with it. The vehicle is not drivable and it is a safety hazard.

After my vehicle experienced a brake system failure 3 weeks ago and I got my vehicle back from the dealership. I noticed that my vehicle has no emergency brake so in the event of this failure and/or future brake system failures there was no way to stop my vehicle. Their emergency brake is technically a parking brake that can only be applied when the vehicle is completely stopped. I'm not sure how a vehicle this unsafe would be even legally sold or allowed to operate on the roads.

On several occasions while operating the vehicle during inclement weather the windshield wipers intermittently stopped working. Restarting the vehicle several times did not remedy the problem. Once the vehicle was parked for a while the wipers started working again. This vehicle has been to the dealership regarding this issue numerous times and sent back in service with a message from the technician, could not duplicate the complaint.

The engine in my vehicle has experiences major failures in valve flap adjusters, multiple valve failures, valve cover issues, and over consumption of oil by over a quarter in a week and a half of average driving. My safety was put at risk because the engine failure resulted in traction control malfunctions while going 70 mph up hill on a major interstate. This led to extreme shaking which did not stop until slowing down to below 15 mph. Luckily I was a mile from an exit and was able to coast off the road quickly; it was decent enough weather, and I was less than 5 miles from my destination so I could creep between 15-30 mph to not exacerbate traction control alarms. That slow mph did back up traffic behind me. As far as I am aware the problem was likely reproduced by the dealership service tech, which led to their recommendation to replace the whole engine. They do not consider it to be covered by any warranty anymore. The engine may be in their possession still, but I am unsure. There were zero warning lights/prompts from the vehicle that anything was going wrong prior to the shaking and loss of traction control at high speed. The dealer service team suggested that my high miles led to the engine failure. I do highway driving with it and have followed all manufacturer recommendations for oil changes, and even more frequent changes with oem oil since about 80k miles. I do not think this engine should have failed at this amount of mileage. I made note of oil consumption around 95k miles and measured oil loss regularly. It was a little less than a quart every 2k to 3k miles which manufacturer states is within spec so I would top off oil. A year ago it had a tcm wire replaced after burning in half. 3 weeks ago I also had to replace the entire turbo. The wire rendered my car unable to go in gear. The turbo failure put me into limp mode. I think the turbo failure was a sign of a deeper issue that went undiagnosed.

The onstar telematics control module failed and the dealership says the repair parts are not available with no expected delivery date. This disables the onstar system and gps.

Steering wheel locked driving hazard lights on dashboard on power steering light on stranded on road with my kids took it to riverside Chevrolet almost 2 months in dealership 2 technician could not give me a diagnostic on the truck they could not repair the vehicle vehicle not drivable.

My 2023 Chevrolet Tahoe LS has experienced repeated service issues within the first year of ownership. The vehicle has been in the repair shop five separate times and out of service for approximately five months total. Due to extended repair periods, the mileage remains extremely low. A primary concern involved the steering system. The steering wheel was noticeably off-center while driving straight, requiring continuous correction to maintain proper lane position. Steering-related components were inspected and replaced. There were no warning lights present at the time. However, improper steering alignment raised safety concerns regarding vehicle tracking and stability. The vehicle has been inspected and repaired by authorized service providers. I am submitting this complaint to determine whether this reflects a broader safety-related issue with this model year.

At a stoplight vehicle wanted to stall out motor was shaking.

When driving the car just stops losing power then the car immediately shuts down and stops driving. I had to call a tow truck when it’s taken to the dealership the fuel pump power control module is faulty. This is a 2021 Tahoe they had to replace the fuel pump, power control module, and this vehicle should not have to be replaced. Chevrolet/GMC knows that these modules will make the vehicle stop wherever it is driving. I happen to be on a freeway going 70 mph and could have been killed. They have not put a recall out to have these modules replaced in any SUV. This is a danger for any driver on the road. This is a lawsuit waiting to happen for people. You know that they are aware this is happening because they paid for the tow and replaced this part that is not warranty now for free. Yes, great that it was paid for but thankful I did not lose my life as I could’ve been rear ended when my car shut down going that fast in the middle of the freeway I am begging that they please put a recall so no one gets injured or killed.

To whom it may concern, I am writing to formally report serious defects with my 2021 Chevrolet Tahoe (VIN: [xxx] ) and to request assistance with repair costs. Approximately six months after purchase, when the vehicle had about 22,000 miles (I bought it used with around 19,000 miles), the battery and electrical system failed. I brought it to the dealer and was told there was no issue; they only performed a jump start. Two days later, the vehicle broke down in the middle of the road. I had to pay for a tow truck and replace the battery completely out of pocket. More recently, at about 92,000 miles, the vehicle developed severe engine problems. A certified mechanic diagnosed collapsed afm lifters and camshaft damage. The repair requires oem gm parts and costs approximately $4,500. This issue is widely reported by other gm owners with 5. 3l afm engines and is known to be a manufacturing defect, not a maintenance problem. Please note that my Tahoe has been well maintained, with oil changes always performed on time and using the correct oil and service intervals recommended by gm. Despite this, the vehicle has experienced repeated and costly failures that create unsafe driving conditions. I kindly request that gm review my case and provide assistance with covering the repair costs or reimbursement, given that these issues are the result of known defects and not owner neglect. I look forward to your prompt response. Sincerely, [xxx] [xxx] 33032 [xxx] [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).