C0750 on 2015-2022 GMC Yukon: TPMS Fault Causes and Fixes

What's Unique About the 2015-2022 Gmc YUKON

On this generation of GMC Yukon and its platform mates (Chevy Tahoe/Suburban, Cadillac Escalade), the Tire Pressure Monitoring System (TPMS) and the keyless entry system are handled by the same module: the Remote Control Door Lock Receiver (RCDLR). GM has issued multiple Technical Service Bulletins (TSBs) advising that TPMS codes, including C0750, are frequently caused by problems with the RCDLR's antenna system or the module itself, rather than the tire sensor. A loose coaxial antenna cable, located behind the right rear quarter interior trim panel, is a common culprit, leading owners to mistakenly replace a perfectly good TPMS sensor.

Diagnostic Flowchart

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

Generation note: This range covers the fourth generation (2015-2020) and the start of the fifth generation (2021-2022) Yukon. The known issues with the RCDLR and its antenna are well-documented for the 2015-2018 models in TSBs. The issue is also prevalent on platform mates like the Tahoe, Suburban, and Escalade from the same era. While the technology is similar, specific part numbers or locations may differ slightly for the 2021-2022 models. The 2021+ models, built on the new 'Global B' electrical architecture, may have different TPMS sensor requirements and relearn procedures, with some owners reporting issues with aftermarket sensors.

Symptoms You May Notice

• "Service Tire Monitor System" message on the Driver Information Center (DIC).
• TPMS warning light flashing for about a minute, then staying on solid.
• The pressure reading for the left front tire shows dashes (--) on the DIC.
• Poor range or intermittent operation of the key fob 🎬 See how a loose antenna causes TPMS and remote issues. (remote lock/unlock/start).
• "No Remote Detected" message when trying to start the vehicle (less common, but possible).

Most Likely Causes

1. Poor or Disconnected RCDLR Antenna Coaxial Cable 🔴 High Probability → Shop Antenna As documented in TSB #16-NA-061 and PIT5446A, the connections for the RCDLR antenna system can become loose. This system, located in the right rear quarter panel area, is responsible for receiving signals from both the TPMS sensors and key fobs. The farther the sensor is from the receiver (the left front is the farthest), the more likely it is to lose signal from a poor antenna connection.
   How to confirm: Inspect the three main connection points of the RCDLR antenna system: the coax cable connection at the RCDLR module, the coax connection at the antenna amplifier module, and the amplifier's connection to the antenna embedded in the right rear quarter glass. Access requires removing the right rear interior trim panels.
   Typical fix: Securely reconnect any loose connectors. If a connector or the cable is damaged, it will need to be repaired or replaced. In some cases, the antenna contacts on the glass itself can detach and may need to be re-soldered.
   Est. part cost: $0-$100
2. Failed Left Front TPMS Sensor 🟡 Medium Probability → Shop Tire Pressure Monitoring System (TPMS) Sensor TPMS sensors are powered by a non-rechargeable internal battery that has a finite lifespan, typically 7-10 years. Physical damage from tire service or road hazards can also cause failure. Given the age of the 2015+ models, battery failure is becoming increasingly common.
   How to confirm: After confirming the RCDLR antenna system is intact, use a specialized TPMS tool to check the battery status and signal output of the left front sensor. If the tool cannot activate the sensor or it shows a low battery, the sensor has failed.
   Typical fix: Replace the left front TPMS sensor and perform the TPMS relearn procedure. 🎬 Watch: How to perform a TPMS relearn on your Yukon. It is often recommended to replace all four sensors if they are original and near the end of their service life.
   Est. part cost: $30-$80
3. Faulty Remote Control Door Lock Receiver (RCDLR) Module ⚪ Low Probability → Shop Keyless Entry Receiver TSB #16-NA-396 indicates that internal faults within the RCDLR module can cause this code, often accompanied by key fob detection issues like "No Remote Detected". Sometimes the module can lose its memory and require reprogramming or replacement.
   How to confirm: This is typically a diagnosis of exclusion. If the antenna system is secure and the TPMS sensor is confirmed to be good, but the code persists, the RCDLR module itself is the likely culprit. A dealer-level scan tool may be needed to confirm communication issues or internal faults.
   Typical fix: Replace the RCDLR module. This part requires programming to the vehicle after installation.
   Est. part cost: $70-$150

Rare But Worth Checking

• Radio Frequency (RF) Interference: Aftermarket electronic devices like dash cams, phone chargers, or CB radios can sometimes generate RF interference that blocks the RCDLR from receiving the TPMS sensor signal. Try unplugging all aftermarket electronics to see if the problem disappears.
• Corroded Ground at G103: While not a direct cause for C0750 alone, a loose or corroded G103 ground (located on the front of the right cylinder head on some models) can cause various electrical issues, including remote start and anti-theft problems that are related to the RCDLR's functions. If other electrical gremlins are present, this ground should be inspected.

Diagnosis Steps

1. Read the codes with an OBD-II scanner capable of reading BCM/Chassis codes.
2. Note any other TPMS (C07xx) or key-related (Bxxxx) codes.
3. Check for symptoms beyond the TPMS light, such as poor key fob range or passive entry issues.
4. Following TSB #16-NA-061, inspect the RCDLR antenna system. Locate the RCDLR and its antenna amplifier in the right rear of the vehicle, typically behind the interior trim panels near the D-pillar and quarter glass. Check that the coaxial cable is securely connected at both the module and the amplifier.
5. If connections are secure, use a TPMS diagnostic tool (like the EL-50448 for GM) to attempt to read the left front sensor's data (ID, pressure, temperature, battery status).
6. If the tool cannot get a reading or shows a 'LOW BATT' status, the sensor is likely bad and needs replacement.
7. If the sensor reads fine with the tool but the vehicle won't recognize it (and the antenna is secure), attempt a TPMS relearn procedure using the DIC menu.
8. If the relearn fails for the left front sensor, or if it forgets the sensor after a key cycle, the fault may lie with the RCDLR module itself or its programming. A bi-directional scanner may be needed to check or rewrite the RCDLR configuration.
9. Replace the failed component (TPMS sensor or RCDLR module). Note that a new RCDLR requires programming to the vehicle.

Parts You'll Likely Need

• Tire Pressure Monitoring System (TPMS) Sensor (OEM #23445327) — The sensor's internal battery may have died (lifespan is typically 7-10 years), or the sensor may have failed. This is a common fix if the RCDLR antenna system is confirmed to be working correctly.
  Trusted brands: ACDelco (OEM), Schrader
  OEM price range: $50-$80
  Aftermarket price range: $30-$50
• Remote Control Door Lock Receiver (RCDLR) (OEM #13595511 (superseded by 13540045)) — The module itself can fail internally, preventing it from receiving signals from the TPMS sensors and/or key fobs, as noted in TSB #16-NA-396. This part requires programming. The original part number 13595511 has been replaced by 13540045.
  Trusted brands: ACDelco (OEM)
  OEM price range: $70-$150
  Aftermarket price range: N/A

Related Codes That Often Appear With This One

• C0755, C0760, C0765 — These are the codes for the other three tire pressure sensors (RF, LR, RR). If multiple codes are present, it points even more strongly to a central issue with the RCDLR or its antenna, rather than multiple sensors failing simultaneously.
• B3055, B3060, B3935 — These are key and security-related codes. Their presence alongside C0750 suggests a broader electrical issue, potentially related to the BCM or RCDLR as noted in TSB #PIC5650M.

Technical Service Bulletins (TSBs) & Recalls

• PIC5650M: Mentions C0750 in a list of codes related to no-start/stall conditions.
• PIT5446A: Advises checking the RCDLR antenna system for TPMS codes C0750, C0755, C0760, and/or C0765.
• 16-NA-061: Details diagnosis of the RCDLR antenna system (coax cable, amplifier) as a cause for TPMS codes and poor key fob range.
• 16-NA-396: Identifies internal RCDLR failure as a cause for TPMS and key fob issues.

Platform-Specific Known Issues

• TSB #16-NA-061 documents how a disconnected RCDLR antenna or coax cable can cause one or more TPMS sensor codes (C0750, C0755, C0760, C0765) and poor key fob range on 2015-2018 Yukon models. It details the three connection points to check in the right rear quarter panel.
• TSB #PIT5446A specifically advises checking the RCDLR antenna system before replacing any parts for these codes on 2015-2016 models.
• TSB #16-NA-396 points to internal failure of the RCDLR module as a cause for these TPMS codes, often accompanied by "No Remote Detected" messages.

Hidden / Shadow Codes Worth Checking

• C0750 08: Indicates an invalid signal from the left front TPMS sensor. The receiver is getting a signal, but the data is corrupt or not in the expected format. (see via A professional scan tool like the GM GDS2 or a high-end aftermarket scanner capable of reading manufacturer-specific symptom bytes.)
• C0750 29: Indicates 'Too Few Pulses' were received from the sensor. This points to an intermittent signal loss, which could be caused by a weak sensor battery, RF interference, or a poor RCDLR antenna connection. TSB 16-NA-396 specifically links this symptom byte to internal RCDLR failure. (see via A professional scan tool like the GM GDS2 or a high-end aftermarket scanner capable of reading manufacturer-specific symptom bytes.)
• C0750 03: Indicates 'Voltage Below Threshold'. This is a strong indicator that the internal battery of the TPMS sensor is failing. (see via A professional scan tool like the 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 to view live data from the RCDLR, including the reported battery status of each TPMS sensor ('OK' or 'Low'). This can confirm a dead sensor battery without needing a separate TPMS tool.
• GDS2 (GM Global Diagnostic System 2): TPMS Learn Mode Enable — This command forces the vehicle into the TPMS relearn mode from the scan tool, which can be an alternative to using the DIC menu or key fob method, and is often required after RCDLR replacement.
• GDS2 (GM Global Diagnostic System 2): Module Setup > RCDLR > Programming — This function is required after replacing the RCDLR module. The new module must be programmed to the vehicle's VIN and configured for the specific options on the vehicle.

Wiring & Ground Locations

• G304 — At the base of the right 'B' pillar, under the interior trim.. This is a primary ground point for the body harness in that area. While not exclusively for the RCDLR, a poor connection at G304 can cause a variety of intermittent electrical issues for modules located in the right side of the cabin.
• K99 RCDLR — In the right rear of the vehicle, behind the quarter panel interior trim, near the D-pillar.. This is the physical location of the Remote Control Door Lock Receiver module that processes the TPMS signals. Access is required to check the coaxial antenna connection directly at the module.
• RCDLR Antenna Amplifier — Mounted near the RCDLR module, with a coaxial cable connecting it to the antenna grid in the right rear quarter glass.. This amplifier boosts the signal from the TPMS sensors. A loose connection at the amplifier is a common failure point identified in TSB 16-NA-061.
• RCDLR Connector X3 — The main electrical connector at the RCDLR module.. Checking for power, ground, and data line integrity at this connector is a key step if the module is suspected to be faulty. Pin 1 is typically Battery Positive Voltage, Pin 8 is Ground, and Pin 13 is the LIN Bus for communication.

Real Owner Repair Stories

• Tahoe Yukon Forum user 'Joseph Garcia' (2015+ GM SUV (Yukon/Tahoe family)) — TPMS relearn process would not proceed past the left front wheel sensor.
  ❌ Tried (didn't work) Attempting the standard relearn procedure multiple times.
  ✅ What actually fixed it The final fix was replacing the right rear wheel sensor. The user noted that despite the relearn process failing at the front, and no scanner codes pointing to a specific sensor, the actual fault was with a different sensor entirely, which was preventing the whole system from completing the learn sequence.

OEM Part Supersession History

• 13595511 → 13540045 (also supersedes 13509518, 13523281) — Standard part revision and consolidation by the manufacturer.
  Heads up: While 13540045 is the correct service replacement, some forum users caution against using other 'upgraded' or different part numbers, advising to stick to the direct supersession path to avoid programming and compatibility issues.

Model Year Variations Within This Range

• 2021-2022: These models use GM's new Vehicle Intelligence Platform (VIP, or 'Global B') electrical architecture. This changes the TPMS system significantly. The sensors may operate on a different frequency (433MHz is common on Global B) and are often incompatible with older sensors or aftermarket sensors designed for the 2015-2020 models. Owners and even dealerships have reported difficulties getting non-OEM sensors to relearn on these newer trucks.