2016 Hyundai Tucson: stuck in gear or won't shift

Filed Sep 9, 2026 · Electrical, Engine · NM

The vehicle unexpectedly entered 'Limp Mode' due to engine tracking code P1326. The vehicle severely restricts engine power and RPMs while driving on public roads, preventing normal acceleration. This creates a severe safety hazard as the vehicle cannot safely merge into oncoming traffic, accelerate away from intersections, or maintain basic road speeds, putting me at a high risk of being rear-ended.The fault is under Hyundai Theta II Txxm. I have been given the runaround by both hyunday corporate and the local dealer.

Filed Jun 12, 2026 · Acceleration, Engine · NC

The vehicle severely shudders, jerks, and hesitates from a stop and while making a turn, during both acceleration and deceleration, making it entirely unsafe to drive. The vehicle has been completely un-driveable for the past 6 days. The check engine light illuminated, and on 4/9/26, the dealer documented a failed transmission judder test and kept the car, issuing a loaner. A temporary software patch failed after two weeks. Upon return, the dealer reported they were unable to recreate the problem, recommended returning when the vehicle demonstrates the problem more frequently, and refused to mechanically repair the dual-clutch transmission under my active original-owner 100,000-mile powertrain warranty, basically instructing me to continue to drive a seriously un-safe vehicle. Most recently, a yellow dashboard warning light illuminated, and the vehicle entered a dangerous 'limp mode,' severely restricting power and struggling to move before the light cleared after cooling down. The vehicle is completely un-driveable and parked.

Filed Mar 18, 2026 · Engine · CA

Vehicle: 2016 Hyundai Tucson Issue Category: Engine / Powertrain / Vehicle Safety Complaint: I am reporting a serious safety issue involving my 2016 Hyundai Tucson equipped with a Theta II engine. My vehicle first displayed an engine oil warning light. I immediately took the vehicle to an authorized Hyundai dealership, where I was charged approximately $500 for an oil change and diagnostic testing. I was told there were no issues with the vehicle. Within approximately 20 miles of leaving the dealership, the vehicle suddenly entered limp mode while driving and displayed diagnostic code P1326. This created a dangerous situation as the vehicle lost power unexpectedly. I returned the vehicle to the dealership, where a software update was performed. However, within another 20–30 miles, the exact same issue occurred again, with the vehicle entering limp mode and triggering code P1326. Hyundai has now refused to repair the engine under warranty and is attempting to attribute the issue to a catalytic converter problem, despite the presence of code P1326, which is associated with engine rod bearing failure and is part of a known defect affecting these vehicles. This condition presents a significant safety risk, as the vehicle can lose power suddenly while driving, increasing the risk of a crash. I believe this issue is directly related to the known Hyundai Theta II engine defect, which has been the subject of recalls and a class action settlement. I am requesting that the federal safety agency investigate Hyundai’s handling of these failures and their refusal to repair vehicles experiencing known engine defects that pose a safety risk

Filed Feb 3, 2026 · Engine, Transmission · 125,000 miles · OH

The contact owns a 2016 Hyundai Tucson. The contact stated that the check engine warning light was illuminated, and there was a ticking sound coming from the front of the vehicle. The vehicle was taken to Auto Zone, where a mechanic diagnosed the vehicle with a knock sensor failure. The knock sensor was replaced. The mechanic informed the contact that the vehicle was included in Manufacturer Campaign: CS966 for the transmission control module (TCM). The vehicle was taken to the dealer, who confirmed that the vehicle was included and the software update was performed. After the vehicle was repaired, the check engine warning light was no longer illuminated; however, approximately 30 minutes later, the vehicle failed to exceed 35 MPH, and the check engine warning light started flashing. The vehicle was returned to the dealer, and the contact was informed that the software update caused the vehicle to enter LIMP Mode to protect the engine. The dealer informed the contact to drive the vehicle for 30 days or a total of 500 -1000 miles, and if the vehicle continued to enter LIMP Mode or failed to operate as needed, to return the vehicle for the engine to be replaced. There were no additional repairs performed. The manufacturer was not informed of the failure. The failure mileage was approximately 125,000.

Filed Jan 7, 2026 · Engine · 90,000 miles · CA

The contact owns a 2016 Hyundai Tucson. The contact stated that after coming to a complete stop, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The vehicle went into LIMP Mode. In addition, the vehicle failed to accelerate above 30 MPH. No warning light was illuminated. The vehicle was taken to several dealers. The contact was informed that the unknown hoses and the dipstick melted inside due to the engine overheating. The contact stated that the catalytic converter was replaced; however, the failure persisted. The contact stated that the catalytic converter had been replaced three times since the first failure. The contact stated that on a separate occasion, the engine was consuming an excessive amount of engine oil. The contact was adding engine oil every two weeks. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The failure was a recurring failure, and the contact drove the vehicle intermittently due to the safety concerns. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.

Filed Oct 16, 2025 · Engine, Transmission · OK

My Tucson has been using an absurd amount of oil for the past 30,000 plus miles i had it in the shop for repairs for the exhaust/ turbo leaking due to broken stud bolt that finally was covered under warranty. But did nothing for the burning of oil. No oil leaks. It used a quart for every 500 miles. Now no warranty left i have a cylinder #1 misfire and have replaced sparkplug and will not come out of limp mode. Within a mile of driving the plug is oil fouled and goes back into limp mode. Probably will get no help from Hyundai to rebuild/ replacement of the motor.

Filed Mar 10, 2025 · Acceleration, Engine · CA

car is in limp mode,will not accelerate.Oil consultant over a few years.Dealership has requested new engine twice and denied by Hyundai USA.i have to put flashers on just to get on highway so im not killed.I will drive down the street and back and my engine will be extremely hot for hours.I am limited to my hometown only.I can not go out of my hometown due to heat of engine and blowing hoses and water pumps which has happened.This car is a danger and I am in financial burden to high repairs and excuses from dealerships.i have spent over 16,000 dollars and 3 catalyc converters later due to clogging ,in result to oul consumption.This car is a lemon and has ruined my life for the last 3/4 years.lots of stress and financial expenses only to have the same problem

Filed Sep 26, 2024 · Engine, Fuel system · NJ

I had my top engine block (not sure why not a full engine replacement) replaced under warranty June 2023. Shortly after the fix my AC unit stopped working. Once I got my AC unit fixed, about 1.5 months after my engine was not performing. My car would not turn over and when it did, it was in limp mode and would not run properly. I had it towed to dealership who could not find the issue until after they took out of the bay and went to move it, it wouldn't start. They replaced the crankshaft positioning sensor and it wasn't covered under the extended warranty. The top engine block only has 10k warranty which is fast approaching. Took car home and when accelerated past 60 car shakes and when i brake car shakes. Now car cabin smells of gas. All cars with KM are having multiple issues. Dealership not calling back regarding gas issue and has not responded to if they touched my tires. Local Mechanic said all my wheels were unbalanced.

Filed Feb 9, 2024 · Engine · 90,000 miles · GA

The contact owns a 2016 Hyundai Tucson. The contact stated that while his daughter was driving 25 MPH, the vehicle stalled. There was a rattling sound coming from the vehicle. The vehicle then entered LIMP Mode. The check engine warning light was illuminated. The driver was able to drive to the side of the road. The vehicle was towed to the local dealer, where it was diagnosed that the engine had seized due to rod bearing failure. The vehicle was not repaired. The dealer informed the contact there was no warranty coverage on the vehicle. The vehicle was taken to an independent mechanic, who informed the contact about an Extended Warranty coverage. The manufacturer was contacted and declined to authorize the repair. The contact stated that the failure was related to TSB Number: 22-01-023H-2 (Engine and Engine Cooling). The failure mileage was approximately 90,000.

Filed Jan 22, 2024 · Engine · VA

The check engine light came on in my 2016 Tucson , which only had 77K in mileage. I had it towed to a Hyundai dealership in Richmond, VA. They reported that there was a rod beading issue which would require a total engine rebuild for $15k. I have since learned that there was a class action lawsuit against Hyundai. This recall included the Theta II engine, not the engine in my 2016 Tucson, which is a 1.6 Turbo. The defective part in the Theta II engine is the same defective part in the 1.6 Turbo. When the engine malfunctions, it can cause the engine to go into limp mode which prevents acceleration, it can cause the motor to seize up, or it can cause engine fire. When I contact Hyundai customer service and explained my concern with the engine not being covered in the lawsuit, they admitted that it probably should have been. While the dealership is blaming the issue on a missed oil change, it is a known fact that this is an ongoing issue with the engine. I have documentation attached from my local mechanic sharing the notification Hyundai Technical Service Bulletin. I have since done a lot of reading about the issue with this motor and I have joined several social media groups whose members have all had issue with these engines. These cars are pose a safety risk to the driver and others on the road. They should all be recalled. Please let me know if you require any additional information from me.

Filed Nov 1, 2023 · Engine · TN

The engine has continuously thrown itself into limp mode, unable to exceed 2,000 RPMS and 60mph. It has been in and out of the dealership for the past 6 months as they have zero idea of what’s going on. This all started a month after some software updates were done. Car had zero mechanical issues prior. Car has no audible knocking or engine failure symptoms. I’ve spent atleast $2,000 out of pocket to attempt to get the car fixed with no luck. When I get the car back everytime, it goes into limp mode at interstate speeds which is extremely dangerous.

Filed Jul 10, 2023 · Engine · 118,000 miles · ID

The contact owns a 2016 Hyundai Tucson. The contact stated that the vehicle was serviced under warranty and the Knock Sensor Detection System (KSDS) was replaced; however, after the repair, while driving 62 MPH, the check engine warning light illuminated, and the vehicle went into LIMP Mode. The contact stated that he drove the vehicle back to the dealer and was informed by the mechanic that there would be a cost for the repair. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 118,000.