···
Log in / Register

Does the Transmission Limitation Function Need Repair?

4 Answers
VanMatthew
09/09/25 3:17am

Transmission limitation function requires maintenance. When a fault has already occurred in the transmission, certain operations will be restricted if you continue driving. Automotive transmissions are divided into two types: manual and automatic: Manual transmissions mainly consist of gears and shafts, achieving speed and torque variation through different gear combinations; automatic transmissions (AT) are composed of a torque converter, planetary gears, a hydraulic torque variation system, and a hydraulic control system. Main functions of the transmission: Changing the transmission ratio to expand the range of torque and speed variation of the drive wheels, adapting to frequently changing driving conditions, while allowing the engine to operate under favorable conditions (higher power and lower fuel consumption); enabling the vehicle to reverse while maintaining the same engine rotation direction; using neutral gear to interrupt power transmission, allowing the engine to start, shift gears, and facilitating gear changes or power output; the transmission consists of a gear transmission mechanism and a control mechanism, and a power take-off can be added when necessary.

Was this review help?
14
5
Share
LucyFitz
09/20/25 8:05am

Last week my car also displayed this transmission limitation warning, and I immediately had a mechanic check it out, only to realize it wasn't a minor issue. This warning indicates the transmission has detected an abnormality and entered protection mode, most commonly due to valve body sticking causing unstable oil pressure, or abnormal clutch plate wear. Once while cruising on the highway, the gear was suddenly limited - RPMs soared but the speed wouldn't increase, which was very dangerous. I strongly recommend immediate inspection. The mechanic used a diagnostic tool to read the fault code and found the solenoid valve resistance was too high. It cost 800 to replace the valve body and fix the issue. Never delay repairs, or you might end up needing a whole new transmission costing 20,000-30,000. Regular transmission fluid changes can help prevent such problems.

Was this review help?
3
4
Share
Expand All
McCatherine
11/03/25 8:29am

As a seasoned driver with ten years of experience, you must take the transmission restriction warning light seriously. This function activation indicates that the transmission is sacrificing performance to protect itself. Common causes include excessive oil temperature, sensor failure, or computer program errors. When my off-road vehicle encountered this issue last time, the gear shifts became particularly jerky. The repair shop found that overheating protection was triggered due to clogged cooling lines, and normal operation resumed after cleaning. Ignoring such warnings may lead to steel belt slippage or gear damage, with repair costs potentially amounting to half the price of a used car. It is recommended to promptly use professional equipment to diagnose the fault codes.

Was this review help?
3
1
Share
Expand All
LaEmma
12/17/25 8:29am

Transmission Limp Mode Activated - Immediate Repair Required. This is the system's self-protection mechanism triggered upon detecting abnormal RPM, slippage, or other issues. Potential causes include contaminated fluid, valve body wear, or electrical faults. My relative's vehicle couldn't engage 6th gear due to this - diagnostics revealed aged speed sensor wiring harness. Delaying repairs will exacerbate damage, potentially leading to complete transmission failure. Using OEM-specified transmission fluid during maintenance is crucial.

Was this review help?
20
0
Share
Expand All
More Forum Discussions

How to Reactivate ETC After Detachment?

Methods to reactivate ETC after detachment: 1. Insert and remove the ETC card twice consecutively until the electronic tag screen displays 'Bluetooth On' or directly press the button on the top of the electronic tag to activate Bluetooth; 2. Turn on Bluetooth on your phone, open the app mini-program, download the corresponding mobile app based on the electronic tag's brand, and enter the device activation interface; 3. Click 'Device Connection', select the device model to be connected, and patiently wait for the successful connection prompt; 4. After successful connection, follow the prompts to verify and upload a photo of the vehicle's front face to complete activation. Wait for 3 to 5 days for review, and it can be used normally after approval.
19
1
Share

Is the Tire Ruined After Driving a Distance Without Air?

Not necessarily. However, it is not recommended to continue driving with low tire pressure. The specific consequences are as follows: Consequences: Driving with insufficient air pressure can cause excessive flexing of the tire body, which generates high heat. The inner liner rubber may burn into black spots, leading to separation between the rubber and the tire cord fabric. In more severe cases, the inner liner rubber may melt due to high heat, causing structural damage to the tire. Safety Hazards: Continuing to drive with weakened tire strength may eventually lead to tire failure or even a blowout, posing significant safety risks.
8
3
Share

What is the appropriate tire inflation pressure for sedans?

Tire inflation pressure is generally maintained at 2.2-2.5 bar, which is considered appropriate. In summer, it should be slightly lower. Effects of abnormal tire pressure: Excessive tire pressure reduces the friction and adhesion of the tires, increases the risk of tire blowouts, and affects driving safety. Insufficient tire pressure not only causes steering difficulties and vehicle deviation, which are detrimental to driving safety, but also damages the tires. Seasonal factors affecting tire pressure: In winter, it is advisable to increase the standard tire pressure by approximately 0.2 bar. In summer, follow the lower limit of the standard tire pressure. For vehicles parked outdoors in summer, the pressure can generally be about 0.1 bar lower than the standard to prevent high-temperature blowouts.
2
5
Share

What is the rod connecting the wheels called?

The rod connecting the wheels is called the car suspension. Definition of car suspension: The suspension system refers to all the force-transmitting connection devices between the car frame and the axle or wheels. Its function is to transmit forces and torques between the wheels and the frame, buffer the impact from uneven roads to the frame or body, and dampen the resulting vibrations to ensure smooth driving. Non-independent suspension system: The structural feature of a non-independent suspension system is that the wheels on both sides are connected by an integral axle, and the wheels together with the axle are suspended under the frame or body through an elastic suspension system.
20
0
Share

Will an Electric Car Stall When Wading Through Water?

It can stall. Generally, deep water wading primarily tests the sealing of car doors and the passenger compartment. Additionally, electric vehicles have specified wading depths, and exceeding them is not recommended. Below are the reasons: Poor Sealing Solutions: The sealing of the power output shaft. If the water level exceeds the power output shaft, water can quickly enter the transmission and then the motor. Short Circuit: Power sources, cables, and inverters. If the water level is too high, these components are prone to short circuits because water can enter through any gaps. Poor Contact: The electrical control system and sensor lights in cars typically use traditional connectors. After being submerged in water, they may experience poor contact and short circuit issues.
2
4
Share

What are the reasons why a car won't start in cold weather?

The reasons why a car won't start in cold weather are: 1. The car battery is dead; 2. Low temperature causes the viscosity and rotation speed of the engine oil to decrease; 3. There is a problem with the ignition system; 4. Insufficient fuel in the car; 5. Excessive carbon deposits inside the vehicle's engine; 6. The fuel pump is damaged, preventing fuel in the fuel tank from being supplied for combustion. The solutions for a car that won't start are: 1. Check if the battery is dead; 2. Check if the fuel pump is damaged; 3. Check if there is sufficient fuel; 4. Check if the engine sensors are damaged; 5. Check if there is a problem with the ignition system; 6. Use a heating rod to warm up the engine oil.
13
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.