Select your product to confirm this information applies to you

dēzl™ LGV/OTR800, LGV/OTR810, LGV/OTR1000, or LGV/OTR1010 Device Routing Inaccurately or Giving Wrong Directions

If a trucking device is routing out of the way or the wrong way, there are a few things that could cause this.

Examples of Truck Routing Issues Include:

  • The device is recommending a route that is far slower/longer than the optimal route.
  • The device is offering out of the way routes to a destination.
  • The device is making illogical routing choices (e.g. routing off of a highway, and then recommending to re-enter the highway).
  • The device is ignoring avoidances during a route (e.g. recommending an unpaved road, when unpaved roads are set to be avoided).
  • The device refuses to route through an area where trucks are allowed.
  • The device is avoiding routes that the truck Profile (weight, height, etc.) should allow.
  • Incorrect Hazardous Material routing.

If driving with an active route (you have entered a destination and touched Go) and a shortcut is taken, the device will recognize the new path and recalculate the route using that change. It may try to go back to the original path at first but typically will adjust to the new route as progress is made.

Note: Out of date maps or software can cause the device to route inappropriately. For instructions on updating the device's software and maps, view the appropriate video tutorial below.

dēzl™ LGV800, dēzl™ LGV1000, dēzl™ OTR800, and dēzl™ OTR1000 GPS Navigators

dēzl™ LGV810, dēzl™ LGV1010, dēzl™ OTR810, and dēzl™ OTR1010 GPS Navigators


Navigation Settings

See the Videos Below about Navigation Settings on your Device

dēzl™ LGV/OTR800 and dēzl™ LGV/OTR1000

dēzl™ LGV/OTR810 and dēzl™ LGV/OTR1010

There are navigation settings on the device that can affect the way it calculates routes.

  • Calculation Mode – Options here are Faster Time and Off-Road. Garmin recommends keeping this set to Faster Time to take advantage of the most efficient and direct roads.
  • Avoidances – This setting gives the ability to tell the device what roadways are unwanted. By placing a checkmark in the option boxes, it is telling the device to not use these items when calculating routes. If a selection is unavoidable on a route it could force the device to navigate well out of the way. Garmin recommends reviewing these items when going on long trips or driving in a new area to prevent using unnecessary avoidances.

Usage Mode and Vehicle Profile

The Usage Mode refers to different ways the device can navigate, (eg. Car, Truck). Car mode will give turn-by-turn directions based on mapping and road information. Truck mode will provide turn-by-turn directions using major roads and is designed for commercial trucks. This setting will also attempt to route away from parkways or small streets where it would be hard to turn around with a larger vehicle.


Vehicle Profile

An improperly entered vehicle profile can cause significant routing issues. Be sure to check the vehicle profile and ensure that all of the information entered is accurate for the vehicle.

See the appropriate owner's manual below for instructions to edit the vehicle profile.


Gross and Axle Weight

Ensure the actual weight of the vehicle has been set for the gross and axle weight on the profile, and not the maximum possible weight of the vehicle. Setting the profile for the maximum possible weight may result in unneeded restrictions.

For example, on many interstate highways, the maximum gross weight allowed is 80,000 lbs./40 tons. If the profile is set to this weight, it may avoid roads with this restriction. If the profile is set for the actual weight carried below this limit, restrictions should not be encountered.

Also, ensure that the rest of the trucking profile information is accurate to avoid incorrect routes. Information on properly configuring the axle weight on the vehicle profile can be found in dēzl™ OTR Devices and Axle Weights.

NOTE: On European devices, if you enter two trailers or enter a tandem axle trailer in a vehicle profile, any trailer configurations will base the routing on this profile and limit your speed to 20mph to comply with local law within the UK. This is based on FTA law. Ensure if you are carrying a long single trailer you do not set it as two, as this will cause the speed limitations above. Areas that use dual carriageway or similar systems can also have speed limit restrictions due to your vehicle profile being created incorrectly or using tandem axels. Ensure your vehicle profile is checked before your journey.

If an address can't be located, wrong speed limits are displayed, or Points of Interest are missing or out of date, see Reporting Map Errors on Automotive Devices.


Speed 

See the FAQ's below.


Preview a Route, Choose an Alternate Route, or Edit a Route:

There may be times you want to preview a route, see what alternate routes are available, or edit and shape the route. 

For steps to do this on your particular device go to:

  1. Garmin Support Center
  2. Enter your device model (Ex. dezl OTR810) or serial number.
  3. Type Alternate Route in the 'Search for a solution' field.
  4. Select the FAQ from the list.