Corvette V8-6.2L (2008)
^ When adding proper tire air pressure, it is important to remember fluctuations in outside air temperatures and tire temperatures effect tire air pressures.
^ After you have added the proper tire pressure, if the vehicle has a DIC (after the system has updated), check to see if DIC displays are the same
readings as the tire pressure gauge used (adjust as necessary).
^ Only perform a TPM sensor re-learn after a tire rotation or system part replacements and use the Tech 2(R) to initiate the relearn whenever possible to
avoid invalid sensor I.D. learns.
Important:
Always take outside temperature and tire temperature into consideration to properly set tire pressures. Foe example, on colder days (20°F/-7°C), if
setting tire pressure when the vehicle has been indoors (60°F/16°C) or the tires are warm from being driven, it will be necessary to compensate for the
low outside temperature by adding 21-27 kPa (3-4 psi) more then the placecard pressure. At some later time, when the vehicle has been parked outside
for a while, the tires will cool off and the pressures will drop back into the placecard range.
Important:
Recently, nitrogen gas (for use in inflating tires) has become available to the general customer through some retailers. The use of nitrogen gas to inflate
tires is a technology used in automobile racing. Tires inflated with nitrogen gas may exhibit less of a pressure change in response to outside temperature
changes. Nitrogen gas inflation is compatible with GM TPM sensors. For additional information, refer to Corporate Service Bulletin 05-03-10-020C.
Important:
All Models (Except the Pontiac Vibe): Do not perform a TPM relearn at PDI, the system has already been set at the Assembly Plant. Do not perform a
TPM relearn after adding air to the tires. The low tire light is similar to the low fuel indicator and adding something (fuel, air) to the vehicle makes that
light turn back off again. Note that because of system behavior, some vehicles must be driven a short distance before the sensors recognize the increase
in pressure and turns the light off again.
Pontiac Vibe Only: Do not use the TPMS reset button to turn off the light. The system will update and light will turn off when all tire pressures have
been adjusted followed by short distance drive.
Important:
All models (except the Pontiac Vibe): Each tire monitor sensor is learned to a specific vehicle corner. When performing a TPM relearn (only after a tire
rotation or replacement of a TPM sensor or Module), always use the Tech2(R) to initiate the J 46079 relearned process. Tech 2(R) - initiated relearns
lock out other vehicle TPM signals that may be broadcasting in the area. Only signals initiated by the J 46079 tool will be accepted. This method avoids
storing false TPM I.D.s and will prevent customers from returning with dashes (--) displayed in tire pressure readouts and/or a flashing tire pressure
monitor (TPM) light. Checking the four TPM I.D.s with the Tech 2(R) prior to and following relearn to verify they are the same can prevent invalid I.D.
learns.
Pontiac Vibe Only: Tire Monitor Sensors are not learned to a specific vehicle corner. Do not perform a TPM Reset after tire rotation. The TPMS Reset
button must only be used during pre-delivery inspection by the dealer to initialize the system (after all tire pressures have been adjusted properly) or
when a Tire Pressure Monitor System component is replaced. The J 46079 tool does not work on Vibe TPM sensors. A TPMS relearn on Vibe must be
preformed with a Tech 2(R) to set the TPMS Module in learn mode. The TPMS sensor IDs are entered through the Tech 2(R). Refer to SI for further
Vibe TPMS information.
Labor Operation and Repair Order/Warranty System Claim Required Documentation
Important:
The ONLY time labor operation E0726 or E0722 should be used is to diagnose for a system issue. That should ONLY occur if, at key ON, without
starting the engine, the Tire Pressure Monitor (TPM) blinks for one minute and then stays on solid with a Service Tire Monitor System message (on
vehicles equipped with a DIC) If that occurs, a TPM system problem exists and the system will have set a DTC. If one of these operastions is used, the
following Repair Order and Warranty System documentation are required:
^ Document the customer complaint on the Repair Order.
^ Document the TPMS DTC that has set on the Repair Order.
^ Enter the TPMS DTC in the Warranty System (WINS) in the Failure Code/DTC field on the claim submission (refer to the Claims Processing Manual,
Section IV, Warranty claim Data, Page 6, Item G).
If the above information is not documented on the Repair Order and Warranty System, the claim may be rejected. If the Warranty Parts Center (WPC)
generates a request, this repair order documentation must be sent back.
