Here’s some additional information on the spare tire:
GM’s part number for the [donut] spare tire kit for a 2010-2012 SRX is: 095987580
The parts department from my dealer (Fitzgerald Cadillac in Frederick Maryland) insisted that there’s no such thing as an SRX spare tire kit. Rather than argue with them, I ordered a kit from:
Luke Butler
Lindsay Cadillac
1525 Kenwood Avenue | Alexandria, VA 22302
703-647-8633 Direct | 703-998-6062 Fax
lbutler@LindsayCadillac.com |
www.lindsaycadillac.com
Lindsay had the kit in stock and charged $386 plus $36 shipping, but $0 tax (due to my non-Virginia address). That represents a recent price increase. I live in Maryland and a large box arrived the next day. The kit is made in China, but in spite of that, all components appear to be excellent quality.
See the attached “SRX Spare Tire Kit Contents” photo and the GM box “SRX Spare Tire Label” photo with the part number.
I took the 1-piece aluminum wheel, the tire, and the included rubber air-valve to a Sears Auto shop. They charged $22 to mount the tire and balance the wheel. Took me about 30 minutes to “install” the kit in the SRX. It’s really simple and it fits perfectly. The included instructions were adequate; mostly, all you need are the diagram of how it installs.
Cadillac Owner Member SoCalSRX posted numerous photos of the kit with step-by-step instructions on installation, on this forum:
http://www.cadillacforums.com/forum...n-forum-2010/181435-srx-spare-tire-kit-8.html
I’d add a few tips to SoCalSRX’s instructions:
- Open the double rear stowage compartment trap doors all the way, and hold them vertically against the back seat using the adjustable luggage bars, as in the attached “SRX spare tire in place” photo. Thus held, this is a one-person job.
- The Styrofoam Rear Compartment Stowage Tray is held down with a single nut/washer which can be unscrewed with an R-45 Torx wrench; in addition, the Cadillac tool that installs the roof-rack cross-members is an R-45 Torx; see the attached “SRX Spare Tire Hold Down Nut” photo of that tool and the brass/plastic nut/washer. I put the Stowage Tray in the attic, but it’s unlikely it will ever be needed again.
- There is space to store small items around the spare tire, before inserting the black Styrofoam Rear Compartment Floor Stowage Cover – but if they are steel, wrap them in a towel so they don’t rattle. Notice the jumper cables in the attached “SRX Spare Tire In Place” photo..
Based on our scales, the spare tire kit results in a net vehicle weight increase of 34 pounds. A stock Performance SRX has a curb weight of 4277 pounds. Thus, the spare tire increases vehicle weight by 0.0079 %, or 8/10ths of 1%. There won’t be any difference in mileage because you’re carrying a spare tire.
The spare tire size is T135/70R18 18x4.5; cold tire pressure is 60 PSI. The tire’s outside diameter is 25", quite a bit smaller than a regular SRX tire @ 29.5". Maximum driving speed on the spare is 80 Kph, or 50 mph.