Re: Service TPMS message and new 20" SRT reps
A couple years ago I had the same issue when I installed SRT Reps and new Dorman Sensors on my 06 GCO. The whole story would take too long so I'll cut to the chase. What has to be done is reprogramming of the Wireless Control Module (WCM), sometimes called the Sentry Key REmote Entry Module (SKREEM) module with the ID numbers of each of the new sensors and the wheel/spare position of each one. You'll need either a StarScan (dealer diagnostic tool) or some sort of advanced computerized diagnostic tool to do this. I have an Autel DS708 which has this capability. Another option is to purchase a programmable sensor kit from Dorman. This includes a Sensor ID programming tool and 4 programmable sensors. To use this though, you'll need to have the original sensor ID numbers that were programmed into the WCM. You then program the original ID's onto the new sensors...cloning. The sensors you installed will read the pressures correctly, but because the sensor ID's in the wheels don't match those in the WCM, you'll continually get the message you're receiving.
05 LX/RT & 06 WK/GCO, modded similarly, MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI W/Add Air Inlet, K&N Filter, Sonnax Trans Press Booster, SC Tuner W/Adv Trans Tuning App, DS Tuner, Cust tube headers w/3 in. catback, Bilsteins, SRT frt/rear bumpers, Eibach SRT Lwr Sprgs & Sways, FRI Sidewinder Cam Adv 2*, 6.1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils/.060 plug gaps. 20 in. SRT Reps.