Terrain FWD L4-2.4L (2010)
remove road grime, brake dust and grease.
Mounting and Balancing
Refer to the most recent version of Corporate Bulletin Number 08-03-10-004A for proper methods for mounting, balancing and installing accessory
wheels and tires.
The mounted and balanced wheel/tire assemblies MUST meet GM service guidelines for measured radial force variation to ensure vibration free
performance.
The following radial force variation numbers for the assembly should be used as a guide:
If any wheel/tire assembly does not meet the above standards, refer to Corporate Bulletin Number 00-03-10-006F: Information on Tire Radial Force
Variation (RFV) for further information on possible corrective actions.
Vehicle Modifications
Tire Label
After installing the recommended P235/50R19 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 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 and information relevant to occupant/cargo
capacities.
Tire Type/Pressure Selection
To provide a more accurate function of the Tire Pressure Monitoring System, it is necessary to update the body control module (BCM) with the correct
tire type and pressure information. The factory 17" and 18" tires have a placard inflation pressure of 241 kPa (35 psi), which must be changed to 250 kPa
(36 psi) when upsizing to the 19" accessory tires. Using the Global Diagnostic System (GDS 2), follow the steps listed below to select the appropriate
tire type/pressure:
1. Enter "Module Diagnosis".
2. Select "Body Control Module".
3. Select "Configuration/Reset Functions".
4. Select "Tire Type/Pressure Selection".
Tire Pressure Monitor (TPM) System
To avoid system malfunctions, it is necessary to install tire pressure sensors in the accessory wheels. Replacement sensors can be obtained or sensors
from the OE wheels can be transferred to the accessory wheels. After the wheels are installed on the vehicle, it is necessary to learn the new sensor
identification codes/locations into the body control module (BCM).
TPM Sensor Relearn Procedure
Note
If using the scan tool (GDS 2) to enable the learn mode, the EL 46079 Diagnostic Tool must be used to activate the sensors. When this preferred method
is used, any stray sensor signals will not affect the learn procedure. In the event a particular sensor's information is displayed on the special tool upon
activation but the horn does not chirp, it may be necessary to rotate the wheel valve stem to a different position due to the sensor signal is being blocked
by another component. If using the keyless entry transmitter or driver information center buttons to enable the learn mode, the EL 46079 Diagnostic Tool
or Pressure Increase/Decrease Method may be used. Before proceeding with this method, ensure that no other learn procedure is being performed
simultaneously or that tire pressures are not being adjusted on another Tire Pressure Monitor equipped vehicle within close proximity. Stray signals from
other tire pressure equipped vehicles just driving by can be inadvertently learned. If any random horn chirps are heard from the vehicle while performing
the learn procedure, most likely a stray sensor has been learned and the procedure will need to be cancelled and repeated. Under these circumstances,
performing the tire pressure Learn Procedure away from other vehicles may be highly recommended. In the event a particular sensor activation does not
cause the horn to chirp, it may be necessary to rotate the wheel valve stem to a different position due to the sensor signal is being blocked by another
component.
Preferred Scan Tool (GDS 2) Learn Enable Method
