Cadillac SRX (2007-2016) HVAC Blower Motor Resistor & Control Module Guide
Is your Cadillac SRX fan stuck on one speed or not working at all? Here’s what you need to know before you buy a new part.
- Verify your SRX generation; 2007-2009 and 2010-2016 use different, non-interchangeable parts.
- The most common failure symptom is the fan only working on the 'high' setting.
- Consider replacing the blower motor at the same time as the resistor to prevent premature failure of the new part.
- This is a beginner-friendly DIY repair that can be completed in under an hour with basic tools.
Is This the Right Part for Your SRX?
Two Generations, Two Different Parts: The 2007-2016 Cadillac SRX spans two completely different vehicle generations. It is critical to buy the part that matches your year.
- 2007-2009 SRX (First Generation): Uses a traditional, multi-speed Blower Motor Resistor.
- 2010-2016 SRX (Second Generation): 🎬 Watch this step-by-step guide for replacing the 2010-2016 control module. Uses an electronic Blower Motor Control Module for variable fan speeds.
These parts are not interchangeable. Always verify the part fits your exact year before purchasing.
Symptoms of a Failing Blower Motor Resistor
When the blower motor resistor or module begins to fail, the signs are usually easy to spot. You will notice problems with the fan that pushes air through your cabin vents.
- Fan Only Works on High: This is the most common symptom. The 'high' setting bypasses the resistor, sending full power directly to the blower motor. If other speeds don't work, the resistor is the likely culprit.
- No Fan at Any Speed: While this could also be a dead blower motor, a completely failed resistor or module can also prevent the fan from working on any setting.
- Intermittent or Erratic Fan Speeds: The fan may work sometimes, cut in and out, or change speeds on its own.
- Fan Won't Turn Off (2010-2016 models): A failed electronic module can sometimes get stuck in the 'on' position, causing the fan to run continuously even after the vehicle is turned off.
Choosing the Right Aftermarket Part
When replacing the blower resistor or module, you have a choice between OEM (Original Equipment Manufacturer) and several aftermarket brands. For this specific part on the SRX, the decision can impact reliability.
Pro Tip: Mechanics often recommend replacing the blower motor and the resistor/module at the same time. A worn-out blower motor can draw too much electricity, causing a brand-new resistor to burn out and fail prematurely.
🎬 Watch a mechanic demonstrate how to replace the blower motor.Here’s a look at the available aftermarket brands:
- Standard Ignition (SMP): Generally considered a top-tier aftermarket brand with a reputation for producing reliable electronic components that meet or exceed OEM standards.
- Dorman: A widely available brand that often includes a new wiring harness, which is crucial if the old connector is melted or corroded. Quality can be very good, and they are a practical choice for many repairs.
- Four Seasons / Global Parts (GPD): These brands specialize in climate control components. While widely used, some professional and owner reviews are mixed, with some users questioning long-term durability compared to OEM.
- Holstein: Another aftermarket supplier offering direct-fit replacement parts for a variety of vehicle systems.
For the 2010-2016 SRX, some owners report that aftermarket electronic modules can fail quickly. If your priority is avoiding a repeat repair, a high-quality aftermarket brand like Standard Ignition or an OEM part may be worth the extra cost.
Cost of Replacing the Blower Motor Resistor
The replacement cost is relatively low, especially if you do the work yourself. The part is located under the passenger-side dashboard.
| Part / Service | Estimated Cost |
|---|---|
| New Aftermarket Resistor/Module | $57 - $99 |
| Shop Labor | $40 - $110 |
| Total Professional Replacement | $97 - $209 |
Frequently Asked Questions
Can I replace the blower motor resistor myself? 🎬 See how to replace a blower motor resistor in this video.
Yes, this is a common DIY repair. The resistor is located in the passenger footwell near the blower motor. It is held in by two screws and has one or two electrical connectors. The biggest challenge is often reaching the top screw, which may require a small wrench or a swivel socket. The job typically takes less than an hour.
Why did my new resistor fail after only a few months?
The most common reason for repeat failure is an old blower motor. As the motor ages, it can draw too much electrical current, which overheats and destroys the new resistor. If you are replacing the resistor, it is wise to inspect the blower motor and consider replacing both at the same time. Low-quality aftermarket parts can also have a shorter lifespan.
Are there any recalls for the SRX blower motor resistor?
No. As of late 2023, there are no specific NHTSA recalls for the HVAC blower motor resistor or control module on the 2007-2016 Cadillac SRX.
Is a resistor the same as a control module?
While they perform the same basic function of controlling fan speed, they work differently. A traditional resistor (found in the 2007-2009 SRX) uses coils of wire to create different levels of resistance for set fan speeds (Low, Medium, High). An electronic control module (in the 2010-2016 SRX) is a solid-state circuit that allows for fully variable fan speed adjustment.
Helpful Videos
Technical Specifications
OEM Part Numbers: 13598090 13501703 15141283 13598091 RU-799 19130001
For 2007-2009 models, it is a traditional wire-wound resistor. For 2010-2016 models, it is a solid-state electronic control module with a heat sink.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Cadillac SRX: