Dl8 To Dl3 Mirrors On New 07 Chevy...

Trav_13 · January 6, 2009

While I know this topic has been beat to death on adding the DL3 Mirrors to a truck with the DL8's on this board....I know alot of the discussion has been based around Crew and Extended Cabs, since that is what most of us have....

My question is...and maybe I overlooked when searching.....can you add these Power Folding Signal Mirrors to Regular Cab Trucks?....I know that GM doesn' t make a switch for the Regular Cab to Support the Folding Mirrors, but I am wondering if the Signal Mirrors will work since the Switch is different on the Regular Cabs since they only have 2 Windows vs. the 4 Window Switch....I am hoping so since I have seen Regular Cab 3/4 Ton LT Trucks with the Camper/Signal Mirrors.....I would be adding these Mirrors to a Half-Ton Truck with the LT Package.

tobias · January 6, 2009

I have to believe that the signals will work just fine. The connections are the same.

Trav_13 · January 6, 2009

I have to believe that the signals will work just fine. The connections are the same.

Thanks for chipping in Tobias....I'm hoping that will be the result

tobias · January 6, 2009

I have to believe that the signals will work just fine. The connections are the same.

Thanks for chipping in Tobias....I'm hoping that will be the result

NP.

I had the DL8's, swapped to the DL3's and then sold my DL8's to Jim (Zembones). He installed them on his RC/SB WT and they work fine. I realize you want to put the DL3's on a RC/SB but I thought that might help make it clear that the plugs, etc, are all the same.

asilverblazer · January 6, 2009

I agree, you might be able to save some coin by buying the signal glass and harness (with the signal wires) instead of a whole (used?) mirror.

tobias · January 6, 2009

I agree, you might be able to save some coin by buying the signal glass and harness (with the signal wires) instead of a whole (used?) mirror.

I picked my mirrors up (with matching painted caps) for only $200. The heated signal kit from Muth is $269. Not to mention, it's a ton easier to install an entire mirror than to have to disassemble a set and run your own wires. I'd hit eBay and Craig's list.

Porter_ · January 6, 2009

slight threadjack, but relevant nonetheless:

i have an '08 Sierra Crew Cab SL. i have power heated mirrors, but want to upgrade to power heated mirrors with turn signals. are the DL3's and DPN's the only mirrors with turn signals? in other words, does GM produce a DL8 mirror with turn signals? i don't care about the power folding option of the DL3's, and i'm not interested in the DPN camper mirrors.

also if i'm correctly reading the GM service document below, it seems i need the dealership to confirm whether or not my truck has door modules. if i don't have door modules the swap is not possible? is this correct? thanks in advance for anyone willing to shed some light on this.

Service Information 2007 GMC Truck Sierra - 4WD | Sierra, Silverado (VIN C/K) Service Manual | Document ID: 2008538
--------------------------------------------------------------------------------

#PIT4417B: Swapping Outside Rearview Mirrors RPOs DL8 / DL3 / DPN - keywords rear power folding camper change door body out side - (Aug 31, 2007)

Subject: Swapping Outside Rearview Mirrors RPO's DL8/DL3/DPN

Models:

2007-2008 Chevrolet Silverado

2007-2008 GMC Sierra

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

Some owners may request to have a different style mirror installed on their vehicle or request a different mirror before they purchase the vehicle. The new electrical architecture for the Silverado and Sierra has made swapping of the mirrors a more involved procedure than with previous models.

Recommendation/Instructions:

When swapping mirrors on a vehicle, the first thing that needs to be known is if the vehicle is equipped with door modules or not. The easiest way to determine if the vehicle has door modules is to use the Tech 2 and try to communicate with the "Drivers Door Switch" and "Passenger Door Switch". If the Tech 2 can communicate with these modules then the vehicle is equipped with door modules. If the Tech 2 cannot communicate with the door switches then the vehicle does not have door modules and the wiring between the driver and passenger mirrors is hard wired. The information below will be divided into two different areas:

1. Swapping mirrors on a vehicle equipped with Door Modules, and..

2. Swapping mirrors on a vehicle NOT equipped with Door Modules.

Swapping mirrors on a vehicle equipped with Door Modules,

The information in this section covers three different mirrors to swap on vehicles equipped with door modules: Base Power (DL8), Power Folding (DL3) and Camper (DPN). Before any parts are installed new door module calibrations must be obtained from Techline Customer Support. Advise the Techline Consultant that the vehicle is getting different mirrors, provide the RPO of the mirrors being installed, and request a new calibration for both door modules. Also, if switching from DL3 to DPN/DL8 or vise versa new drivers door switch trim bezel will need to be obtained. Once you have the calibrations and correct bezel, then the mirror swap can be done. If the calibration or switch bezel is not available the mirror swap is not possible. Replace the drivers door switch with correct part number for the mirrors being installed from the chart below, programmed both door switches with the new calibrations from Techline and install the new mirrors.

Mirrors Driver Door Switch

DL3 15906881 4-power windows

DPN or DL8 15906880 4-power windows

One additional note to remember when swapping from DL3 to DPN or DL8. If the vehicle is equipped with memory RPO AN3, only the DL3 mirrors have memory recall. So, if the DL3 mirrors are replaced with DPN or DL8 mirrors the curb view assist and memory mirror features will be lost.

Swapping mirrors on a vehicle NOT equipped with Door Modules,

This information only covers two different mirrors to swap on vehicles NOT equipped with door modules: Base Power Mirror (DL8) and Camper (DPN).

These two mirrors can be swapped without any additional hardware changes. The only thing to be aware of is that some vehicles equipped with DL8 mirrors may not have the turn signal wiring, due to the DL8 mirror is not equipped with a turn signal indicator. If the DPN mirrors are installed the turn signal indicator may be inoperative unless the turn signal wiring is installed. Please do not contact Partech for a wiring harness, the wires will have to be added.

Note: The Power Folding Mirrors (DL3) are not available and can not be installed on a vehicle not equipped with Door Modules.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

© 2008 General Motors Corporation. All rights reserved.

tobias · January 6, 2009

slight threadjack, but relevant nonetheless:

i have an '08 Sierra Crew Cab SL. i have power heated mirrors, but want to upgrade to power heated mirrors with turn signals. are the DL3's and DPN's the only mirrors with turn signals? in other words, does GM produce a DL8 mirror with turn signals? i don't care about the power folding option of the DL3's, and i'm not interested in the DPN camper mirrors.

also if i'm correctly reading the GM service document below, it seems i need the dealership to confirm whether or not my truck has door modules. if i don't have door modules the swap is not possible? is this correct? thanks in advance for anyone willing to shed some light on this.

You do not have door modules but you will be able to add the DL3's and gain the signal feature but that's it.

Porter_ · January 6, 2009

slight threadjack, but relevant nonetheless:

i have an '08 Sierra Crew Cab SL. i have power heated mirrors, but want to upgrade to power heated mirrors with turn signals. are the DL3's and DPN's the only mirrors with turn signals? in other words, does GM produce a DL8 mirror with turn signals? i don't care about the power folding option of the DL3's, and i'm not interested in the DPN camper mirrors.

also if i'm correctly reading the GM service document below, it seems i need the dealership to confirm whether or not my truck has door modules. if i don't have door modules the swap is not possible? is this correct? thanks in advance for anyone willing to shed some light on this.

You do not have door modules but you will be able to add the DL3's and gain the signal feature but that's it.

thanks for the reply. just to be clear, if i swap to the DL3's i'll have manual folding, power adjust, heated, w/ turn signal mirrors? no need to splice wires or anything, just plug and play?

Dmas · January 6, 2009

slight threadjack, but relevant nonetheless:

i have an '08 Sierra Crew Cab SL. i have power heated mirrors, but want to upgrade to power heated mirrors with turn signals. are the DL3's and DPN's the only mirrors with turn signals? in other words, does GM produce a DL8 mirror with turn signals? i don't care about the power folding option of the DL3's, and i'm not interested in the DPN camper mirrors.

also if i'm correctly reading the GM service document below, it seems i need the dealership to confirm whether or not my truck has door modules. if i don't have door modules the swap is not possible? is this correct? thanks in advance for anyone willing to shed some light on this.

You do not have door modules but you will be able to add the DL3's and gain the signal feature but that's it.

thanks for the reply. just to be clear, if i swap to the DL3's i'll have manual folding, power adjust, heated, w/ turn signal mirrors? no need to splice wires or anything, just plug and play?

yes, that's correct, just plug and play, only thing is that you are gonna have an extra connector that's not gonna be used, the one for the folding option, you can just tape it to the door.

Porter_ · January 6, 2009

yes, that's correct, just plug and play, only thing is that you are gonna have an extra connector that's not gonna be used, the one for the folding option, you can just tape it to the door.

thanks for the info guys

Trav_13 · January 7, 2009

Hey Guys,

Everything works great on the Regular Cab also....

I now have a set of DL8 Mirrors for sale which are like Brand New! I'll put them in the F/S Board within the next few days.

Thanks

Travis

Porter_ · January 7, 2009

Hey Guys,

Everything works great on the Regular Cab also....

I now have a set of DL8 Mirrors for sale which are like Brand New! I'll put them in the F/S Board within the next few days.

Thanks

Travis

any tips on where to pick up some DL3's on the cheap? i've scoured ebay but haven't found any yet with a buy it now option. the listings i've seen end via highest bidder have all been jacked up pretty high due to bidding wars. the mirrors are ~$250 each on gmpartsdirect.

tobias · January 7, 2009

Hey Guys,

Everything works great on the Regular Cab also....

I now have a set of DL8 Mirrors for sale which are like Brand New! I'll put them in the F/S Board within the next few days.

Thanks

Travis

Who's truck are you working on, Travis?

Trav_13 · January 7, 2009

Hey Guys,

Everything works great on the Regular Cab also....

I now have a set of DL8 Mirrors for sale which are like Brand New! I'll put them in the F/S Board within the next few days.

Thanks

Travis

Who's truck are you working on, Travis?

Just working on the neighbors truck....we each got the trucks about the same time only he couldn't get the DL3 Mirrors being it was a Regular Cab and he has been wanting to install them ever since he saw them on my truck.