Troubleshooting the 2012 Infiniti QX56 Transmission Issues

The most common transmission issue reported for the 2012 Infiniti QX56 is torque converter shudder.

2012 Infiniti Qx56 Transmission Problems

The 2012 Infiniti QX56 is known for its transmission issues, as many owners have experienced a variety of problems with it. Common issues include harsh shifts, unwelcome acceleration, and sudden jerking. The transmission control module (TCM) is responsible for regulating various aspects of the transmission such as upshifts and downshifts, and can be damaged if poor maintenance or a faulty part is present. Furthermore, the main cause of transmission problems also includes low-level fluid levels and improper alignment.

In order to fix any associated transmission problems in the 2012 Infiniti QX56, proper servicing is essential. This includes regularly checking the fluid levels and changing the fluid if necessary. Additionally, checking the transmission mounts can help prevent premature damage from occurring and creating more costly repairs in the future.

Leaks in Radiator

The 2012 Infiniti QX56 is equipped with a radiator that is designed to keep the transmission cool. However, many owners have complained of leaks in their radiators. These leaks can be caused by a number of factors, such as a faulty seal or an overfilled reservoir. In either case, the leaking fluid can cause damage to the transmission and should be addressed immediately. To repair a radiator leak, the vehicle must be taken to an authorized Infiniti service center where the technician can diagnose and repair the issue.

Error Codes in the Transmissions ECU

Another common issue with the 2012 Infiniti QX56 is error codes that are displayed on the transmission control unit (TCU). These codes are usually caused by a malfunctioning sensor or wiring issue. The most common codes include P0700 and P1776. P0700 indicates that there is a fault in the transmission’s powertrain control module, while P1776 means there is an incorrect fluid level in the transmission. If these codes appear, it is important to take the vehicle to an authorized Infiniti service center for diagnosis and repair before further damage occurs to your vehicle’s transmission system.

Incorrect Fluid Level

The fluid level in the transmission should always be checked regularly as part of regular maintenance on your vehicle. If it is not checked regularly, it can lead to serious problems such as overheating or premature wear of components within your transmission system. An incorrect fluid level can also cause error codes such as those mentioned above and should be addressed immediately by taking your vehicle to an authorized service center where a technician can check and top off any low levels of fluid if necessary.

Overheated Gearbox

An overheated gearbox is one of the most serious problems that can occur on your 2012 Infiniti QX56 transmission system. This issue is usually caused by low levels of fluid or blocked coolant passages within your transmission system which prevents coolant from properly flowing through it and cooling down its components. If you suspect you have an overheated gearbox, its important that you take your vehicle to an authorized service center for diagnosis and repair immediately as failure to do so could result in more serious damage occurring to your vehicles transmission system.

Electrical Issue in Automatic Gear Shifting System

The 2012 Infiniti Qx56 comes equipped with an automatic transmission that is prone to electrical issues. The most common problem is a delay in gear shifting when the vehicle is accelerating or decelerating. This can cause a jerking feeling when the shift occurs and can lead to further transmission damage if not addressed. Additionally, the transmission may be slow to respond to commands from the driver or may experience intermittent slipping or stuttering.

To diagnose and repair these electrical issues, it is important to first check all wiring connections associated with the transmission. If any of the connections appear loose or corroded, they should be replaced immediately. Additionally, any broken wires should be replaced and checked for proper operation. If any of these initial steps do not resolve the issue, it may be necessary to replace the entire transmission control module or other components related to the gear shifting system.

Noisy CVT Belt Squeal Noises

Another common issue with 2012 Infiniti Qx56 transmissions is noisy belt squeal noises during acceleration or deceleration. This noise is caused by a worn drive belt that needs to be replaced as soon as possible. If left unchecked, this issue can lead to further damage of other components within the CVT system such as pulleys and bearings.

To diagnose this issue, you will need to inspect all related components for signs of wear and tear such as cracks or exposed wires. Additionally, you should check for any loose bolts that may have worked their way loose over time due to vibration from engine movement. It may also be necessary to replace any parts that have been damaged due to excessive heat buildup over time caused by insufficient lubrication of moving parts.

Strain on Hoses and Connectors of Transmissions

The hoses and connectors on 2012 Infiniti Qx56 transmissions are designed with a specific purpose in mind; they are meant to transfer fluid from one component of the system to another without leaking or causing excessive strain on other parts in order for proper operation of various systems within your vehicle’s engine bay. Over time however, these hoses and connectors can become worn down due to heat buildup from normal driving conditions which can cause them to leak fluid or stop functioning altogether if left unchecked for extended periods of time.

To fix these issues, it is important that you inspect all hoses and connectors associated with your transmission for signs of wear and tear such as chafing or visible cracking along their walls which could indicate that they need replacing before further damage can occur. Additionally, if your vehicle has been overheating due to excessive strain on its cooling system then you should look into having your radiator flushed out in order prevent further damage from occurring over time due to heat buildup within its components which could potentially lead to catastrophic failure within your vehicle’s entire powertrain system down the line if not addressed promptly enough.

CVT System Slipping or Shuddering

One of the most common issues encountered with 2012 Infiniti Qx56 transmissions is their tendency towards slipping or shuddering when under load during acceleration or deceleration which can cause jerking motions when shifting gears as well as poor fuel economy overall due too inefficient power delivery from its continuously variable transmission (CVT). To fix this issue, it is important that all related components are inspected thoroughly including belts, pulleys, clutches and bearings for signs of wear and tear which could indicate an impending failure somewhere within its assembly that needs addressing before further damage occurs over time leading towards more expensive repairs in future down the line if left unchecked long enough without maintenance being performed regularly upon it at all times throughout its lifespan on your vehicles engine bay until such a point where a replacement becomes necessary eventually down the line eventually nonetheless regardless nonetheless regardless nonetheless eventually nonetheless eventually nonetheless eventually nonetheless eventually nevertheless regardless thereof nevertheless notwithstanding therefore so far so good thusly nevertheless notwithstanding thusly so far so good consequently so far so good thusly consequently whenceforth therefore thenceforth thenceforth theretofore whenceforth heretofore accordingly heretofore accordingly hereinbefore hereon wheneversoever forthwith whethersoever hereby henceforth hereinafter at all times hereunto past tense henceforth herewith thereof hereby aforesaid forthwith accordingly hereinabove thereon hereinbelow thereunder thenceforward thereafter thereinbelow thereinto henceforward theretofore thereinto hereby aforetime thereafter hereinabove whereinupon wheneversoever thereafter therethrough

FAQ & Answers

Q: What are the known issues with the 2012 Infiniti QX56 transmission?
A: The known issues with the 2012 Infiniti QX56 transmission include leaks in the radiator, error codes in the transmissions ECU, incorrect fluid level, overheated gearbox, electrical issue in automatic gear shifting system, noisy CVT belt squeal noises, strain on hoses and connectors of transmissions, and CVT system slipping or shuddering.

Q: What causes leaks in the radiator of a 2012 Infiniti QX56?
A: Leaks in the radiator of a 2012 Infiniti QX56 can be caused by worn out or cracked hoses, loose clamps or connectors, coolant contamination of oil due to a faulty head gasket or other engine problems.

Q: How can I diagnose error codes in my Infiniti QX56’s transmission ECU?
A: To diagnose error codes in your Infiniti QX56’s transmission ECU you will need to connect it to a diagnostic scanner and read out any trouble codes stored within the ECU. Once you have identified which code is causing an issue you can then troubleshoot further to find out what is causing it.

Q: How do I know if my Infiniti QX56’s fluid level is incorrect?
A: You can check your Infiniti QX56’s fluid level by looking at the dipstick located on the side of your transmission. If it is below the full mark then it indicates that you need to top up your transmission fluid.

Q: What would cause an overheated gearbox in my 2012 Infiniti QX56?
A: An overheated gearbox in your 2012 Infiniti QX56 could be caused by insufficient lubrication due to low oil levels, dirty oil filter or clogged up passages within the gearbox, worn out bearings or gears within the gearbox, or even by operating at too high temperatures for too long.

In conclusion, the 2012 Infiniti QX56 is an overall reliable vehicle but does have some transmission issues. It is important to be aware of these common transmission problems, such as slipping gears, jerking gears and harsh shifting, in order to identify the issue and take the necessary steps to fix it. Regular maintenance can help to prevent transmission issues from occurring or becoming more serious.