How and when your transmission swaps gears are controlled by the primary engine computer. Most current automobiles and trucks use computer-controlled shifts to maximize fuel efficiency and performance. The transmission problem in an older vehicle may not have been noticed until you were stuck. According to a 2012 study, most new vehicles now come equipped with a warning light that alerts the driver of transmission issues before they become costly.

If your automobile or truck doesn't have a check transmission warning light, it may alert you to imminent transmission problems with an existing warning light, such as an overdrive warning light or a service light. For further information on how your vehicle's primary engine computer alerts you to a gearbox problem, consult your owner's manual. It's possible that some lights will remain on or flash on and off until the issue is resolved.

When it comes to transmission warning lights, they can do double duty. Your car's transmission warning light may alert you to a transmission problem, but it could also act as a maintenance reminder that it's time to check or replace transmission fluid or bring your vehicle in for regular maintenance. Your vehicle's warning light may illuminate after 100,000 miles if you don't believe there's an issue with the gearbox, but it might also be a reminder to undertake routine maintenance. To be sure, consult your owner's manual or contact your local dealer.

As soon as your transmission warning light comes on, you should, if possible, check the transmission fluid. Others contain a dipstick — similar to the one used to check engine oil level — so you can check the fluid level when needed. The owner's manual will tell you if your vehicle needs to be warmed up and running before you can check the fluid levels. Do not add any fluid other than what the manufacturer specifies.

For example, you might be able to find the problem faster if you know the circumstances under which the transmission warning light illuminates If the light comes on or flashes before the vehicle has warmed up to operating temperature, it could indicate a transmission temperature sender problem. There is a possibility that the transmission wiring connection is loose, or the wire is bare when the light flickers or comes on just when the vehicle hits bump in the road However, there are other faults that can be detected without a transmission warning light.

A transmission replacement is a costly repair that most individuals would prefer to avoid if at all feasible. It's possible to fix an automatic gearbox by detecting the indicators of failure and avoiding an expensive replacement by recognizing the signs of failure.

Preventing transmission problems is less expensive than repairing, rebuilding, or replacing the transmission. Maintaining your vehicle is essential. How often should your transmission fluid be changed? Check your owner's handbook. A crimson liquid is required. You need to replace it if it's brown or smells bad. Never put a moving vehicle into neutral. Your transmission's moving parts can be damaged as a result. When you tow a large load, your transmission can overheat and fail. It is less expensive to remedy little transmission faults if they are identified early in the process.

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