JF4 Factory-verified

GMC · Regular Production Option

Pedals, adjustable, power

Years 2003–09, 2014–19 Models 10 Factory citations 30

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Also described as Brakes, vacuum power, 17 in disc/drum with ABS, 6,400 lbPedals, power-adjustablePower adjustable pedals

Also documented for Buick Cadillac Chevrolet Oldsmobile Pontiac Saturn

Documented applications

Envoy — GMT360 (2002–2009)

2004, 2006–2009 Factory-verified

GM factory document — 2004 gmc envoy 2wd rpo code list, p.1.
GM factory document — 2006 gmc envoy 2wd rpo code list, p.1.
GM factory document — 2009 gmc envoy 4wd rpo code list, p.1.

Sierra — GMT800 (1999–2007)

2006–2007 Factory-verified

GM factory document — 2006 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2007 gmc sierra classic 2wd rpo code list, p.1.

Sierra — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.

Sierra HD — GMT900 (2007–2014)

2009, 2014 Factory-verified

GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.
GM factory document — 2014 gmc sierra 2500hd fleet order guide wayback, p.2.
GM factory document — 2014 gmc sierra 3500hd fleet order guide wayback, p.2.

Sierra HD — K2XX (2015–2019)

2015, 2018–2019 Factory-verified

2018: GM's 2018 Sierra 2500HD order guide

GM factory document — 2015 gmc sierra 2500hd fleet order guide wayback, p.2.
GM factory document — 2019 gmc sierra 2500hd fleet order guide wayback, p.1.
GM factory document — 2018 gmc sierra 2500hd order guide copy gm authority, p.5.

Sierra — K2XX (2014–2019)

2014, 2016–2018 Factory-verified

GM factory document — 2014 gmc sierra 1500 fleet order guide wayback, p.2.
GM factory document — 2016 gmc sierra 1500 fleet order guide wayback, p.2.
GM factory document — 2017 chevrolet sierra silverado electrical body builders manual service manual 2017 en us, p.22.
GM factory document — 2018 gmc sierra 1500 order guide copy gm authority, p.89.

Yukon — GMT800 (2000–2006)

2003–2006 Factory-verified

GM factory document — 2003 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2004 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2005 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2006 gmc yukon 2wd rpo code list, p.1.

Yukon — GMT900 (2007–2014)

2007–2009 Factory-verified

GM factory document — 2007 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2009 gmc yukon 2wd rpo code list, p.1.
2014 Single-source

GM Authority words it as power-adjustable pedals, now standard on SLE models per GM Authority's 2014 Yukon page (RPO Central; its Yukon, Yukon XL and Commercial Fleet lists); no factory list or order guide read for 2014; the page does not credit GM for its codes

Yukon — K2XX (2015–2020)

2015–2018 Factory-verified

SLE: part of PCI (2018 also PDU); SLT, Denali: S; 2018 from GM's 2018 Yukon order guide

GM factory document — 2015 gmc yukon denali fleet order guide wayback, p.2.
GM factory document — 2016 gmc yukon denali fleet order guide wayback, p.2.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.22.
GM factory document — 2018 gmc yukon order guide copy gm authority, p.25.

Yukon XL — K2XX (2015–2020)

2015–2017 Factory-verified

SLE: A, only with PCI

GM factory document — 2015 gmc yukon xl denali fleet order guide wayback, p.2.
GM factory document — 2016 gmc yukon xl denali fleet order guide wayback, p.2.
GM factory document — 2016 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2016 en us, p.9.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.22.

This page aggregates every documented appearance of JF4 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.