Here is a question for someone who is a lot smarter than me and several other folks.
I have a 2007 Touareg with Nav and also a new Lexus ES350 with Nav. When I first tested the Lexus Nav driving home, the system ended before I made the last turn to my house. When parked side by side in my driveway, the long/lat readings on the two systems are different. When I checked the readings with my Magellan handheld gps, it agreed perfectly with the Touareg Nav, indicating to me that the Lexus Nav was off. The long/lat readings were as follows:
Lexus N33 30 21 W101 53 42
VW N33 30 36 W101 53 71
Mag. N33 30 363 W101 53 711
As you can see, the Lexus is several seconds off both North and West from the other two. Also, on a trip to our daughters house in Dallas, the Lexus Nav again ended well before the last turn and was at least a block off.
The Lexus has a display which shows the address of your current location. This display shows the address of 9773 when in my driveway, but the actual address is 9709. The last address on our street is 9713, so the 9773 address is totally fictitious.
On a test trip to my pharmacy, the Lexus Nav told me that the store was on the south side of a major artery when in fact, the store is on the north side of the street. Again, the system is off a couple of hundred feet at least.
Here's a kicker. When I took the Lexus in for the 1k checkup, I was given a new RX with Nav as a loaner(that's a whole "nother" story). In my driveway, the RX showed exactly the same readings and address as my Lexus ES. So, if there is an inherent problem, it is not with my particular car. I asked the dealer to check my Nav for this problem, and their answer was,, of course, that everything was working correctly and it might well be.
Both the Lexus and the Touareg systems are Navtech's.
Several of us on two Lexus forums are discussing this, but no one has a clue as to the answer.
Can anyone over here offer any insight???:confused2::confused2::confused2:
Rick
I have a 2007 Touareg with Nav and also a new Lexus ES350 with Nav. When I first tested the Lexus Nav driving home, the system ended before I made the last turn to my house. When parked side by side in my driveway, the long/lat readings on the two systems are different. When I checked the readings with my Magellan handheld gps, it agreed perfectly with the Touareg Nav, indicating to me that the Lexus Nav was off. The long/lat readings were as follows:
Lexus N33 30 21 W101 53 42
VW N33 30 36 W101 53 71
Mag. N33 30 363 W101 53 711
As you can see, the Lexus is several seconds off both North and West from the other two. Also, on a trip to our daughters house in Dallas, the Lexus Nav again ended well before the last turn and was at least a block off.
The Lexus has a display which shows the address of your current location. This display shows the address of 9773 when in my driveway, but the actual address is 9709. The last address on our street is 9713, so the 9773 address is totally fictitious.
On a test trip to my pharmacy, the Lexus Nav told me that the store was on the south side of a major artery when in fact, the store is on the north side of the street. Again, the system is off a couple of hundred feet at least.
Here's a kicker. When I took the Lexus in for the 1k checkup, I was given a new RX with Nav as a loaner(that's a whole "nother" story). In my driveway, the RX showed exactly the same readings and address as my Lexus ES. So, if there is an inherent problem, it is not with my particular car. I asked the dealer to check my Nav for this problem, and their answer was,, of course, that everything was working correctly and it might well be.
Both the Lexus and the Touareg systems are Navtech's.
Several of us on two Lexus forums are discussing this, but no one has a clue as to the answer.
Can anyone over here offer any insight???:confused2::confused2::confused2:
Rick
