Electrical System Problems of Chevrolet Tahoe - part 1

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

See all problems of the 2023 Chevrolet Tahoe 🔎.

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.

See all problems of the 2021 Chevrolet Tahoe 🔎.

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).

2021 Chevrolet Tahoe original owner. Fuel control module failures. 1. Failed on 6/29/21 at 5,068 miles. Dealer replaced with gm part #13537053. 2. Failed on 8/15/22 at 12,130 miles. Dealer replaced with gm part #13544060 3. Failed on 8/1/25 at 41,247 miles. Dealer replaced with gm part #13554821 on each failure, vehicle was unable to shift to neutral, power remained on, electrical component began shutting down to conserve power, left stranded and required towing with rear wheels being dragged locked up onto tow truck. Once power was shut down, could not operate windows or lock doors other than keyed driver's door. Th entire failure mechanism puts the driver in an extremely unsafe situation. Recall notice #21v739000 was issued on 9/23/21 with to impacted notified owners on 10/14/21. Did not receive this notification since first failure was prior to recall and assume gm considered vehicle repair completed. Note that the fuel module part number has changed 3 times in my case, but part # 3554821 replaces 5 other listed part numbers. Is this the 6th iteration or of this part? what is the root cause of the fuel module failure? is it the module itself failing or an electrical issue that causes the fuel module to short out and fail. Gm/Chevrolet is not solving this issue. With 3 failures of the same component, this is a lemon and I have no comfort or confidence using this vehicle. When will the next failure occur and what unsafe situation will this leave me stranded in? read this issue applied to 2021 and 2022 gm full size SUV's and now reading issues through the 2024's. Unacceptable and poor quality. Gm needs to be held accountable to solve the root cause of these failures and stop putting a replacement band aid on the problem.

Car stopped while in motion, engine shutdown and could not be put into neutral to move vehicle out of traffic. Car had to be towed away. Only 37 k miles. This is the second time this has happened in traffic posing a major safety hazard. Fuel control module was what shut down the car while driving the first time. Now it has failed again.

The contact owns a 2021 Chevrolet Tahoe. The contact stated that the vehicle failed to start and was towed to the local dealer, who diagnosed that the fuel pump module was faulty and needed to be replaced. The fuel pump module was replaced, and the vehicle was repaired. After retrieving the vehicle, the message "key not detected" was displayed, and the vehicle was taken back to the local dealer. The dealer performed a diagnostic test and determined that there were 14 separate electrical failures with the tcm, ecm, and bcm. The cause of the failures was not yet determined. The vehicle was not yet repaired. The manufacturer was not yet contacted. The failure mileage was 37,000.

The windshield washer pump began smoking and has burnt electrical smell. Fuses for the washer pump did not blow to disconnect power from the pump. The pump continued to receive power after the key/pushbutton was turned off. This is a potential fire hazard while driving. Also a visibility hazard when the washer pump fails. This vehicle is a city of cripple creek, CO police vehicle. This failure has now happened on two of our police defenders (tahoe).

See all problems of the 2022 Chevrolet Tahoe 🔎.

The windshield washer fluid pump began smoking and has burnt electrical smell. Fuses for the washer pump did not blow to disconnect power from the pump. The pump continued to receive power after the key/pushbutton was turned off. This is is potential fire hazard while driving. Also a visibility hazard when the washer pump fails. This vehicle is a city of cripple creek, CO police vehicle. This failure has now happened on two of our police defenders (tahoes).

I really don't know what happened I was coming from okmulgee oklahoma I went to turn my signal on to get in left lane and my truck just put itself in accessory mode and I couldn't steer causing my truck to keep straight instead of switching lanes causing me to run into a construction merge sign that damaged my truck my insurance wouldn't cover the damages cause they said it sounds like a malfunction with my truck that I need to contact dealer.

See all problems of the 2015 Chevrolet Tahoe 🔎.

On 01/03/24, the vehicle stalled and smoked on the suncoast parkway. All dashboard warning lights and messages illuminated, and the vehicle entered emergency park mode. Onstar was contacted and the vehicle was towed to jenkins Chevrolet in homosassa, FL. The failure was linked to a broken pulley and belt system that damaged the ecm and wiring harness. No dtcs were pulled, and mileage in/out was 80042/80043—no test drive performed. On 08/06/24, the vehicle returned to jenkins for a roaring noise. A pulley bearing was replaced, possibly related to the earlier failure. Again, no drivability evaluation or codes recorded. On 03/09/25, the same full system warning lights/messages appeared again. The vehicle experienced harsh shifting and delayed acceleration. It was taken to autonation Chevrolet south clearwater on 03/10/25. Dtcs (p0700, p0717, p2714, p2716, p0706, and u-codes) were found but dismissed. Only the battery was replaced. Mileage in/out was 99494—no test drive performed despite claims one occurred. On 07/08/25, the vehicle again showed full dashboard warnings. Brought back to autonation on 07/09/25. On 07/14/25, customer received a $9,177. 85 estimate including full transmission replacement. Safety was at risk due to repeated stalling, loss of acceleration, and emergency parking mode while driving or merging. These failures could have led to accidents or left the vehicle disabled in traffic. Driver and children were present during each incident. The vehicle is enrolled in onstar and the mychevy app, which provide monthly health reports. Despite these incidents, no faults or warnings were ever shown in the reports. Vehicle remains available for inspection. A case is open with gm. Across 4 service visits, gm-certified dealerships failed to follow proper protocols, including code checks, drivability assessments, and test drives—contributing to delayed diagnosis of transmission failure.

The affected components are the electrical system, engine, and power train. In March 2025, my 2021 Chevrolet Tahoe displayed multiple warning lamps across the dash, including traction control and check engine lights. The vehicle shifted erratically and sometimes entered limp mode. I brought the vehicle to autonation Chevrolet south clearwater for inspection. The dealer replaced the battery, dismissed my concerns, and stated that a test drive was performed, but the mileage in and out on the invoice was identical, showing it never actually occurred. Diagnostic trouble codes (p0700, p0717, p2714, p2716, p0706, and multiple u-codes) were present but were not fully investigated. A gm technical service bulletin (21-na-149, December 2022) covers these exact symptoms (caused by engine wiring harness chafing), but it was never referenced or applied. Because the problem was not addressed, the condition worsened. By July 2025, the vehicle suffered a complete transmission failure. At that point, the dealer confirmed the issue, documenting transmission slipping, shuddering, noise, and additional codes (p0700, p077c, p17f6, p17fb, p1872). Gm increased its goodwill contribution from 15% to 40% of the $9,925 repair cost, while autonation offered only $500 despite their role in the missed diagnosis. Safety risk: my family and I were at risk each time the vehicle stalled, lost power, or shifted erratically while driving, including at highway speeds. These failures created a significant risk of collision. The drivability problem was not properly confirmed in March 2025 despite multiple codes being present. By July 2025, the dealer acknowledged and confirmed the transmission failure. The vehicle remains available for inspection, and I have retained all invoices, diagnostic reports, and communications with gm and the dealership.

The affected systems are the power train, engine, and electrical. My 2021 Chevrolet Tahoe experienced failures consistent with gm technical service bulletin 21-na-149 (engine wiring harness chafing) and the conditions outlined in recall n232404190 (valve body failure, November 2024). Beginning in March 2025, the vehicle displayed warning lights and messages including check engine, traction control, service transmission, and limp mode (reduced acceleration – drive with care). The vehicle shifted erratically, lost power, and occasionally failed to accelerate, creating a serious safety hazard at highway speeds. These problems were documented at autonation Chevrolet south clearwater, where multiple diagnostic trouble codes (p0700, p0717, p2714, p2716, p0706, and u-codes) were recorded but not properly investigated. No test drive was performed despite being claimed by the service technician, and the applicable TSB was not referenced. By July 2025, the condition worsened into a complete transmission failure, with additional codes (p0700, p077c, p17f6, p17fb, p1872). The dealer’s estimate required a full transmission replacement at nearly $10,000. Gm reviewed the case through its internal policy evaluation tool and increased goodwill assistance from 15% to 40%, while autonation contributed only $500. Gm’s partial contribution confirms the defect is recognized, yet this VIN remains excluded from the official recall. This issue placed my family and other motorists at significant risk, as sudden loss of power and shifting failures occurred during normal driving conditions. Dealer records, gm documentation, and photographs of warning messages are available. I request that NHTSA expand recall n232404190 to include affected vins such as mine, since the symptoms, diagnostic codes, and confirmed failures match exactly what gm has already identified as a known safety issue.

The stabilitrak notification comes on constantly. While we are driving/reversing and turn our steering wheel the whole car will shut down and the steering wheel jerks. It's happened multiple times. It takes forever for the car to turn back on. This is super dangerous and cause myself and my children to end up getting hit by another vehicle while on the road.

See all problems of the 2016 Chevrolet Tahoe 🔎.

Wipers failed during heavy rain in heavy traffic on 7/3/25. Wipers randomly started working. The wipers failed again during a heavy rain on 8/13/25 again in moderate traffic. Wipers failed during heavy rain, was unable to see while driving on an interstate. I was able to navigate to the shoulder of the highway but was very scary being on an interstate highway in heavy traffic. Dealership repair occurred on 8/14/25. No warnings of any kind prior to the failures.

Passenger side rear air conditioning blower motor caught on fire and burned vehicle out completely. Fire trucks called to put out fire but is completely burned out. My safety was at risk flames in back by the time I got stopped on highway. Thankful no one was riding in back seat. First issue I had with it and it torched the vehicle. No warnings on dash. Vehicle is waiting to be inspected by insurance adjuster.

See all problems of the 2001 Chevrolet Tahoe 🔎.

Failed ota update to information center (radio) has caused radio unit and screen to become inoperable. Blinkers do not sound when on, warning sounds when backup camera are in use no longer work, along with cross traffic warning due to this. It should be noted we did not consent to the ota update, and would have not wanted the update as it has caused damage to this system. Gm know this is an issue and has refused to fix this.

My 2020 Tahoe stabilitrak has gone off approximately 5 times over the past 2 months April and may of 2025 in one incident my vehicle did turn off all incidents were at low speeds less than 5 mph. Four of the incidents the stabilitrak light turned on and an audible beep, I also lost power to my steering and breaks. When I had the oil change the service tec at the dealer stated they can not test it unless the light was on? has anyone reported or experiences this issues what can be done to fix this issue. Please email me at [xxx] if you have any questions or helpful hints. Thanks [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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Instrument panel has failed twice and is unresponsive. The gauges move and stay to the left after moving left to right. All lights begin to cycle through error messages. I have video of the issue both times it happened. When it occurs, you don't know your speed you have to guess, the full tank reads empty etc. , and it is dangerous to back up. The vehicle has been diagnosed by one independent mechanic and is currently at the dealership. There was no warning before the instrument cluster failed other than a cycling through of warning messages service transmission check 4x4, service suspension system, service power steering drive with care. -the center screen goes in and out. -when in reverse, the rear camera is black, the screen blinks intermittently. - dealer has stated that the wires are put on incorrectly- if that is the case, I am not sure who would have done that other than the manufacturer. -previously reported there was a strong gasoline smell in the cabin that made it really hard to breathe. Dealer corrected. Right passenger side is intermittently wet with no cause from the interior creating stale smells, making it hard to breathe. It is important to note this is the side where the electrical wires are "put in incorrectly" according to the dealer. I also have a video of what occurs.

Truck want go over 62 miles heater comes on full blast truck reduces speed while drive and transmission want shift 4wd error comes on service climate system comes on the power steering error comes on the service esc and washer fluid system error comes on it seems like an electrical manufacture error with the truck.

The sounds from the radio works only 10% of the time, the radio sound also is what produces the turn signal blinking sound. Additionally there is a scratching noise coming from the speakers almost like a bad signal from the tuner. This is very distracting and a safety concern, especially when the turn signal does not audible make a sound. When I call chevy they say it will be $300 to diagnose, and if you look online this is a known issue amongst newer model chevy.

The 2015 Chevrolet Tahoe seems to be known for thermostat failure. My thermostat gauge while driving would drop from 210 to 160 and stay pinned on 160 and the fans would turn on. I was told by an auto body shop that it seemed to be electric issues. I also had a wire under the car catch fire and the auto body shop said that is why my standing lights would not work in the rear but my brake lights would work. It’s very dangerous that the electrical failure caused a fire to start under the car. Then, I ran into another issue just this week where the vehicle has a cracked ac condenser and is slowly losing coolant. It’s a manufacturing issue because all of them seem to crack and we’re not made with a proper seal. Another electrical issue I have is when I turn the wheel all the way to the left or right, even when the key is in and engine is on, the engine will shut off. The car completely shuts off and then I have to turn the key to the off position and then it will turn right back on. The steering wheel is also losing power steering and gets very tight when I have to make a turn. The fuses for my radio are blown and when you put new ones in, it blows immediately and doesn’t turn on. I have many issues with this vehicle and it’s obviously a manufacturer issue. This is not ok for a vehicle to all around have such horrible electrical issues. I have had issues driving over a pothole and I lose my radio screen or my whole dash screen and then the dealer and auto body shops say the electrical work is too in depth for them.

I tried to get the fan recall done. I went to countryside Chevrolet I'm franklin nc. They refused to do the recall. I just moved out of my house and have no address. I'm here, in franklin nc. Trying to get the recall completed, and I need to drive to wyoming, and I do not feel safe doing so until recall is complete. My life is in danger with the possibility of fire. And I am stuck in franklin nc until it is completed.

See all problems of the 2014 Chevrolet Tahoe 🔎.

The onstar module has failed. This part is the telematic control unit or tcu. This is a widespread issue with no eta of part replacement. This is an issue that is not often covered under warranty especially for vehicles outside of the age/mileage requirement of the company. This should be investigated and issued as a recall.

On may 9th, 2025 we had to have our 2022 Tahoe towed to the local dealership. There was a transmission error message and the battery was completely drained. The dealer put a new battery in it for $485 and we were told it was good to go. The next day, the car would not go into reverse. Had to have it towed back to the dealership and was told that the transmission failure was a recalled part and would be covered. Later we were called and told even though the part that had failed is in fact the same part in the open recall, that our VIN was not on the recall list and the cost to fix the vehicle would not be covered. In addition to all the headaches and money out of pocket (rental cars, tows, new battery) we now have to wait at least 4 - 6 weeks to receive the recalled part but since our VIN is not on the 2022 Tahoe recall list (even though it is the same part as the recall that failed), we are having to pay out of pocket for the repairs. Chevy needs to stand behind this recall and cover the cost.

We are apart of the safety recall with the potential brake and engine issues, we have contacted the dealership and they have no remedy at the current time for our defective vehicle. We contacted gm to request a buy-back due to the safety issues with the vehicle, told we did not qualify but they have no remedy for our defective truck. We do not fell safe in the vehicle, the brakes are sticking and the engine is making weird noises. We are currently seeking legal representation because we are being forced to drive around our family of 5 in an unsafe vehicle with no remedy or option to trade it in.

I along with many owners have experienced the widespread onstar/telematics module failures in the current generation Tahoe and gm vehicles, which cause onboard system outages like navigation, safety alerts, city emergency services, cellular connectivity, android auto/apple carplay, and even instrument cluster functions sometimes going offline. The part is often back-ordered with no eta, while gm denied warranty coverage causing the owner to pay for the replacement part and all labor.

Unknown but there was many lights on at the time of brake failure. I was driving home from florida to NJ with my four young children in the vehicle on a 65mph highway when all these lights came on, the brakes completely stopped working and it told me it was reducing speed to 62mph for safety because the brakes were failed. It also stated service svc. By the grace of god I was able to off-road it a bit to get it to slow down to a stop. The second time it happened was in my driveway parked. Inbetween the two incidents I brought my vehicle for regular service and asked them to look at the brakes again for me as this is a major safety concern as well as my transmission slipping and they complete refused and only changed my oil.

See all problems of the 2024 Chevrolet Tahoe 🔎.

The system that I believe to be failing has to do with electrical components of the 2017 chevy Tahoe. It has completely lost all power two times while driving this vehicle. In both instances, mine & my children's lives were at risk including those who could have hit us. If anyone had been behind me as I was turning and the car shut off mid turn, it's possible we could have been hit by a vehicle(s) going 50+ mph. It's available to you to be inspected if needed. The vehicle has been evaluated by a mechanic who says he cannot find any specific 'problem' but did have to turn off multiple error codes. The chevy dealership thinks it may have to do with the remote start antenna. This has not been reproduced by a dealer or service center but it has been reproduced by myself when I attempted to drive the car again after the error codes were turned off. I also have confirmation of this happening to another person who owns a 2017 suburban and after servicing the car they continue to have issues. They were entering onto a highway on the on ramp and their car completely lost power and stopped- I would hate to see what could have happened if this was on the highway itself as it could have had the potential of lives being lost. The only warning messages I have seen had to do with servicing the remote start, which has never worked for us despite having it worked on prior to purchasing the vehicle. There were messages about stabilitrack the first day this incident occurred but not the second time that it occurred. Both times the car will turn back on after about 5 minutes but it's as if the cars system was completely reset (clock at 12, radio setting default, etc). The fact that I know of one person with a 2017 chevy that this has also happened to, I believe an immediate recall should be initiated as I will not be driving this vehicle until there is an answer to save our lives and others on the road.

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The body control module does not work. A new bcm was installed in my car in April 2025. Since then I am having multiple issues, but the safety related issue is with the trailer braking system. It is available for inspection upon request. The dealership is unwilling to try another bcm without it costing me $600 for labor. If I am unable to use my brakes, then I put myself and others on the road at risk. The problem started with a tire monitor system. I was told I needed a bcm to fix the problem so the car would not throw codes. Now, I am being told the problems with the brakes are not comiing from the bcm. There was nothing wrong with my car until I took it to this dealership for a new key faub and a tire pressure monitor error. The body control module in a 2018 chevy Tahoe premier does play a role in controlling the sunroof. More specifically, the sunroof system is supplied power through a fuse located in the driver-side fuse box which is connected to the bcm. The sunroof switches communicate with the bcm via a serial data circuit, and the bcm then commands the sunroof to open or close. Therefore, the bcm acts a central hub in the electrical system of the vehicle and communicates with the sunroof control module to operate it. I learned this from two other dealerships. One dealership in west virginia and another dealership in texas told me this information about the bcm controlling the sunroof and many other electrical parts of the 2018 chevy Tahoe premier. To make it simple, the bcm was replaced. The vehicle is now having serious issues. I consider an unintended activation of the braking on the wheel which causes the vehicle to pull to one side puts me at risk of a crash. Is this yet another failed sensor or part due to the negligence of the service department at smith Buick when replacing the bcm and programming a key faub?.

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I filled my car up with gas and turned it on and it started shaking. Several warnings popped up on the dashboard screen including, service esc, service traction control, and forward collision system unavailable. My cruise control was disabled I had to hold my foot at an angle to keep the speed at 45-50 mph, causing it to take 10 hours for me to get home from austin to dallas. The check engine light was on the entire time and flashed for the last hour to hour and a half. I was unable to pull over at that time because it was dark and I was in the middle of nowhere by myself. The next day I turned my car on. The only thing on was the check engine light, is , however , around 1 pm that day it started doing the same thing. I drove it from my patient's house in allen to galleria Chevrolet in dallas. They told me my battery was too low to run diagnostics and I needed to replace it. So I bought a battery and brought it to them. They replaced the next morning and told me there were no codes showing up so there was nothing wrong with my car and it was a fluke. Exactly one week later the same thing happened to my car. I called the dealership and they hao it toewd to the service dept. After I repeatedly called them to check on the status of my car, they told me it was the fuel injector #1. They then were able to apply for a loaner car for me as I am a hospice nurse. These are same exact issues that the gm 6. 2 l engines are having with the recall they just announced. I have a 5. 3 l engine. I am afraid to put my kids in my car. Please help get gm to take responsibility for this!.

I was driving and the driver dash frozen. I couldn't tell my speed, it didn't indicate blinker or hazards. It would say I was in "d" when the car was parked. The center dash shut down completely. The seat belt indicator didn't work, none of the charging ports worked. **this is a rental car**** I do have video of the dash.

The contact owns a 2024 Chevrolet Tahoe. The contact stated that while her husband was driving at an undisclosed speed, the vehicle stopped at a traffic light and the engine unexpectedly shut off while the brake pedal was depressed. The transmission inadvertently shifted to neutral(n). The message to "push start to start engine" was displayed. The contact's husband pressed the auto start/stop button, but the engine failed to start. The contact's husband then shifted the transmission to park (p), pressed the auto start/stop button again, and the engine restarted. The vehicle was taken to the dealer, but the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 700.

The contact owned a 2022 Chevrolet Tahoe. The contact stated that, while driving at an undisclosed speed, the center console armrest suddenly burst into flames. The contact was able to pull to the shoulder of the roadway and evacuate the vehicle. Within moments, the front end of the vehicle became engulfed in flames. The air bags did deploy. Local emergency services were able to extinguish the flames but did not investigate the cause of the fire. The vehicle was towed to a tow yard and deemed a total loss by the contact's insurance provider. A fire report was filed. A police report was filed, and injuries were reported. The contact transported himself to an area hospital and was treated for a second-degree burn to his left pinky finger. The manufacturer was notified of the failure, and a case was opened. The contact was informed that the manufacturer intended to send a specialist to inspect the vehicle. The VIN was not available. The failure mileage was 73,000.

The electronic screen and computer function is failing. Phone calls are dropped and other functionality is failing including the information screen.

The check engine light illuminated cause us to park the vehicle until diagnosed. The diagnosis is the onstar system has failed causing the check engine light to illuminate. Even without paying the fee for onstar the light still illuminates rendering the vehicle “disabled” under indiana clean air requirements. They will not run the required emissions test to certify or plate your car with a check engine light on. The dealer stated the vehicle can still be driven however we will no longer know if there are ancillary issues because the check engine light goes on and off. Ironically this happened two months after a software recall performed by the dealer. If the vehicle is safe to drive with an onstar failure there should be no reason the check engine light illuminates taking attention away from more serious potential issues.