B1A36 on 2022-2025 Jeep Grand Cherokee (Limited, Overland, Summit, Summit Reserve) — Manufacturer-Specific Body/Security System Code
1 vehicles · 1 makes · $200-$1,400 repair
Most Reported On
B1A36 is an OBD-II diagnostic trouble code meaning “Manufacturer-Specific Body/Security System Code.” B1A36 is a manufacturer-specific body code that falls within the security-systems range and does not have a single standardized SAE definition. On vehicles that use this range (notably Chrysler/Stellantis and Mitsubishi) the B1A3x codes generally relate to immobilizer, key/transponder, or security-module communication faults. Without confirmation from make-specific service data the exact meaning cannot be stated. Have it read with a brand-specific scan tool to pin down the precise definition. This code is most commonly reported on 2022-2025 Jeep Grand Cherokee (Limited, Overland, Summit, Summit Reserve), with repair costs ranging from $200 to $1,400.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose B1A36, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does B1A36 mean?
B1A36 stands for "Manufacturer-Specific Body/Security System Code." B1A36 is a manufacturer-specific body code that falls within the security-systems range and does not have a single standardized SAE definition. On vehicles that use this range (notably Chrysler/Stellantis and Mitsubishi) the B1A3x codes generally relate to immobilizer, key/transponder, or security-module communication faults. Without confirmation from make-specific service data the exact meaning cannot be stated. Have it read with a brand-specific scan tool to pin down the precise definition.
What are the most common causes of B1A36?
The most common causes of B1A36 are: Key/transponder not recognized or not programmed, Immobilizer or security module communication fault, Faulty antenna ring or related wiring, Connector corrosion or open circuit in the security system, Module configuration or software issue, Faulty body control / immobilizer module. The specific cause varies by vehicle.
How much does it cost to fix B1A36?
Repair costs for B1A36 range from $200 to $1,400, depending on the vehicle and root cause.
Which vehicles are affected by B1A36?
Au7o has documented B1A36 across 1 vehicle models from 1 manufacturers: Jeep.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.