Transponder message keeps coming up but no reception

Your Rendezvous has GM PasskeyIII

"When trying to start the vehicle if the engine does not
start and the SECURITY message comes on, the
key may have a damaged transponder. Turn the ignition off and try again."

So if the SECURITY is showing on message center then the key is not recognized and you will need to try a different transponder key.

If SECURITY is not showing, then set the emergency brake and move transmission selector to N(uetral), keep foot on brake and try to start.

STARTING DISABLED REMOVE KEY
Refer to Theft Systems Description and Operation in Theft Deterrent

STARTING DISABLED REMOVE KEY
The radio illuminates the STARTING DISABLED REMOVE KEY message when the VTD system has disabled the starting system. The radio receives a message from the theft deterrent control module via the serial data circuit requesting illumination.

Your best bet have it towed to a qualified repair shop .
The vehicle theft deterrent (VTD) system functions are provided by the theft deterrent control module. When an ignition key is inserted into the ignition lock cylinder and the ignition is switched ON, the transponder embedded in the head of the key is energized by the exciter coils surrounding the ignition lock cylinder. The energized transponder transmits a signal that contains its unique value, which is received by the theft deterrent control module. The theft deterrent control module then compares this value to a value stored in memory, learned key code. If the value is correct the theft deterrent control module sends a random generated number to the transponder, this is called a challenge. Both the transponder and the theft deterrent control module perform a calculation on the challenge, if the calculations match the theft deterrent control module sends the fuel continue password via the serial data circuit to the Engine control module (ECM). If either the transponders unique value or the calculation to the challenge is incorrect the theft deterrent control module will send the fuel disable password to the ECM via the serial data circuit. The components of the VTD system are as follows:
• Theft deterrent control module
• Engine control module (ECM)
• Ignition key (Transponder)
• Ignition lock cylinder
• Security indicator

It could depend on your coverage/reception at the time the text messages are sent to you. Poor coverage/reception (few or no bars) sometimes causes delays in messages being received, or can cause you to miss messages.

Or perhaps your plan doesn't include MMS messages (multimedia messages, such as those with pictures). Check your plan or call your provider to determine if you can receive MMS messages.

just a guess have you tried the AV button?

P1801:------- Immobilizer Transponder Error. ------------------------------ P1805/P1806:----- EEPROM Error/VIN Mismatch. ------------- In most cases the error 1801 and 1805 comes up together.But error 1806 is very rare.But 1806 and 1805 both are error related to same problem. P1801 and P1805/06 are immobilizer errors. Does your car have an anti-theft
device which reads a transponder in the key? If so, the problem is with
this system. The immobilizer problems are typically with thelock cylinder sensor. --------------- Keep updated with further queries if required.Thanks.

check with the version of the browser that you are using......

P1685 Skim Invalid Key.

The Sentry Key Immobilizer Module contains a Radio Frequency (RF) transceiver and a microprocessor. The SKIM transmits RF signals to, and receives RF signals from the Sentry Key transponder through a tuned antenna ring integral to the SKIM housing. When the ignition switch is turned to the On position, the SKIM transmits an RF signal to the transponder in the ignition key. The SKIM then waits for an RF signal response from the transponder. If the response received identifies the key as valid, the SKIM sends a valid key message to the PCM over the PCI data bus. If the response received identifies the key as invalid, or if no response is received from the key transponder, the SKIM sends an invalid key message to the PCM. The PCM will enable or disable engine operation based upon the status of the SKIM messages.

you can look it up here:
http://www.engine-light-help.com/check-engine-light-domestic.html

The waste ink absorber is inside under the printer, you need a shop to replace them and reset the counter.

u cannot eliminate the transponder....sorry.. but u need to have it fixed and or reprogrammed at a dealer that will service and repair a daewoo..try calling ur local gm dealer and ask them where u can take it...they were taking them in b4 when daewoo went under

Have you tried to reboot your phone? That usually helps because you probably don't have very good reception and restarting it will help detect better reception.