C0775 on 2007-2014 Cadillac Escalade ESV: TPMS, Stalling, and Security Light Fixes

What's Unique About the 2007-2014 Cadillac ESCALADE ESV

The most critical issue for this Escalade and its platform mates is that C0775 often appears with engine stalling, a security light, and anti-theft codes like B3055. This is not a coincidence. The same module, the Remote Control Door Lock Receiver (RCDLR), processes signals from both the 315MHz TPMS sensors and the key fob's anti-theft transponder. Aftermarket accessories like phone chargers, dash cams, or even low-quality LED replacement bulbs can create Radio Frequency Interference (RFI) that jams the receiver, causing it to lose communication with both systems simultaneously. This triggers a TPMS warning and can initiate an anti-theft engine shutdown, a condition well-documented in GM Technical Service Bulletin PIC5650.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this vehicle.

Symptoms You May Notice

• "Service Tire Monitor System" message on the Driver Information Center (DIC).
• TPMS warning light is on (may flash for one minute then stay solid).
• Engine stalls, sometimes immediately after starting or while driving.
• Engine will not crank or start (no-start condition).
• Security warning light illuminated on the dashboard (often a padlock icon).
• "No Fob Detected" message on the DIC.
• Poor or no keyless entry (RKE) range.

Most Likely Causes

1. Radio Frequency Interference (RFI) from Aftermarket Accessories 🔴 High Probability As documented extensively in GM TSB PIC5650M and its revisions, the RCDLR module that reads both TPMS and key fob signals is highly sensitive to interference from devices plugged into the 12V outlets (chargers, dash cams) or other RF-emitting items like aftermarket LED lights. The 315 MHz frequency used by the TPMS/RKE system is easily 'jammed' by poorly shielded electronics.
   How to confirm: Unplug ALL aftermarket devices from all 12V/USB ports. This includes phone chargers, dash cams, radar detectors, and USB power banks. Also remove any non-factory fobs, access cards, or toll passes from the key ring. Clear the codes and see if the stalling and security issues disappear. If they do, the issue is RFI.
   Typical fix: Identify and remove the source of the RFI by plugging devices back in one by one. Replace low-quality phone chargers with higher-quality, properly shielded units. Many owners on forums for the Escalade's platform mates have confirmed this simple fix resolved stalling and TPMS issues.
   Est. part cost: $0-$50
2. Incomplete or Failed TPMS Relearn Procedure 🟡 Medium Probability This is the direct trigger for the C0775 code. It occurs if the relearn process is aborted, if a sensor fails to respond, or if the RCDLR module itself has an issue. The process can be initiated but fail to complete for all four wheels.
   How to confirm: Attempt to perform the TPMS relearn procedure. If the code clears and stays away, this was the issue. If the procedure fails to complete for a specific wheel, it points to a bad sensor. If it completes but the system 'forgets' the sensors after a key cycle, it may point to a faulty RCDLR.
   Typical fix: Correctly perform the TPMS relearn procedure. This can be done without tools by letting air out of each tire in sequence until the horn chirps, or instantly with a basic TPMS activation tool (like an EL-50448). 🎬 Watch: How to reset your TPMS sensors using a simple tool.
   Est. part cost: $0-$25 (for a basic TPMS tool)
3. Dead or Faulty TPMS Sensor 🟡 Medium Probability → Shop Tire Pressure Monitoring System (TPMS) Sensor The batteries inside TPMS sensors have a finite lifespan, typically 5-10 years. A 2007-2014 Escalade is at an age where original sensor batteries are likely failing, preventing them from transmitting their signal during the relearn process.
   How to confirm: During the relearn procedure, if the horn fails to chirp for a specific wheel, that sensor is likely dead. A professional TPMS tool can also be used to check if the sensor is transmitting a signal with sufficient battery strength.
   Typical fix: Replace the failed TPMS sensor and perform the relearn procedure. It's often recommended to replace all four sensors at once 🎬 See this walkthrough on how to replace a faulty TPMS sensor. if they are original, as the others are likely to fail soon.
   Est. part cost: $40-$80 per sensor

Rare But Worth Checking

• Faulty Remote Control Door Lock Receiver (RCDLR): → Shop Keyless Entry Receiver If RFI has been completely ruled out and new TPMS sensors still cannot be learned (or are 'forgotten' after a key cycle), the RCDLR module itself may have failed. This is rare but possible. The module is located behind the driver's side rear D-pillar trim panel. Replacement requires programming with a dealer-level scan tool. The OEM part number has been superseded multiple times, with 20803735 being a common replacement.
• Cleared RCDLR Memory: In some forum-documented cases, the RCDLR module doesn't fail but its memory becomes corrupted or cleared, especially after a dead battery event. A user on TahoeYukonForums reported solving a persistent relearn issue by using a bi-directional scanner to rewrite the tire type (e.g., P-Metric) and pressure settings to the module, after which the sensors were retained correctly.
• Poor RCDLR Ground Connection: The RCDLR module is grounded at a specific point known as G302, which is located under the trim on the *passenger side* front door sill. Corrosion or a loose connection at this ground stud can cause the RCDLR to malfunction intermittently or completely, leading to TPMS, key fob, and security issues that mimic a failed module.
• Broken Power Wire to RCDLR: The RCDLR receives 12V power via a Red/White wire from the 'DSM' fuse. In rare cases, particularly on vehicles exposed to the elements, this wire can corrode and break within the harness, cutting power to the module. This would result in a total loss of TPMS and key fob function. Diagnosis requires checking for 12V at the RCDLR connector.

Diagnosis Steps

1. Check for other codes. If security codes like B3055 or B3935 are present with stalling symptoms, proceed to the next step immediately.
2. CRITICAL: Unplug every aftermarket device from the vehicle's 12V and USB ports (phone chargers, dash cams, etc.). Remove any extra fobs or access cards from your keychain. This is the most common fix.
3. Clear all DTCs with a scan tool.
4. Attempt to start and drive the vehicle to see if the stalling issue is resolved. If it is, the problem was RFI. Reintroduce devices one by one to find the culprit.
5. If the C0775 code or 'Service Tire Monitor' message remains, perform the TPMS relearn procedure. Turn the key to 'ON' (engine off), then press and hold the lock and unlock buttons 🎬 Watch: A quick demonstration of the manual TPMS reset procedure. on the key fob until the horn chirps twice.
6. The vehicle will indicate the first tire to learn (usually driver's front) by illuminating the corresponding corner light. Starting there, use a TPMS tool to activate the sensor (or let air out of the tire) until the horn chirps once. Proceed in the sequence indicated by the vehicle's lights (usually LF, RF, RR, LR).
7. If the horn fails to chirp at any wheel, that wheel's TPMS sensor is likely faulty and needs replacement.
8. If the relearn is successful but the sensors are forgotten on the next key cycle, or if key fobs are also inoperative, advanced electrical diagnosis is needed. Check for 12V power at the RCDLR connector on the Red/White wire and check for a solid ground on the Black/White wire.
9. Inspect the RCDLR ground point G302, located on the passenger side front door sill, for corrosion or looseness.
10. If all else fails, seek professional diagnosis for the RCDLR module and its wiring harness. The module is located behind the driver's side rear D-pillar trim.

Parts You'll Likely Need

• Tire Pressure Monitoring System (TPMS) Sensor (OEM #13598771) — The original sensor's battery may have died, preventing the relearn procedure from completing. This is the most common part to fail that would lead to an unsuccessful relearn. This part number fits the 2007-2014 Escalade and its platform mates.
  Trusted brands: ACDelco, Schrader, Bosch, Denso, Dorman
  OEM price range: $60-$90
  Aftermarket price range: $25-$60
• Remote Control Door Lock Receiver (RCDLR) (OEM #20803735) — In rare cases where RFI is ruled out and sensors are good, the receiver module itself can fail, preventing TPMS and key fob communication. This part number supersedes several previous versions for this platform. Requires dealer programming after installation.
  Trusted brands: ACDelco, GM Genuine Parts
  OEM price range: $70-$120
  Aftermarket price range: N/A

Related Codes That Often Appear With This One

• B3055 — This security code for 'No Transponder' is often triggered by the same RFI that causes C0775, as they share a receiver module (RCDLR).
• B3935 — Indicates a 'Transponder Authentication Error' and is also cited in TSB PIC5650M as being caused by RFI along with the TPMS codes.
• C0750, C0755, C0760, C0765 — These are the specific codes for the Left Front, Right Front, Left Rear, and Right Rear TPMS sensors, respectively. They often appear with C0775 when RFI disrupts the entire system, when a relearn is attempted with one or more dead sensors, or when there is a fault with the shared RCDLR antenna system.

Technical Service Bulletins (TSBs) & Recalls

• PIC5650M: Addresses an intermittent no crank, no start, or start/stall with security light on

Platform-Specific Known Issues

• TSB PIC5650 (revisions C, F, J, K, M) is the definitive document for this platform, directly linking C0775 to stalling and security lights due to Radio Frequency Interference from aftermarket accessories. This is the most significant known issue for this platform related to C0775.

Mechanic-Grade Diagnostic Values

• RCDLR Power Supply Voltage — expected: 12V+ (Battery Voltage). Failure: 0V or significantly low voltage indicates a blown 'DSM' fuse or a break in the power wire.
• RCDLR Ground Circuit Resistance — expected: Less than 1 ohm. Failure: High or infinite resistance indicates a poor ground at G302 or a break in the ground wire.

Hidden / Shadow Codes Worth Checking

• C0775 (on first key cycle): A brand new, unprogrammed RCDLR module will set DTC C0775 by default upon its initial power-up in the vehicle. The code will clear after a successful TPMS learn procedure is completed. (see via Standard scan tool, but the context (a new module) is critical for interpretation.)

Scan Tool Commands That Help

• GM Tech2 / GDS2: RCDLR Setup / Module Setup — This function must be performed after installing a new RCDLR to integrate it with the vehicle's other modules before other learning procedures can be done.
• GM Tech2 / GDS2: Theft Deterrent System Learn — Required after RCDLR replacement to re-link the vehicle's anti-theft system and keys to the new module, resolving no-start issues.
• GM Tech2 / GDS2: Tire Pressure Indicator Sensor Learn — This is the main function to make the vehicle learn the unique IDs of the TPMS sensors after replacement or tire rotation. It is required to clear code C0775.
• GM Tech2 / GDS2: Add/Replace Key Fobs — Used to program key fobs to a new or existing RCDLR. The typical path is 'Module Diagnostics' -> 'Remote Control Door Lock Receiver' -> 'Configure and Reset Functions'.

Wiring & Ground Locations

• RCDLR Module — Behind the driver's side (left) rear D-pillar interior trim panel in the cargo area.. This is the central processing module for both TPMS and key fob signals. All related wiring and the antenna connect here.
• G302 — Ground stud located on the *passenger side* front door sill, under the sill plate/trim.. This is the specific chassis ground point for the RCDLR. Corrosion or a loose connection here will cause the module to malfunction, creating TPMS and keyless entry faults that can be misdiagnosed as a failed RCDLR module.
• RCDLR Power (Pin 1) — The Red/White wire at the RCDLR module's main connector.. This wire supplies 12V+ power from the 10A 'DSM' fuse. A break in this wire or a blown fuse will completely disable the module, causing C0775 and a loss of key fob functions.
• RCDLR Antenna System — A coaxial cable runs from the RCDLR to an antenna amplifier module, which then connects to the antenna grid in the right rear quarter glass.. A disconnected coax cable at the RCDLR, amplifier, or glass will cause a loss of signal from the TPMS sensors and key fobs, mimicking a failed RCDLR. Symptoms vary based on the location of the disconnect.

Real Owner Repair Stories

• MHH Auto forum user 'TallersDiesel' (2009 Cadillac Escalade) — TPMS issues and key fobs not working.
  ❌ Tried (didn't work) Initial diagnosis pointed towards a faulty RCDLR module.
  ✅ What actually fixed it The user tested the RCDLR connector and found no 12V power on the Red/White wire. They supplied temporary 12V power from a different module, and all TPMS and key fob functions were restored. The final fix was to trace and repair the original broken power wire, which was suspected to have corroded from environmental exposure.

OEM Part Supersession History

• 15287331, 15782376, 15807816, 15857831, 15946938, 25771044, 25808837, 25852909, 25855007, 25896497, 92201608 → 20803735 — Standard part evolution for design, material, or technology updates by GM.
  Heads up: While 20803735 is the widely accepted replacement, at least one forum user warned against using unspecified 'upgraded' part numbers, suggesting sticking to the direct supersession path is safest. All replacements require programming.

Model Year Variations Within This Range

• 2007-2014: No significant variations in the RCDLR or TPMS system related to this code have been identified within the 2007-2014 (GMT900) generation. The system architecture is consistent across these model years.