Can I install a third row in a Chevy TB 2004 that does not currently have a third row?

Before guessing as too what the problem is , viewing wiring diagrams , an reading factory service info. on what makes it work an then testing electrical circuits would be the proper way of finding the problem . After looking at a wiring diagram i see a relay for each third row folding seats . One for the right an one for the left one . It's probably just a bad relay . Located in the Auxiliary relay box # 2 . Have to look in service info for the location of that box . Will get back to you after dinner .

copied this from ford forum , quite a lot of work, do your seats fold down into the floo ? if so follow this guidance
Removal and Installation

CAUTION: To prevent possible damage to the third row seat or the safety belts, make sure that the safety belts are not fastened when moving the seat to the load floor position.

CAUTION: Make sure that no objects such as books, purses or briefcases on the floor in front of the third row seats or on the seat cushion before lowering the backrest(s).

NOTE: The third row seat backrests need to be in the raised position for removal of the third row seats.

All seats


Remove the load floor panel.
Remove the jack assembly.
Remove the load floor panel latch striker bolts and the latch striker.
Remove the 3 pin-type retainers and the jack storage compartment liner.
Remove the 2 bolts in mid-floor panel support, lift on the front of mid-floor panel support to release the 3 retainer clips and remove the panel support.

you will need two people for this. While one person sits in back of the car, have another person with a garden hose, spray water around the rear windows and where ever you see any kind of seal in the back. also try and spray water up from the bottom of the car to make sure that you do not have any leaks from the bottom.

The switches used in the headlight relay operate via one circuit to control the parking lights, another current for driving lights and the third operates the high beams. One or multiple switches in the set can fail due to corrosion, excess current or exposure to damp conditions, resulting in total loss of headlight function or the inability to switch between beam brightness. The operator should inspect the switches for signs of damage or wear and replace them as needed.

Read more: Chinasinoy Electron

Call the dealership and ask them how to reset the electronic on your Ford Expedition after changing the battery. Anything else is happen? Maybe like the radio wont turn on, hit the turn signals and the windshield wiper turn on. ***** things happen after replace the battery. I know what it is, it the darn wigits. GB you....stewbison

The third row seats do fold flat. If you have the owners manual, it will have instructions on how to fold the seats. If you don't have a manual, drop by your nearest Chevy dealer and I'm sure they would be glad to show you how to fold the seat.

By Guest on Jul 04, 2010
2004 expedition third row seat will not go up. The fuses are good. Both motors would not have gone out at the same time. Do you know where any breakers or relays are?

No. THe latch points for the removeable third row seating has to be factory installed and anchored during manufacturing. The third row seat latches in similar to the same latches the doors used to close. To maintain the safety durign a crash those anchors have to be attached to body frame during assembly. There are aftermarket foam seats that are rear facing and simply sit on the floor of the cargo area but they are not safe for use while vehicle in motion and are aftermarket items. They are typically used to sit on while the car is parked and the lift gate is open, such as backing up and watching a sporting event. They are not suitable for long term use or while vehicle is in motion.

I drive a 2008 Suburban LT and my company has a true work "fleet" suburban. The only difference between these two that I have is the back of the fleet vehicle has a thick rubber mat in the back with no seats. After removing the black mat I found that the channels and rods that the rear seats clip into are present. The third row seats are installed by clipping them in no bolts or tools are required.

My experience with this in the past was yes, but it had to be done by factory authorized, installer, obviously for insurance liability issues that may arise. If you check,(don't have to buy) for price and availability from GM dealer, they will probably advise you of any such requirements, and if they don't say anything, you ask them. I know with my experience, with Chrysler, and basically same idea, I could pay for the seat, but it would be shipped to installer, to gaurantee done by them. That way everybody's rear was covered.