Gmc 2003 Sierra User Manual download pdf (Page 116)

Tovv/Haul Mode (AutOTtïatic

Transmission)

Overdrive Disable (Allison

Transmissions)

Your veh^le rr>ay quipped wrth a taw/haul mode.

The seleclor button Is focated on ihe end of (he column

shift lever. You cart use this tealure lo assist when

lowing or hauling a heavy load. Turn low/haut an and

ofi by pressing the button until (he tow/haul indicator

light illuminates on the instrument panel. See "Tow/Haul

Mode"" under Tdivjnp a Traitet on page 4-6S for mare

information.

It yoifr vehicfe has an Aifison Transmissron you may

have the overdrive disabte Feature. The overdrive disable

feature prevents the transmission From shifting inlo

fifth (5) ^ar. The selfittor button Is located on Ihe end

of the column shitt lever. You can turn overdrive

disable on and off by pressing and holding the button at

the end of the column ahrFl lever until the Jmiicalor

light» on the Inslrurhant panel» illuminates.

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Gmc 2003 Sierra User Manual Page 116