C0755 on 2007-2014 Chevrolet Equinox: TPMS Sensor vs. RCDLR Module Fixes

What's Unique About the 2007-2014 Chevrolet EQUINOX

On this generation of Equinox and other GM vehicles, the TPMS sensors communicate with the Remote Control Door Lock Receiver (RCDLR), the same module that receives signals from your key fob. This module is a known failure point. A faulty RCDLR can cause both TPMS codes like C0755 and seemingly unrelated issues like poor key fob range, a "No Remote Detected" message, and even no-start conditions, a connection documented in GM Technical Service Bulletins. This dual-function design means a single module failure can present a confusing array of symptoms that might otherwise seem disconnected.

Diagnostic Flowchart

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

Generation note: This range covers two Equinox generations: the first (2007-2009) and the second (2010-2014). Both use a 315 MHz direct TPMS system. The primary cause of failure (TPMS sensor or RCDLR module) is common to both. The TPMS relearn procedure is slightly different; the 2007-2009 models can enter relearn mode via the key fob (pressing lock and unlock simultaneously 🎬 Watch: How to reset the TPMS light on 2005-2009 models), while 2010+ models typically use the Driver Information Center (DIC) controls.

Symptoms You May Notice

• Flashing, then solid TPMS warning light on the dashboard.
• "Service Tire Monitor System" message on the Driver Information Center (DIC).
• Key fob has very short range or works intermittently, requiring you to be very close to the vehicle.
• "No Remote Detected" message on the DIC.
• Vehicle fails to start (no crank/no start), often with the security light on.
• Inability to initiate the TPMS relearn procedure using the DIC or key fob method.

Most Likely Causes

1. Failed Right Front TPMS Sensor 🔴 High Probability → Shop Tire Pressure Monitoring System (TPMS) Sensor The internal, non-replaceable batteries in TPMS sensors have a finite lifespan of 5-10 years. Vehicles in this year range are at or beyond the typical life expectancy of the original sensors.
   How to confirm: If key fobs work perfectly from a normal distance, the sensor is the most likely cause. A professional can use a TPMS activation tool (like a J-46079 or Autel tool) to try and activate the sensor; if it fails to respond or shows a very weak signal, it is bad.
   Typical fix: Replace the TPMS sensor inside the right front tire. The tire must be dismounted from the wheel to access it. After installation, a TPMS relearn procedure must be performed.
   Est. part cost: $25-$75
2. Failed Remote Control Door Lock Receiver (RCDLR) 🔴 High Probability → Shop Keyless Entry Receiver This module is a documented weak point on many GM vehicles from this era. It handles multiple RF signals and is prone to internal failure, affecting both TPMS and keyless entry functions. TSB 16-NA-396 directly calls for its replacement when these symptoms occur together.
   How to confirm: This is the most likely cause if you are experiencing both the C0755 code and issues with key fob range or passive entry/start functions. Often, codes for other TPMS sensors (C0750, C0760, C0765) will be stored at the same time, even if they haven't triggered a light for those wheels yet.
   Typical fix: Replace the RCDLR module. On the first-generation Equinox, the module is located in the passenger side rear C-pillar area, between the small rear window and the passenger door. The new module MUST be programmed to the vehicle using a GM-specific scan tool and the Service Programming System (SPS).
   Est. part cost: $150-$250

Rare But Worth Checking

• Radio Frequency (RF) Interference: Aftermarket electronics like dash cams, phone chargers, or power inverters can sometimes emit RF noise that interferes with the RCDLR's ability to receive the sensor signal. GM TSB PIC5650M specifically advises checking for aftermarket devices plugged into the vehicle as a first step for these symptoms.
• Body Control Module (BCM) Issue: → Shop Body Control Module In very rare cases, the BCM itself can be the source of the problem. This should only be considered after both the TPMS sensor and RCDLR have been ruled out. Diagnosing a BCM requires a high-level scan tool and is expensive to replace.
• RCDLR Antenna/Coax Cable Issue: TSB 16-NA-061 points out that the antenna system for the RCDLR (including a coax cable and amplifier) can become disconnected or damaged, mimicking a failed RCDLR. A loose connection at the RCDLR, antenna amplifier, or the antenna itself (often in the rear glass) can cause poor reception for both TPMS and key fobs.

Diagnosis Steps

1. Check for other DTCs. Note if codes for other TPMS sensors (C0750, C0760, C0765) or body/security modules (B3055) are present. A full set of TPMS codes points strongly to the RCDLR.
2. Test the key fob range. Stand 20-30 feet from the vehicle and test the lock/unlock functions. If it works poorly or not at all, suspect the RCDLR.
3. Unplug all aftermarket accessories (phone chargers, dash cams, etc.) to eliminate RF interference and re-test.
4. If key fobs work correctly, the TPMS sensor is the primary suspect. Use a TPMS activation tool to test the right front sensor. If the tool cannot get a response, the sensor is bad.
5. If the sensor responds to the tool but the code persists, the problem is likely in the receiving module (RCDLR) or its wiring/antenna.
6. Inspect the RCDLR and its connector for any visible damage or corrosion. The location for the 1st Gen Equinox is in the passenger side rear C-pillar area.
7. Inspect the RCDLR antenna coax cable connections at the module and at the antenna amplifier per TSB 16-NA-061.
8. If the RCDLR is suspected, replacement and programming by a qualified shop is the final step.

Parts You'll Likely Need

• Tire Pressure Monitoring System (TPMS) Sensor (OEM #19331874) — This is the most common fix when there are no key fob issues. The sensor's internal battery dies over time.
  Trusted brands: ACDelco, Schrader, Standard Motor Products (SMP)
  OEM price range: $50-$90
  Aftermarket price range: $25-$60
• Remote Control Door Lock Receiver (RCDLR) (OEM #20803735 (supersedes 25852909, 25896497 for 2007-2009 models); 13595511 (for some 2010+ models, check VIN)) — This module is the likely cause if TPMS codes are accompanied by poor key fob range or no-start issues. It receives signals for both systems.
  Trusted brands: ACDelco, GM Genuine Parts
  OEM price range: $180-$250
  Aftermarket price range: $150-$200

Related Codes That Often Appear With This One

• C0750 — This code is for the Left Front TPMS sensor. When the RCDLR module fails, it often stops receiving signals from multiple or all sensors at once.
• C0760 — This code is for the Left Rear TPMS sensor. Its presence with C0755 strongly points to a central receiver (RCDLR) failure rather than individual sensor failures.
• C0765 — This code is for the Right Rear TPMS sensor. Seeing all four sensor codes together almost guarantees the RCDLR is the culprit.
• B3055 — This code relates to the key transponder/vehicle immobilizer system. A failing RCDLR can disrupt communication with the key, triggering this code and a no-start condition.

Technical Service Bulletins (TSBs) & Recalls

• PIC5650M: Mentions C0755 as one of several codes that can be present during a no crank, no start, or start/stall condition with the security light on. Also points to RF interference from aftermarket devices as a possible cause.
• 16-NA-396: Directly addresses intermittent key fob operation and TPMS codes (including C0755, C0750, C0760, C0765), identifying the cause as an internal issue with the Remote Control Door Lock Receiver and recommending its replacement.
• 16-NA-061: Details how a disconnected or faulty RCDLR antenna or coax cable can produce the exact same symptoms as a failed RCDLR module, and should be checked first.
• 08-03-16-001B: Discusses how a

Platform-Specific Known Issues

• Failure of the Remote Control Door Lock Receiver (RCDLR) is a well-documented issue on this platform, leading to a combination of TPMS and keyless entry/start problems.
• The location of the RCDLR on the 1st generation (2007-2009) Equinox is frequently asked about in forums, with owners confirming it is behind the passenger side C-pillar trim.

Mechanic-Grade Diagnostic Values

• TPMS Sensor Battery Status — expected: OK. Failure: A 'Low Battery' status indicated on a scan tool for a specific sensor.
• RCDLR Module Power Supply — expected: 12-14 Volts. Failure: No or low voltage at the RCDLR power input pin, which can be caused by broken wiring in the door jamb area.

Hidden / Shadow Codes Worth Checking

• C0755 with symptom byte 03: Indicates 'Right Front Tire Pressure Sensor Low Voltage'. This points more specifically to an electrical failure within the sensor or its immediate circuit. (see via A professional scan tool like GM GDS2 or a high-end aftermarket scanner capable of reading manufacturer-specific symptom bytes.)
• C0755 with symptom byte 29: Indicates 'Right Front Tire Pressure Sensor Too Few Pulses'. This suggests the sensor is transmitting intermittently or not at all, which could be a weak battery or internal failure. (see via A professional scan tool like GM GDS2 or a high-end aftermarket scanner capable of reading manufacturer-specific symptom bytes.)

Scan Tool Commands That Help

• GDS2 (GM Global Diagnostic System 2): Module Diagnostics > RCDLR > Data Display — Use this function to view live data from the RCDLR, including the status of each TPMS sensor (pressure, battery status, ID) and key fob inputs. This helps determine if the module is receiving any signals at all.
• GDS2 (GM Global Diagnostic System 2): Service Programming System (SPS) — This function is required after replacing the RCDLR. It programs the new module to the vehicle's BCM and relearns the existing key fobs and TPMS sensor IDs.
• GDS2 (GM Global Diagnostic System 2): Data Bus Diagnostic Tool — This specialized tool within GDS2 can monitor the serial data circuits to see which modules are communicating or staying 'awake', helping to diagnose complex communication issues or battery drains related to a faulty module like the RCDLR.

Wiring & Ground Locations

• RCDLR Location (2007-2009) — Behind the passenger side rear C-pillar trim, between the small quarter window and the rear passenger door.. This is the physical location of the receiver module. A disconnected antenna or power connector at this location is a common cause of failure.
• RCDLR Location (2010-2014) — Typically located behind the trim in the rear cargo area, on the driver's side D-pillar.. The location changed between generations. Knowing the correct location is critical for inspection and replacement.
• G103 — Located on the cowl at the left rear of the engine compartment, near the brake booster.. This ground point serves the Remote Door Lock Receiver and the Body Control Module (BCM). A poor connection here can cause a wide range of electrical issues, including RCDLR and BCM communication problems.
• RCDLR Antenna Coax Cable — Runs from the RCDLR module to an antenna amplifier, and then to the antenna which is often integrated into the right rear glass.. A disconnected coax cable at the RCDLR, the amplifier, or the glass antenna will cause poor or no reception for both TPMS and key fobs, mimicking a failed RCDLR module as described in TSB 16-NA-061.

Real Owner Repair Stories

• Reddit user in r/Chevrolet (2008 Equinox) — Key fob range was very low (had to be right against the car), and TPMS sensors would not report.
  ❌ Tried (didn't work) Searching for the RCDLR module on the left side of the vehicle.
  ✅ What actually fixed it The user located the RCDLR on the right C-pillar and found its antenna was unplugged. Plugging the antenna back in immediately fixed the key fob range and allowed the TPMS sensors to be programmed successfully.
• Chevy Equinox Forum user 'cavell' (2007 Equinox) — Vehicle would not enter the TPMS relearn mode via the DIC. Keyless entry was also not working.
  ❌ Tried (didn't work) Attempting to use the DIC to start the relearn procedure., Using a scan tool to attempt the relearn, which also failed.
  ✅ What actually fixed it The owner replaced the Remote Control Door Lock Receiver (RCDLR) module. After replacement, the TPMS and keyless entry systems began working correctly, and the relearn procedure could be initiated from the dash as expected.

OEM Part Supersession History

• 25852909, 25896497, 15287331, 15782376, 15807816, 15857831, 15946938, 25771044, 25808837, 25855007, 92201608 → 20803735 — Part consolidation and design updates by GM.
  Heads up: Part 20803735 is the current service replacement for a wide range of GM vehicles from this era, including the 1st Gen Equinox. Always verify by VIN, but this part number covers most applications.

Model Year Variations Within This Range

• 2007-2009 vs 2010-2014: The physical location of the RCDLR module changed between the first generation (passenger side C-pillar) and the second generation (typically driver's side rear cargo area/D-pillar).