AC DELCO 35CHBD Hvac Control Module

( Brand: Ac Delco ), ( Manufacturer Part Number: 35CHBD ), ( Part Type: Hvac Control Module ), ( Trim: Premier, Awd, Lt, Rs, Fwd, L ), ( Compatible Make/model: Chevrolet Blazer ), ( Compatible Years: 2020 2021 20 21 ), ( Fitment Info: Hvac Control Module New; Labeled 86788378; A/c Front Auto/a. ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review AC DELCO Hvac Control Module Chevy fits BLAZER 2020–2021

The **AC Delco 35CHBD HVAC Control Module** is a high-performance, direct-fit replacement designed specifically for the **2020-2021 Chevrolet Blazer**, ensuring seamless integration with the vehicle s advanced climate control system. Engineered to meet or exceed OEM specifications, this module features a robust, durable construction with high-quality components that guarantee reliable operation and long-term durability. The **35CHBD** is a critical component of the Blazer s HVAC system, responsible for managing temperature, fan speed, air distribution, and defrost functions, providing drivers and passengers with precise climate control tailored to their preferences. Built with advanced circuitry and a user-friendly interface, this module ensures smooth operation of the climate controls, reducing the risk of malfunctions, error codes, or premature wear. Whether replacing a faulty original module or upgrading an existing system, this AC Delco part delivers exceptional performance, compatibility, and ease of installation, making it an ideal choice for both professional technicians and DIY enthusiasts. With its focus on quality and precision, the **35CHBD HVAC Control Module** helps maintain optimal comfort and functionality in your Blazer, ensuring a consistent and efficient climate control experience year-round.

### Pros and Cons of buying a AC Delco 35CHBD HVAC Control Module for a 2020-2021 Chevy Blazer

The AC Delco 35CHBD HVAC Control Module is a direct replacement part designed specifically for the 2020-2021 Chevrolet Blazer. Here are the key advantages:

1. **OEM Quality and Compatibility** AC Delco is a trusted brand under General Motors, meaning the module is engineered to meet the same standards as the original equipment manufacturer (OEM) part. It is designed to fit seamlessly into your Blazer s HVAC system without requiring modifications.

2. **Reliability and Durability** As an OEM or OEM-equivalent part, the 35CHBD module is built to last, reducing the likelihood of premature failure compared to aftermarket alternatives that may cut corners on materials or quality control.

3. **Warranty Coverage** AC Delco parts typically come with a manufacturer s warranty, often ranging from 12 to 60 months, depending on the retailer. This provides peace of mind in case the module fails shortly after installation.

4. **Ease of Installation** Since it is a direct replacement, the wiring and mounting points are identical to the original module. This makes installation straightforward for most DIYers, though some basic electrical knowledge may be helpful.

5. **Compatibility with Modern Systems** The 2020-2021 Blazer features advanced HVAC controls, including climate settings and possibly Bluetooth connectivity. The AC Delco module is designed to integrate smoothly with these features, ensuring all functions (e.g., temperature, fan speed, A/C, rear defrost) operate as intended.

6. **Cost-Effective Alternative to OEM** While not as cheap as generic aftermarket parts, the AC Delco module strikes a balance between quality and affordability compared to purchasing a brand-new OEM part from a dealership.

7. **Support for Vehicle Diagnostics** If your original module failed due to a fault code, the AC Delco replacement should work with your vehicle s diagnostic system (e.g., OBD-II scanner) without causing additional error messages, provided the underlying issue (e.g., wiring, sensor failure) is addressed.

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1. **Higher Price Than Aftermarket Alternatives** Compared to generic or no-name HVAC control modules, the AC Delco part will cost more. For budget-conscious buyers, this may be a significant consideration, especially if the module is the only failing component in the HVAC system.

2. **Limited Availability and Lead Times** Depending on the retailer or region, stock levels for AC Delco parts can vary. In some cases, you may need to order online and wait for shipping, which could delay repairs if you re in a hurry.

3. **Potential for Counterfeit Parts** While AC Delco is a reputable brand, there is a risk of purchasing counterfeit or refurbished parts from untrusted sellers. Always buy from authorized dealers, Amazon, or reputable auto parts retailers to avoid this issue.

4. **Underlying HVAC Issues May Persist** Replacing just the control module may not resolve all HVAC problems. If the issue stems from faulty wiring, a bad blower motor, or a malfunctioning temperature sensor, the symptoms could return unless the root cause is addressed.

5. **Installation Challenges for Non-Mechanics** While the module itself is straightforward to install, if the original module was damaged due to a short circuit or water intrusion, the wiring harness or connectors may need cleaning or replacement. This could complicate the process for those without electrical experience.

6. **No Significant Performance Upgrade** Unlike some aftermarket parts that offer enhanced features (e.g., larger capacitors, upgraded wiring), the AC Delco module is a direct replacement. It will not improve performance beyond the original specifications.

7. **Compatibility with Aftermarket Modifications** If you ve installed aftermarket HVAC upgrades (e.g., a high-output blower motor or custom wiring), the AC Delco module may not fully support these modifications, leading to compatibility issues.

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### **Conclusion**

The AC Delco 35CHBD HVAC Control Module is an excellent choice for owners of a 2020-2021 Chevy Blazer experiencing issues with their climate control system. Its OEM-quality construction, reliability, and compatibility make it a dependable replacement that minimizes the risk of further problems. The warranty and ease of installation further add to its appeal, especially for those who value quality and longevity.

However, the higher cost compared to aftermarket options and the potential for underlying HVAC issues not being resolved by the module alone are factors to weigh. If your primary concern is restoring the HVAC system to full functionality without unnecessary hassle, the AC Delco part is a strong recommendation. For those on a tight budget or dealing with complex wiring issues, it may be worth consulting a professional mechanic to diagnose the full scope of the problem before purchasing.

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### **Recommendation**

- You need a direct, high-quality replacement for your Blazer s HVAC system.

- You want a part that is reliable and supported by a warranty.

- You are comfortable with basic installation or have access to a mechanic for guidance.

- The issue is isolated to the control module (e.g., no other HVAC components are failing).

- You are working with a limited budget and can find a reputable aftermarket module with good reviews.

- The HVAC system has multiple failing components, and you d prefer a more comprehensive repair.

- You are unsure whether the problem is solely with the control module, and a diagnostic scan is needed first.

**Final Verdict:** For most Blazer owners, the AC Delco 35CHBD module is the best balance of quality, compatibility, and peace of mind. It is a safe and practical choice for restoring your vehicle s climate control system to proper working order.

Details:

GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle. Detailed Applications Years: Vehicle: Sub model: 2020 - 2021 Chevrolet Blazer Premier AWD, Blazer LT Blazers FWD, Blazer AWD. AC Delco HVAC Control Module fits Chevy Blazer 2020 - 2021 35CHBD: Brand: condition: New Notes: New; LABELED 86788378; A/C FRONT AUTO/AUX CONTROL CJ2, Features:Enables you to control climate settings. Some GM Genuine Parts may have formerly appeared as AcDelco Original Equipment OE.

GM regularly updates production and service part designs to integrate new materials technologies.

part #: 35chbd price

• $88.44

specifications chvyacheatercontrols:

• for models: Blazer
• for makes: Chevy
• for years: 2020-2021
• brand: Ac Delco
• mpn: 35chbd
• part type: Hvac Control Module
• trim: Premier, Awd, Lt, Rs, Fwd, L
• compatible make/model: Chevrolet Blazer
• compatible years: 2020 2021 20 21
• fitment info: Hvac Control Module New; Labeled 86788378; A/c Front Auto/a.
• manufacturer warranty: 12 Month Warranty
• attention: Read Full Description To Confirm Fitment
• cs-sku: 400

payments chvyAcheatercontrols:

• wallet: Google-pay
• other
• credit card: Diners-club

seller chvyAcheatercontrols:

• # reviews: 23639
• city: Greenbush, MassAchusetts
• rating: 99.1%

general chvyAcheatercontrols:

• condition: New
• Car Truck Parts Accessories > Air Conditioning Heating > HVAC Controls Control Units

returns chvyAcheatercontrols:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

shipping chvyAcheatercontrols:

• type: Fixed
• cost: $0.00
• service: Economy
• transit: 3-7 Days
• class: Economy

offer chvyAcheatercontrols:

• availability: In Stock
• quantity: 1
• started: March 31, 2026
• sold: 0
• options: Ship-to-home

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