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Buick Rendezvous Accessories and Modifications



  • rgraberrgraber Posts: 2
    Did you ever post plans for your storage shelf for the Rendezvous? I'd love to see them. I have '02 REN and I think it is a great idea....
  • My wife has a 2006 RDV and I have a 2006 F150 5.4. We're just a little surprised that they are getting very similar gas mileage.

    Does anyone make a cold air intake and/or a tuner for the RDV?

  • spike99spike99 Posts: 239
    My wife allowed me to buy her a 2003 FWD RDV approx 2 years ago. Even since the day we bought it, I always felt it needed more rear lights. Mostly because the rear of this vehicle has high mounted lights. Today, I installed a simple ID Bar (which has 3 little lights) under its rear bumper using a simple 90 degree piece of steel. If wondering, these 3 little lights are connected to its running/clearance lights (brown wire).

    For some pictures, surf:
    ID Bar: - - 1.jpg - - 2.jpg

    If you are thinking of adding more rear lights to your non-trailer hitch RDV unit, this modification can be `cloned` on your RDV as well...

    Hope this helps others...

  • Spike...

    Hey awhile back you were on edmunds and published a picture to help another person who was trying to figure out what all the plugs were in the back of his rendezvous.

    He wanted to know what different ones did. Specifically so he could install a wiring harness and/or brake controller. YOu posted a nice picture... no longer hosted by photobucket...

    And explained what each one did.

    Its gone now and I need that info....

    Can you help by sending me the picture and the info?

    Here is a link to show you what I was talking about...

    pauls02, "Buick Rendezvous Accessories and Modifications" #233, 11 Feb 2006 7:04 am

    YOur info was down at message 252 and 254.

    Can you do the same for me and email me with that info?

    email to replace the AT with an @. Thanks
  • spike99spike99 Posts: 239

    I can't seem to find my previous post / reply. Thus, here's the same info about installing a Class III hitch and its wiring for onboard Brake Controller.

    For video - to install the Class III hitch:

    For factory 4 pin Wire connector on RDV vehicle, puchase:
    Note: Factory V92 plug under the rear right bumper area. Simply remove its blue plug and "plug in" the new V92 trailer wiring adaptor cable. Surf above URL for a picture. If wondering, I connected the "brown - running / clearance" and "white - ground" wires from this bundle to my customized rear ID bar (3 lights).

    For a trailer with onboard electric brakes, puchase a 7-pin connector and mount this connector under the vehicle's rear bumper. Many need to buy its galvanized steel mounting plate as well. For a picture of this 7-pin connector, surf:
    Note: Double check the "connector" on your existing trailer (that has its own onboard brakes). It may have a 6 pin connector or a 7-pin connector with round holes. Thus, a slightly different rear connector may have to be bought. For now, let's assume your trailer needs a 7-pin connector with blade contacts (that's shown in the above URL).

    Using the 4 pin leads from your factory V92 "pig tail" and installed 7-pin connector (mounted under rear bumper area), connect the available wires together. Use a scratch pad and 12V tester to ensure each wire (and ground) is properly connected. For picture of what wire into 7-pin plug, surf:

    The next steps should be done by a 12V auto specialist. For me (on my other vehicle - which is our tow vehicle with Brake Controller), I "pulled in" the 10 guage wiring but got my auto mechanic to connect their ends. Using 2 x 10 guage 12V wiring (one blue and one red - for example), connect to your 7-pin connector and pull these wires to the front of your vehicle. For my other vehicle, I pulled / fastened these wires on the outside (under the vehicle). If you like removing interior panels and such, run these thick 10 guage wires on the inside. If wondering, 1 wire (for example, RED wire) goes from the vehicle's "accessory" fuse to your 7-pin connector - pin #4. When your vehicle's ignition key is ON, this pin #4 is live. If wondering, pin #4 is often used to "trickle charge" a 12V battery inside the attached trailer (assuming the attached trailer has on onboard 12V battery). When the vehicle's key if OFF, there's NO current down this #4 wire. The other 10 guage wire (re: blue wire) that was installed goes from 7-pin connector Pin #2 (electric brakes) to the vehicle's onboard brake controller. For pin assignments within 7 pin connector, surf:

    For more brake controller wiring details, surf 1/3 page down:

    Fully test all signals, running / clearance lights, brake controller pin #2 and 12V live pin #4. If necessary, do replace the vehicle's factory default load "flasher unit" with a HD (Heavy Duty) Flasher unit as well. Thus, stopping your flasher from flashing too fast (when towing a trailer). One of those "try it and see how fast it flashes for you" things.

    Note: After wiring is fully tested, use "plastic cable loom" to protect the rear wires and use galvanized strapping to secure the wire loom bundle. External silicone the back of the 7-pin connector as well. Thus, keeping crud and rust out of this critical connector. Also... Mount the 7-pin connector on the vehicle's rear bumper. Do NOT drill holes within the installed trailer hitch. Extra holes weaken a hitch.

    BTW: To connect a standard 4-pin trailer to your newly installed 7-pin connector (say a small utility trailer without brakes), simply install a 7-4 pin connector. For a picture, surf: 336745

    Hope this helps...

  • spike99spike99 Posts: 239
    At times, I don't know my left from my right. LOL!!!!

    The V92 plug (for trailer wiring harness) is located under the "left" rear bumper area. For more pictures of how I installed the ID bar, its V92 location, plastic loom and PL Premium (for water protection) coating, surf contents of:

    Note: To enlarge each thumbnail picture, simply click on it.

    Hope this correction and more pictures helps as well....

  • steverstever Posts: 52,683
    You can also put photos on your CarSpace page and they'll be easier for new folks to find in the future.
  • spike99spike99 Posts: 239
    Good idea. Didn't realize a photo storage feature existed on this forum.

    Testing URL...

    Hope this works... Good. It works. Thanks for sharing this trick. LOL...

  • Instead of "left or right" which is always confusing to everyone.

    Perhaps you could tell us more clearly if you used the following... DRIVERSIDE or PASSENGERSIDE.

    I've looked at the photos and they appear to be passengerside rear bumper area if the tire placement and laying under the car are taken into account.

    However, looking under MY rendezvous I see a pigtail just hanging loose under the DRIVER side back of the wheel well area. The other part of this continues up into the back and I assume eventually the rear driverside light.

    Please help us to konw what we are looking at in the photos... were they driver or passenger side shots?

    I also am unable to tell exactly what you did with the four wire plug that you purchased.

    Let me restate it, I'm looking ofr a simple way to plug in and have lights to a four pin camper plug. I'd rather just connect one plug if thats possible.
  • steverstever Posts: 52,683
    Works perfectly - thanks!
  • spike99spike99 Posts: 239
    ok - simple terms...

    The V92 outlet is under the rear bumper area - driver's side.

    To connect a utility trailer that does NOT have its own onboard electric brakes, simply install a Class III hitch (as shown in the video). Then, buy the V92 to 4-pin Flat connector (which is approx 2.5 ft long). Connect the V92 plug into the vehicle's V92 outlet. Plug the other end of the wire (which is a 4 flat end) to your utility trailer.

    If you pull a tent trailer or utility trailer that has its own onboard electric brakes, then install a 7-pin connector instead. Install a Brake Controller in your RDV. And if your trailer has onboard battery (like tent trailers), then install a 12V "live" wire as well.

    If only pulling a light weight utility trailer that has Surge Brakes or NO onboard electric brakes, simply purchase the V92 to 4-pin wire.


    For video - to install the Class III hitch:

    For factory V92 to 4 pin Wire connector on RDV vehicle, puchase:
    Note: Factory V92 plug under the rear right bumper area. Simply remove its blue plug and "plug in" the new V92 trailer wiring adaptor cable. Surf above URL for a picture. If wondering, I connected the "brown - running / clearance" and "white - ground" wires from this bundle to my customized rear ID bar (3 lights).

    Forgot to mention... I do NOT tow anything with my RDV. My mechanic tells me that my 2003 RDV FWD isn't made for towing. Yes. I have a Class II trailer hitch for my RDV (which is hanging in my shed) but did NOT install it. For towing (even light weight utility trailers), I use my other vehicle - which is made for towing. My RDV's V92 to 4-pin 2.5 long wire harness was modified to connect into my vehicle's custom ID "light bar" instead. For this, I simply cut its 4-pin flat connector off and spliced its brown (running lights) and white (ground) wire into its ID light bar. Its green and yellow wire in this wire harness 2.5 long bundle were left "as is".

    Hope this helps as well...

  • cruzakcruzak Posts: 11
    Hello Spike99. Regarding about what you mentioned on your last paragraph, it made me second thought if I'm going to put a trailer hitch Class III on my 2005 RDV AWD (3.4L V6). According to my research it as only 185hp and 210 lb-ft torque maximum, I'm planning to buy utility trailer which has 1700 lbs gross wt. Do you think its appropriate/safe to go on with the plan or it's not good idea at all?
  • spike99spike99 Posts: 239

    For a "light weight" utility trailer of say "1700 lbs gross wt.", your 2005 AWD RDV should easily pull it. And pull it without too much stress. If wondering, my one utility trailer has a 3,200 lbs axle and my other vehicle has a 3,600 lbs axle. Thus, I use a differt vehicle (my non - RDV vehicle) to pull either of my utility trailers. Thus, allowing my RDV to remain a "run about" vehicle. For your 2005 RDV, pulling a utility trailer of "1700 lbs gross wt." is very little stress on it.

    If you pull a "loaded" utility trailer WITH rear cargo and/or WITH lots of passengers, I'd recommend installing an Aux Transmission Cooler as well. Thus, keeping its tranmission oil "cool". Cool = longer transmission life. For example:

    And if the rear of your vehicle has too much rear sag, you might want to investigate Timbrens or Air Bag suspension upgrade as well. re:

    As long as you pull a light weight utility trailer and don't over "push it" during stop/go traffic, against strong head wind and/or up the steep hills, your 2005 RDV should easily pull a max loaded 1,700 lbs utility trailer.

  • tammyltammyl Posts: 7
    I want the passenger to be able to key in directions so I was wondering if anyone knew how to over ride the system in a 2006? We also have a lexus and had no problem over riding it. Thanks for any help.
  • bob427bob427 Posts: 1
    any advice?- I wan't to use e3 spark plugs.I was told by a mech that they'er no good. I wan't to improve mileage is there any other sugestions. bob
  • spike99spike99 Posts: 239

    Not too sure about E3 Plugs myself. Especially E3 design (which might burn hotter) that's being used in a small GM engine - within a heavy weight vehicle like the Rendezvous.

    To learn what E3 plug design is, watch video at:

    To learn any "high problem" pattern areas, simply google "e3 spark plug problems".

    re: oq=e3+spark+plug+

    Based on the posts I've read, many folks seems to like the E3 spark plug design.

    Hope this helps...

  • Hi' just wondering where you purchased your running boards from.You did a real good job.
This discussion has been closed.