Question about 2001 Chevrolet Silverado

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2001 Silverado tow/haul button

Tow/haul button comes on , engaging the gearing into that mode. Will not come off until engine turned off. Is it a switch prob or sensor.

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  • Chevrolet Master
  • 426 Answers

Most likely switch

Posted on Jun 21, 2009

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I have a 2009 GMC Acadia. What should the ERS mode be in on a normal basis?


Driver Shift Control (DSC) or Electronic Range Selection (ERS): This position (M-Manual / L-Low) allows the driver to utilize the DSC/ERS system. When the shift selector lever is moved to this position, the driver may select upshifts or downshifts by using the paddle switches located on the steering wheel/shifter. An upshift is requested by pushing either + button. Refer to the vehicle owner's manual for more specific DSC/ERS information.
Driver Shift Control (DSC)/Electronic Range Selection (ERS)
Refer to the owner's manual for specific instructions on DSC. The TCM will override shift commands when maximum engine speed is achieved and will protect from any downshift which may cause excessive engine RPMs.

Electronic Range Select (ERS) Mode
ERS mode allows you to choose the top-gear limit of the transmission and the vehicle's speed while driving down hill or towing a trailer. The vehicle has an electronic shift position indicator within the instrument panel cluster. When using the ERS Mode a number will display next to the L, indicating the current gear that has been selected.
To use this feature:
Move the shift lever to L (Low).
Press the plus/minus button located on the shift lever, to increase or decrease the gear range available.
When you shift from D (Drive) to L (Low), the transmission will shift to a pre-determined lower gear range. The highest gear available for this pre-determined range is displayed next to the L in the DIC. See Driver Information Center (DIC) and DIC Operation and Displays for more information. The number displayed in the DIC is the highest gear that the transmission will be allowed to operate in. This means that all gears below that number are available. For example, when 4 (Fourth) is shown next to the L, 1 (First) through 4 (Fourth) gears are automatically shifted by the vehicle. the transmission will not shift into 5 (Fifth) until the + (Plus) button is used or you shift back into D (Drive).
While in L (Low), the transmission will prevent shifting to a lower gear range if the engine speed is too high. You have a brief period of time to slow the vehicle. If vehicle speed is not reduced within the time allowed, the lower gear range shift will not be completed. You must further slow the vehicle, then press the - (Minus) button to the desired lower gear range.
Automatic Engine Grade braking is not available when the ERS is active. It is available in D (Drive) for both normal and Tow/Haul mode. While using the ERS, cruise control and the tow/haul mode can be used. See Tow/Haul Mode for more information.
© 2017 General Motors Corporation. All rights reserved

Oct 09, 2017 | 2009 GMC Acadia

1 Answer

There is an icon showing in the speedometer area it looks like a trailer and the car is driving weird like it's in a low gear


That icon looks like the vehicle has been put into tow mode.
When towing or hauling a heavy load, you can activate this feature with a button on the steering wheel, stalks or dash. Activating this mode tells the on board computer to modify the shifting pattern that is better for towing a hauling a heavy load often restricting the gearbox to the lower gear ratios.
  1. The Tow/Haul Light will come on when the system is on.
  2. If the light flashed steadily, have the system serviced.
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Sep 22, 2017 | Cars & Trucks

1 Answer

What would cause my TAHOE TOW/HAUL mode to engage on its own?


You need to have a diagnostic scan tool hooked up ,glitch in one of the control modules or a wire in the circuit shorting to ground ! probably something simple but hard to find ! With a factory scan tool they can check the input signal to the BCM ,PCM .
Tow/Haul mode enables the operator to achieve enhanced shift performance when towing or hauling a load. When tow/haul mode is selected, the tow/haul switch input signal to the body control module (BCM) is momentarily toggled to zero volts. This signals the powertrain control module (PCM) or transmission control module (TCM) to extend the length of time between upshifts and increase transmission line pressure. Cycling the tow/haul switch again, or cycling the ignition switch disables tow/haul mode and returns the transmission to a normal shift pattern.

Sep 23, 2015 | Cars & Trucks

1 Answer

Tow haul mode on a silverado chevy 2007


should be a button on the shifter or dash just push it

Feb 28, 2014 | Dodge Cars & Trucks

1 Answer

Electrical issue


Does the vehicle start an run ? If it does ,the brain as you call it is working fine . The check engine light has nothing to do with the PCM /ECM sensing problems .You probably should take your vehicle to a qualified repair shop .

May 19, 2017 | 2000 Chevrolet Silverado 1500

1 Answer

Tow haul mode


ckeck all fusses &relays

Aug 16, 2013 | Cars & Trucks

1 Answer

I have a 2002 chevy silverado and the tow/haul light comes on and engages on its own. is there a simple fix?


switch is bad, they get dirt and grim in them and will stick. try unpuging it. pull switch out and unpug it, if it still happens with it unplugged, see dealer

Jan 26, 2013 | 2002 Chevrolet Silverado

1 Answer

Tow haul on 2001 chevy silverado does not work


If the unit is getting the signal frim the pedal depression, it has to work. check that it's getting the signal when you depress the pedal. Check those connections, if all that is fine, the unit itself is faulty.

Mar 03, 2018 | 2001 Chevrolet Silverado 1500

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