H3 L5-3.7L (2007)
Wheel (Lug) Nuts
Each wheel nut should be torqued in the appropriate torque sequence (refer to graphic) and to 140 Nm (103 lb ft). The torque should be re-checked after
the first 160 km (100 mi). To help protect the wheels from theft, a wheel lock kit is also available.
Caution:
Incorrect wheel nuts or improperly tightened wheel nuts can cause the wheel to become loose and even come off. This could lead to an accident. Be sure
to use the correct wheel nuts.
Care / Cleaning
Use soap, hot water and a 100% cotton cloth to clean and polish the new wheels. If using a wheel cleaner, be sure to select one that will not harm the
wheel surface. Avoid car washes that use carbide tipped brushes, as these may damage the wheel's finish. Periodically clean the backside of the wheel to
remove road grime, brake dust and grease.
Vehicle Modifications
Important:
Vehicle modifications listed below are only required when upsizing from the factory wheels. No changes are required when installing 18" wheels on
vehicles originally equipped with 18" wheels.
Tire Label
After installing the recommended P265/65R18 or P275/55R20 tires, place the provided tire label on the vehicle. The new tire label should be located
within the red box, over the top of the original tire label found on the door jamb. To locate the label within the red box, use the upper and left hand edge
of the red line as a guide. When properly placed, the new tire label will obscure the original tire information. Be sure that the surface is clean and dry.
The surface temperature should not be less than 21°C (65°F). The label is provided as a guide for tire inflation pressures.
PCM Reprogramming
Important:
For proper vehicle operation and to insure coverage under the provisions of the new vehicle warranty, the vehicle must be reprogrammed with the correct
calibration as soon as the 18" or 20" wheels are installed.
^ For 2006 vehicles equipped with Off-Road Chassis Package (RPO ZM6), it will be necessary to reprogram the PCM for speedometer accuracy.
Contact Techline to obtain a VCI number. Use the Service Programming System (SPS).
^ For 2007 - 2008 vehicles equipped with Off-Road Chassis Package (RPO ZM6) or Increased Chassis Package (RPO Z85), it will be necessary to
reprogram the PCM for speedometer accuracy. Contact Techline to obtain a VCI number. Use the Service Programming System (SPS).
^ For 2009 - 2010 vehicles, when upsizing to 18" wheels, all models with the LT285/75R16 tire (RPO QLB) require the PCM to be reprogrammed for
speedometer accuracy. When upsizing to 20" wheels, all models require the PCM to be reprogrammed for speedometer accuracy. Contact Techline to
obtain a VCI number. Use the Service Programming System (SPS).
Important:
