truck pulling a trailer

At Harold's Used Auto Parts Inc in Philadelphia, we know an important part of your ability to care for your transmission lies in your knowledge about how it works. Here is some information on the tow button, if your car, truck, or SUV is equipped with one.

You know to hit the tow button whenever you have a trailer connected. But what exactly does it do? On modern vehicles, it might adjust a lot of parameters, influencing fuel consumption, AWD systems, and traction control. Most importantly, the tow button simply increases the shift points on your transmission.

When this mode is active, your transmission will delay shifting until the RPMs reach a higher than normal rev count, to compensate for the extra weight behind your vehicle. This decreases wear and tear, increases efficiency, and ensures you have enough power at your disposal to pull a load with ease.

For any and all of your transmission repair and maintenance needs, our expert mechanics have you covered. For quality parts, excellent customer service, and the best transmission service shop in Philadelphia, call or stop by Harold's Used Auto Parts Inc today.



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5347 Whitby Ave
        Philadelphia, PA

(215) 472-1552
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MON-FRI | 8:30 AM - 5:30 PM
SAT | 8:30 AM - 2:00 PM
SUN | CLOSED
Closed every third Saturday of the month