SERVICE BRAKES
General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.
Remedy: GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.
652,967 vehicles affected
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING
General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.
Remedy: GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.
652,967 vehicles affected
ELECTRONIC STABILITY CONTROL (ESC)
General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.
Remedy: GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.
652,967 vehicles affected
Valve lifter issue. Gm service told me 15000$ engine replace. 1 year no used the vehicle. I buy the vehicle 35000$. no recall or warranty. Have to much people this problem. And a gm just laughing at how the vehicle owners behaved.
At 64000 miles my 2019 Chevy Tahoe has to be replaced due to lifters failing. GM/Chevy wants to charge me $17000 to install a new 6.2L - V8 engine. (Same engine that had the lifter problem). That engine has been recalled on earlier and later models. What do I do to fight the cost of new motor ?
At 64000 miles my 2019 Chevy Tahoe has to be replaced due to lifters failing. GM/Chevy wants to charge me $17000 to install a new 6.2L - V8 engine. (Same engine that had the lifter problem). That engine has been recalled on earlier and later models. What do I do to fight the cost of new motor ?
At 64000 miles my 2019 Chevy Tahoe has to be replaced due to lifters failing. GM/Chevy wants to charge me $17000 to install a new 6.2L - V8 engine. (Same engine that had the lifter problem). That engine has been recalled on earlier and later models. What do I do to fight the cost of new motor ?
2019 Tahoe Chevrolet purchased in October 2025 and engine locked up in January 2026 when Engine Valve Lifter went out. I kept car serviced. Went to start vehicle one morning and it started making the loudest noise as if it had bad gas. Found out lifter was gone out and locked the engine.
The contact owns a 2019 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the vehicle unexpectedly stalled while attempting to shift gears. There was no warning light illuminated. The vehicle was able to be restarted. The vehicle was towed to an independent mechanic, where it was diagnosed that metal shavings were found in the transmission, causing the transmission to fail. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The manufacturer was made aware of the failure. The approximate failure mileage was 127,000.
What component or system failed or malfunctioned, and is it available for inspection upon request? Complete engine failure. 2nd time this engine failed cylinder 4 bent rod. Cylinder 7 and camshaft. How was your safety or the safety of others put at risk? Yes. Loss of power on busy highway. Trying to navigate to the shoulder through 5 lanes of high speed traffic. Has the problem been reproduced or confirmed by a dealer or independent service center? Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Yes. I have a copy of a manufacture technical bulletin confirming the problem and service records. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No1
What component or system failed or malfunctioned, and is it available for inspection upon request? Complete engine failure. 2nd time this engine failed cylinder 4 bent rod. Cylinder 7 and camshaft. How was your safety or the safety of others put at risk? Yes. Loss of power on busy highway. Trying to navigate to the shoulder through 5 lanes of high speed traffic. Has the problem been reproduced or confirmed by a dealer or independent service center? Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Yes. I have a copy of a manufacture technical bulletin confirming the problem and service records. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No1
Odometer Fraud. The contact purchased a 2019 Chevrolet Tahoe. The contact discovered that there was a mileage discrepancy after the purchase of the vehicle. The vehicle was an independent dealer sale. At the time of purchase, the vehicle mileage was 135,000. It was later discovered, upon checking with an OBD2 Scanner, that the mileage was 220,145. In addition, upon checking Carfax, the mileage was 134,426.
Ticking sound started from the motor and the check engine light came on. We took it to the dealership and was informed the vehicle had bad lifters with a bent push rod needing a full motor replacement. The vehicle has 92k miles and was purchased a year and a half ago from that same dealership. The vehicle is currently at the dealership awaiting costly repairs.
This is the date I first took the vehicle to a dealership. The Transmission has performed poorly and the wiper would not work at all and it was not a fuse problem. Transmission finally failed and had to be replaced (6/25) but car is in a dealership for the 3rd time for windshield wipers. They do not work so car is dangerous. You leave home with no rain and then there is rain and wipers sometimes worked, most of the times they did not. On 6/25 they would not address the issue as wipers worked in High speed (but only on high speed). 3 months later they did not work at all. It did not rain in LA so not concerned, but now it is. This is a serious system design flaw. The replaced complete wiper blade system, but The relays on the bottom of the fuse box control the wiper blades. I have the Z71 off-road package as I drive off-road and in snow conditions. This car was designed poorly as this is a 4x4 vehicle and moister should not effect the electrical system nor a safety device like the windshield wipers. This is a potential recall issue to properly fix the problem. Sadly the majority of vehicle owns just drive on the highway, but others have reported windshield wiper failures.
This is the date I first took the vehicle to a dealership. The Transmission has performed poorly and the wiper would not work at all and it was not a fuse problem. Transmission finally failed and had to be replaced (6/25) but car is in a dealership for the 3rd time for windshield wipers. They do not work so car is dangerous. You leave home with no rain and then there is rain and wipers sometimes worked, most of the times they did not. On 6/25 they would not address the issue as wipers worked in High speed (but only on high speed). 3 months later they did not work at all. It did not rain in LA so not concerned, but now it is. This is a serious system design flaw. The replaced complete wiper blade system, but The relays on the bottom of the fuse box control the wiper blades. I have the Z71 off-road package as I drive off-road and in snow conditions. This car was designed poorly as this is a 4x4 vehicle and moister should not effect the electrical system nor a safety device like the windshield wipers. This is a potential recall issue to properly fix the problem. Sadly the majority of vehicle owns just drive on the highway, but others have reported windshield wiper failures.
My 2019 Chevrolet Tahoe Premier equipped with the 6.2L V8 engine has experienced a major internal engine failure. The dealership diagnosed camshaft bearing failure with a recorded misfire on cylinder #5. The engine oil was drained and inspected and no significant metallic debris was found, and the dealership noted no evidence of abuse or neglect. Intermittent drivability concerns were present over the life of the vehicle and were addressed through professional diagnosis and repair each time. The vehicle has been properly maintained since new. Just months prior to this failure, the vehicle underwent full diagnostics and significant repairs, and no internal engine failure was identified. This failure appears consistent with a known defect pattern affecting GM 6.2L engines involving internal valvetrain or camshaft-related failures. The failure resulted in abnormal engine noise, misfire, loss of power, and the vehicle becoming unreliable for safe operation. General Motors has declined goodwill assistance citing warranty expiration, despite the nature of the failure being a non-wear internal engine defect. I am submitting this complaint so this VIN and failure can be reviewed as part of any ongoing investigation into 6.2L engine failures.
I also had this issue with my prior gmc 2017 yukon until i traded it in.. My currently 2019 chevy tahoe premier has always had services done when required with milage needed. My issue While driving viechle on freeway knocking with shaking sound in engine. Engine light would turn on. Even though with tune-ups oil changes done this problem still continued. Now my car is sitting on driveway and cant drive it
The automatic transmission on my 2019 Chevrolet Tahoe has failed prematurely at approximately 88,000 miles. The dealership confirmed internal transmission damage, specifically that Solenoid #3 in the valve body is sticking and not engaging, which requires a complete transmission replacement. Their written inspection states: “Possible internal damage in transmission. Solenoid 3 in valve body is not engaging.” The component is available for inspection upon request. Safety Risk: This malfunction created several dangerous situations. The vehicle hesitated, struggled to shift into gear, and at times moved forward while in reverse. These symptoms could cause loss of control, delayed acceleration when entering traffic, or unexpected movement putting myself and others at risk. Diagnosis Confirmation: Yes. The problem has been fully inspected, reproduced, and confirmed by an authorized Chevrolet dealership service center. They provided a written estimate of $8,669.59 for a complete transmission replacement. Inspection by Others: The transmission has been inspected by the dealership where the vehicle was purchased. No independent mechanic, police, or insurance representative has inspected it yet, but the dealership’s findings are available. Warning Lamps or Symptoms: Prior to the failure, I experienced hesitation, difficulty engaging gears, harsh shifting, and the vehicle lunging forward while in reverse. Shortly after these symptoms appeared, both the check engine light and tire pressure light came on. Additional Context: GM has released multiple Technical Service Bulletins (TSBs), including 19-NA-153 and 21-NA-199, addressing known issues with their 8-speed transmissions such as harsh shifting, slipping, and valve body/solenoid problems. This suggests a broader pattern of defects. GM and the dealership offered only 10% goodwill assistance, leaving almost the entire repair cost to the consumer, despite this being an internal mechanical defect with normal personal use.
Hit a road sign at 45mph - airbags did not deploy.
Crash
Alignment and suspend has vehicle shaking,rumbling and shifts all over when hitting a bump in road. J.B.A. Chevrolet had detected alignment/suspension problem. Had check engine light come on but Carmax claimed it was a history code. The transmission had to be replaced. Still experiencing multiple problems with said vehicle.
Alignment and suspend has vehicle shaking,rumbling and shifts all over when hitting a bump in road. J.B.A. Chevrolet had detected alignment/suspension problem. Had check engine light come on but Carmax claimed it was a history code. The transmission had to be replaced. Still experiencing multiple problems with said vehicle.
Alignment and suspend has vehicle shaking,rumbling and shifts all over when hitting a bump in road. J.B.A. Chevrolet had detected alignment/suspension problem. Had check engine light come on but Carmax claimed it was a history code. The transmission had to be replaced. Still experiencing multiple problems with said vehicle.
The contact owns a 2019 Chevrolet Tahoe. The contact stated that the vehicle was consuming an excessive amount of engine oil. While driving at 30 MPH, the vehicle stalled consistently while shifting gears. There were no warning lights illuminated. Upon investigation, the contact linked the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The vehicle was taken to three independent mechanic,s who indicated that the failure was related to the engine. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 120,000.
When I get up to a certain speed the car begins to shake. Tires were checked for balance. My public records show a recall # N192261050. I have the Product Safety Recall and it describes this issue in the recall. I bought the car in 2023 and just began experiencing this in June of 2025. It only happens while driving 60-70mph. Have not have this fixed thinking it was a road issue but have had several more incidents with this happening and now it's a safety concern.
The contact owns a 2019 Chevrolet Tahoe. The contact stated that the vehicle was consuming an excessive amount of engine oil. While driving at 30 MPH, the vehicle stalled consistently while shifting gears. There were no warning lights illuminated. Upon investigation, the contact linked the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The vehicle was taken to three independent mechanic,s who indicated that the failure was related to the engine. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 120,000.
While driving on the expressway I heard a rattling noise coming from my undercarriage, by the time I got off my exit the sound got louder, I attempted to make it home and when I pulled in my driveway, and popped the hood, fluid starting pouring out the bottom as well as splashed on other components. Upon further inspection it was determined that the fluid was coolant. There was no dashboards lights or warning signs indicating that something was wrong or that my car was at risk of overheating. I had the vehicle towed to an auto repair shop and the following was diagnosed and repaired: •Water pump •Cooling System •Engine Water pump •Engine Coolant thermostat housing assembly. •Serpentine Belt
While driving on the expressway I heard a rattling noise coming from my undercarriage, by the time I got off my exit the sound got louder, I attempted to make it home and when I pulled in my driveway, and popped the hood, fluid starting pouring out the bottom as well as splashed on other components. Upon further inspection it was determined that the fluid was coolant. There was no dashboards lights or warning signs indicating that something was wrong or that my car was at risk of overheating. I had the vehicle towed to an auto repair shop and the following was diagnosed and repaired: •Water pump •Cooling System •Engine Water pump •Engine Coolant thermostat housing assembly. •Serpentine Belt
The contact owned a 2019 Chevrolet Tahoe. The contact stated that while driving on a winding road during a rainstorm at 15 MPH, she briefly lost control of the vehicle and left the roadway, coming to a complete stop after colliding with a tree. The impact of the collision was severe that the front passenger side wheel became detached. The air bags did not deploy. No warning lights were illuminated. The vehicle was towed to an independent mechanic, who had yet to determine why the air bags did not deploy, however, the contact was informed that the vehicle may be deemed a total loss by her insurance provider. A police report was not filed, but minor injuries were reported, which the contact attributed to the fact that the air bags did not deploy. The contact sustained a small bruise on her chin and a contusion across her chest, but did not seek medical treatment immediately following the accident. Surprisingly enough, the chest contusion had yet to heal 2 weeks after the injury was sustained. Alarmed, the contact consulted her primary care physician, who then scheduled an X-ray for a later date. The manufacturer was not notified of the failure. The failure mileage was unknown.
Crash
1 injured
The contact owned a 2019 Chevrolet Tahoe. The contact stated that while driving approximately 40 MPH straight during heavy traffic, the vehicle was T-boned and crashed into a second vehicle, causing severe damage to the front end of the vehicle. During crash the air bag did not deploy. The contact sustained fractured ribs and an injured neck and was transported via ambulance to the local hospital. A police report was taken, and the vehicle was destroyed and towed away. The cause of the failure was not determined. The local dealer and manufacturer were not notified of the failure. The failure mileage was 29,900.
Crash
1 injured
The contact owns a 2019 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the navigation system screen image was jumping and flipping, and occasionally failed to display an image. The contact also stated that there were other images displayed on the screen. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was determined that a software update was needed. The vehicle was repaired, but the failure recurred. The manufacturer was contacted, and confirmed that the VIN was not under recall. The failure mileage was approximately 40,550.
My vehicle seems to be experiencing the same issue detailed in Safety Recall N242454440 https://static.nhtsa.gov/odi/rcl/2024/RMISC-24V797-1898.pdf
90k miles on my 2019 Tahoe. Mechanic said I need a new transmission?? What are my options. My VIN isn’t showing a recall. How can GM get away with this issue and not replace???
The contact owns a 2019 Chevrolet Tahoe. The contact stated that while driving approximately 25-30 MPH, a message advising that the transmission fluid was overheating and to pull over was displayed. The contact coasted to the side of the road where, the vehicle became inoperable. The vehicle was towed to a certified mechanic, who diagnosed that the transmission fluid was burnt, causing the transmission to slip while switching gears. The mechanic informed the contact that the failure was a known issue and to contact the dealer. The dealer was contacted and informed the contact the VIN was not included in a recall. The vehicle was not repaired. The manufacturer was informed of the failure and confirmed that the VIN was not included in a recall. The manufacturer referred the contact to the NHTSA Hotline to file a vehicle safety complaint. The failure mileage was 100,000.
The 2019 Chevy Tahoe at 92000 miles is having lifter problems and a failing engine due to the DFM system. This is a 5.3L V8.
Active Fuel Management for the automobile variable displacement technology was the issue. 6.2L V8 L87 engine has created the following issues- Cylinder deactivation issues transmission issues Multiple camshaft issues include camshaft lift issues Fuel system problems
Wheels corroded internally causing beed to not seal correctly. Dealer said it’s a “known” problem with Aluminum wheels and offer no warranty or coverage beyond normal warranty on vehicle. Tire shops say it is a known issue.
Active Fuel Management for the automobile variable displacement technology was the issue. 6.2L V8 L87 engine has created the following issues- Cylinder deactivation issues transmission issues Multiple camshaft issues include camshaft lift issues Fuel system problems
On 10/23/24 the vehicle's 6.2 L L87 engine seized while driving on a state highway (similar to the later models already under recall) putting myself and other drivers at risk through a sudden loss of power and speed. The component was inspected at a GM dealership and then replaced AT MY COST. The replacing mechanic said the failure was in the rod bearings (the same as in the recalled engines). There were no warnings or related problems prior to the sudden failure. The existing recall ( Investigation:PE25001) needs to be expanded to these earlier model (2019 and 2020) engines that have the exact same issue.
While attempting to accelerate to merge onto interstate/freeway from highway speed of 55mph, experienced significant engine misfire & loss of speed. This happened less than 40 days after purchase of this used vehicle from local dealership, with 30 day "warranty". Vehicle is currently NOT safe to drive.
While attempting to accelerate to merge onto interstate/freeway from highway speed of 55mph, experienced significant engine misfire & loss of speed. This happened less than 40 days after purchase of this used vehicle from local dealership, with 30 day "warranty". Vehicle is currently NOT safe to drive.
I purchased my 2019 Chevrolet Tahoe in April of 2019 with 4 miles on the dashboard. My vehicle is Currently in the shop where I purchased the vehicle. It’s been there going on 3 weeks now. I was driving and my vehicle started losing power. I’m traveling on the highway at the time and my vehicle engine light came on as well and I couldn’t go over 30 without the vehicle losing power. I pulled over just in time before it shut down almost causing an accident .I have been servicing this vehicle 4 months after purchasing it. I’ve had better at a buy here pay here lot. And now I’m without a vehicle due to the Liner needs replacing. I was told they had to drop the entire motor to do so. My vehicle has 80,000 + now and I definitely shouldn’t be replacing this component. There are other things going on as well but I’m unaware of the name. Also I purchased Every warranty there was to buy when I purchased this vehicle and the dealership failed to acknowledge any one of them. So lucky I had another warranty company to bag me up and they are the ones paying this 4to 5,000 dollars repair. I’ve also had to service the Trailer brake system several times.. NEVER used it since I’ve had the vehicle.. until I asked them to just disconnect it because it wouldn’t stop. Also 4 months of having the very.. the custom rims ( back passenger side) broke from the inside almost causing me to go into ongoing traffic on the opposite side of the road.. and nearly flip. Meanwhile All this is coming out of my pocket to fix.. except for this engine repair.. but I do pay the deductible. Many is telling me to get an attorney. But I reached out 1st since I seen where there is a recall but it’s not saying my year of vehicle. Please help. Also. I’m still receiving my oil changes from the dealership. And I get them on a regular. NOTE: The shop that has my vehicle is Not the one listed on the document. But this is what the diagnostic read. And this is what’s being done to my vehicle.
I purchased my 2019 Chevrolet Tahoe in April of 2019 with 4 miles on the dashboard. My vehicle is Currently in the shop where I purchased the vehicle. It’s been there going on 3 weeks now. I was driving and my vehicle started losing power. I’m traveling on the highway at the time and my vehicle engine light came on as well and I couldn’t go over 30 without the vehicle losing power. I pulled over just in time before it shut down almost causing an accident .I have been servicing this vehicle 4 months after purchasing it. I’ve had better at a buy here pay here lot. And now I’m without a vehicle due to the Liner needs replacing. I was told they had to drop the entire motor to do so. My vehicle has 80,000 + now and I definitely shouldn’t be replacing this component. There are other things going on as well but I’m unaware of the name. Also I purchased Every warranty there was to buy when I purchased this vehicle and the dealership failed to acknowledge any one of them. So lucky I had another warranty company to bag me up and they are the ones paying this 4to 5,000 dollars repair. I’ve also had to service the Trailer brake system several times.. NEVER used it since I’ve had the vehicle.. until I asked them to just disconnect it because it wouldn’t stop. Also 4 months of having the very.. the custom rims ( back passenger side) broke from the inside almost causing me to go into ongoing traffic on the opposite side of the road.. and nearly flip. Meanwhile All this is coming out of my pocket to fix.. except for this engine repair.. but I do pay the deductible. Many is telling me to get an attorney. But I reached out 1st since I seen where there is a recall but it’s not saying my year of vehicle. Please help. Also. I’m still receiving my oil changes from the dealership. And I get them on a regular. NOTE: The shop that has my vehicle is Not the one listed on the document. But this is what the diagnostic read. And this is what’s being done to my vehicle.
While attempting to accelerate to merge onto interstate/freeway from highway speed of 55mph, experienced significant engine misfire & loss of speed. This happened less than 40 days after purchase of this used vehicle from local dealership, with 30 day "warranty". Vehicle is currently NOT safe to drive.
Purchased a used (128k miles) 2019 Chevrolet Tahoe LT. First month of driving (not for everyday use) noticed some strange transmission and engine hesitations when reversing. Notified the dealership and was told the transmission needed reprogramming. They reprogrammed and the problem though less noticeable, still persisted. Contacted the local and the purchased dealership to let them know of the persistent issues. Purchase dealership had me bring the vehicle back where I was told the vehicle needed a new transmission. Vehicle had less than 600 miles since my purchase. I was told it was $10k and I was liable due to the expiration of the limited warranty. Let them know these issues were identified and not fixed during the warranty period. Dealers fixed the vehicle but still charged me almost $4k. With the new transmission in place, I still noticed an engine hesitation, as if it was missing. Had new plugs installed but still no luck. Was told that cylinder deactivation may have caused lifter issues. Took it to my local dealer and thought the issue was obvious, they said they couldn’t find the issue. I was charged $300 for a non diagnosis or fix. The issue still persist
Lot white smoke for tail pipe, noise came in the motor, leak gas for tailpipe
Lot white smoke for tail pipe, noise came in the motor, leak gas for tailpipe
I removed the carrier from my vehicle to clean below it and found two parts on the base that connect the seat / carrier to the base are broken.
Not power, lot blue smoke, excessive consumption of engine oil, noise in the motor, like something is broken in it.
Not power, lot blue smoke, excessive consumption of engine oil, noise in the motor, like something is broken in it.
When slowing down and accelerating there is a shutter and a jerk to my transmission. While I am driving the shuttering is sometimes so loud I can hear it over the radio and it is a vibration motion.
Transmission needed replacing at 110,000 miles. Torque converter went bad
Driving on the interstate when all the sudden there was no power to drive train, the rpm gauge red lined. I put gear shift to neutral and rpm gauge came down, at this time no check engine light. Coasted to exit and parked. Got out and look around Tahoe for damage none found, looked under hood and no damage or fluid anywhere, none found. Got back in Tahoe and shifted into drive. I drove on 2-line highway to nearby town; 25 mph is all it would go. There was not a chevy dealer in town, stop at a Ford dealership and they sent me to an independent shop. Check engine light came on as I drove to independent dealer. Independent dealer checked for codes found transmission he checked fluid level it was full, but fluid smelled burnt and had metal shavings. He pulled it into shop and dropped fluid pan, to visually verify transmission parts were bad. He had to install a new gm transmission.