I purchased
a 2007 Nissan Altima in January of last year, and it's been great. Even
though I've driven over a 5-inch high piece of wood and bombed it off of a foot
high drop on a dirt road. I felt it was worth paying the "extra" for the
technology package. Bluetooth? Check. Navigation? Check. Traffic information? Check.
The Bluetooth works like it's supposed to, although it is hard to hear sometimes.
I can't fault the car, because the inside of a car isn't dead quiet like the commercials
would lead you to believe. The navigation works well, with some flaws. I've found some aftermarket devices that
allow you to override the buttons while driving, but haven't implemented them in
my own car yet. Kinda scared to do that, lest I turn my car's wiring into a rat's
nest.
But that isn't what this entry is about. I'm talking specifically about the XM NavTraffic
feature linked with my navigation system that is supposed to allow for real-time
traffic information to be overlaid on your map. It works as advertised, and indeed
does show green/orange/red lines next to the road if there is traffic, and little
icons if there is an accident or construction.
The problem is, most of the time the data was completely worthless. I don't know
if it's on a delayed update or what, but driving up to Riverside, the roads would
be all green. I can tell you from personal experience that the I-15 to I-215 to
I-60 route is not "all green", especially during morning or afternoon
traffic. It got so bad that I eventually started manually setting avoidance areas
in my navigation system.
The accident information was also delayed. If I was sitting in traffic caused by
an accident, rarely would I see it on my screen. For the times it actually did show
on my screen, it leads me to make my second point-- Nissan's navigation system doesn't
re-route around bad traffic or accidents!
Sure, there is an option to enable the feature, but it does nothing as far as I
can tell. At least on my old Magellan GPS unit, it would announce "re-calculating
route due to traffic conditions." Heck, the Magellan unit would sense that
I was on a freeway and doing stop-n-go traffic, then automatically route me 5, 10,
15 or 20 miles around the block of freeway. Unacceptable that this feature is not
found in a much larger (and more expensive) unit.
So eventually, it just didn't make sense anymore to have XM NavTraffic in my car.
Maybe your car interprets XM's data differently (and actually avoids problems),
but definitely not in a Nissan Altima.
While I'm complaining, I think I'll point out that it seems the XM audio decoder
in my vehicle is not the most current decoder chip utilized by XM (even though it's
a 2007 vehicle) -- this leads to lower sound quality. It reminds me of the old Delphi SkyFi XM radio I had my previous cars. I wasn't very
happy with the quality at all, until someone over at XM411.com revealed to me that
the newer SkyFi2 had an upgraded decoder chip. Sure enough, I bought a SkyFi2 and
had a much better sound quality experience. Again, it's a shame that a "new"
car doesn't have this upgraded chip.
Anyways, I just thought I'd give everyone a post-mortem on my car. Enjoy.