Driving my vehicle on the interstate at 70mph when the transmission made a hard downshift and brought my wife, two children, an infant and toddler, and I to a very sudden 40mph.Before I was able to find a shoulder to pull over the transmission fluid overheated and vehicle would no longer change gears. I then towed it to the dealership where purchased originally. Vehicle was then towed to and diagnosed at a Chevrolet dealership where ultimately resulted in a valve body and clutch failure.
Chevrolet Tahoe overheating problems
59 of the 10,079 owner complaints about the Chevrolet Tahoe describe engine overheating, most of them for the 2004 model year.
- owner complaints
- 59
- worst model year
- 2004
- typical mileage
- 93,000
Is there a fix? There is 1 recall for this area of the car. See below
By model year
Often reported together
Engine failure 8Check engine light 6Fuel pump 5Power steering loss 3Fuel leak 3Won't shift 2Stalling 2Slipping 2
Trouble codes mentioned
P2459 1P0430 1
What owners say
The contact owns a 2023 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power and was unable to restart. The message "Engine Overheating - Stop Driving Immediately" was displayed. The vehicle was towed to the dealer, who determined that the engine had failed, and the engine was replaced. The manufacturer was notified of the failure by phone. The failure mileage was 32,295.
Driving the vehicle down the highway at approximately 65 miles per hour, the check engine light came on and the engine went into limp mode, slowing immediately. Upon getting the vehicle to the left shoulder on a busy highway, the vehicle displayed "engine overheating", "battery low", and 0% oil life. A full oil and filter change had been done less than 1000 miles ago and upon checking the oil, it was at the correct level. The engine completely failed and is not being replaced at a Chevrolet dealership. I completed the recall N252494003 on March 5th, 2026 which comprised of an engine inspection, higher viscosity oil, a new oil cap, filter replacement, and owner's manual insert. The engine still failed and required replacement despite having this done.
During highway driving, alert on dashboard stated “electrical system failing enter idle mode”. Tahoe slowed down and then engine began knocking right as it shut off resulting in needing to coast to the shoulder of the highway safely since engine was off. Towed to dealership and then they came back saying needed a new battery, new alternator belt, pulley and water compartment. After those installed, additional call was made indicating the engine needed a full replacement as it keeps overheating despite no sensor alerts and codes are being tripped. Here we are asked to pay 16K for new engine install and unable to fix.
The contact owns a 2026 Chevrolet Tahoe. The contact stated that after making a long-distance trip, the check engine warning light illuminated. Additionally, the side mirrors were moving independently, and the vehicle failed to start after several attempts. The vehicle eventually restarted the following day, and the contact stated that the check engine warning light turned on the drive to the residence. The vehicle was taken to a dealer where a code reader was used to diagnose the vehicle. The contact was informed that since the check engine warning light was off, the dealer was unable to determine the cause of the failure. The vehicle remained with the dealer overnight and a multi-point inspection was performed, but the dealer found no cause for the failure. The contact stated while driving 60 MPH, the vehicle unexpectedly stopped in the middle of the highway. The vehicle hesitated while depressing the accelerator pedal, with the check engine warning light illuminated, and the messages "Change Engine Oil Soon" and "Engine Overheating Turn Off Vehicle" displayed. The contact was unable to move the vehicle and was forced to turn on his hazard warning lights due to the failure. The contact called 911 and Highway Patrol assisted with moving the vehicle off to the shoulder. Due to the failure, the vehicle was towed to another Chevrolet dealer before being towed back to the original dealer. The vehicle remained with the dealer. The contact was informed two days later that the vehicle had been repaired; however, the contact no longer believed that the vehicle was safe. The contact no longer wanted the vehicle. The manufacturer was notified of the failure and a case was filed. The contact was later informed that the vehicle did not qualify for a buyback. The failure mileage was 897.
2021 tahoe with 3.0L diesel engine and 139k miles recently began overheating when on interstate but temp would jump up quickly then quickly back down. Reduced acceleration mode is triggered and AC is turned off automatically. Diagnostic report shows coolant control valve error code and it was explained to me that valve is sticking then as engine pressure rises, it knocks it loose again explaining the quickly jumps and dips in temp. Fan runs constantly from moment it is started too. When looking for the part online to get an idea of repair cost, there was a bulletin about this being a known issue in the 2021 tahoes with the diesel engines and bulletin states GM extended special coverage for 15yrs/150k miles. When I called dealer to schedule service, I was told this bulletin doesnt come up under my vin number despite it having the same issues, error codes, year, make, model, and engine.
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 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.
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 federal safety agency Hotline to file a vehicle safety complaint. The failure mileage was 100,000.
Transmission is overheating and forcing the truck into limp mode
Related recalls
Engine and engine cooling: engine: hard parts internal/mechanical
- What is wrong
- General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.
- Risk
- Engine failure increases the risk of a crash.
- Remedy
- Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification letters were mailed June 18, 2025. Owners may contact Cadillac customer service at 1‑800‑333‑4223, Chevrolet customer service at 1‑800‑222‑1020, or GMC customer service at 1‑800‑462‑8782. GM's number for this recall is N252494000.
Recall number 25V274000 · Recall details
Questions about the Chevrolet Tahoe overheating
Which Chevrolet Tahoe years have engine overheating problems?
The model years with the most reports are 2004 (12 complaints), 1996 (6 complaints) and 2005 (5 complaints).
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