2010 Cadillac CTS Sedan AWD V6-3.0L Technical Service Bulletin # 10201 Date: 100630

2010 Cadillac CTS Sedan AWD V6-3.0L Technical Service Bulletin # 10201 Date: 100630

Campaign - Propshaft Bolts Incomplete Heat Treatment

SERVICE UPDATE

Bulletin No.: 10201

Date: June 30, 2010

2010 Cadillac CTS Sedan AWD V6-3.0L Page 250

Subject: 10201 - Service Update for Inventory and Customer Vehicles - Propshaft Bolts Incomplete Heat Treatment - Expires with Base Warranty

Models:

2010-2011 Cadillac CTS, STS, STS-V

This service update includes vehicles in dealer inventory and customer vehicles that return to the dealership for any reason. It will expire

at the end of the involved vehicle's New Vehicle Limited Warranty period.

Purpose

This bulletin provides a service procedure to replace the propshaft bolts on certain 2010 and 2011 model year Cadillac CTS, STS, and STS-V

vehicles. The bolts on these vehicles may have been partially heat treated and could cause noise and driveline vibration, and may allow the joint to

loosen. All-wheel drive vehicles will require the replacement of 3 bolts that attach the propshaft coupling to the rear-drive module (RDM);

rear-wheel drive vehicles will require the replacement of 3 bolts that attach the propshaft coupling to the RDM, and 3 bolts that attach the propshaft

coupling to the transmission.

This service procedure should be completed as soon as possible on involved vehicles currently in dealer inventory and customer vehicles

that return to the dealer for any type of service during the New Vehicle Limited Warranty coverage period.

Vehicles Involved

A list of involved vehicles currently in dealer inventory is available on the "Service Update Bulletin Information" link under the "Service" tab in

GM GlobalConnect (US), or attached to the GlobalConnect message (Canada), used to release this bulletin. Customer vehicles that return for

service, for any reason, and are still covered under the vehicle's base warranty, and are within the VIN breakpoints provided below, should be

checked for vehicle eligibility in the appropriate system listed below.

Important

Dealers are to confirm vehicle eligibility prior to beginning repairs by using the Investigate Vehicle History. Not all vehicles within the

above breakpoints may be involved.

Parts Information

Parts required to complete this service update are to be obtained from General Motors Customer Care and Aftersales (GMCC&A). Please refer to

your "involved vehicles listing" before ordering parts. Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency

situation, parts should be ordered on a CSO = Customer Special Order.

Service Procedure

Note

Vehicles equipped with all-wheel drive have coupler-to-differential flange bolts at the rear drive module (RDM) attachment. Rear wheel drive

vehicles have coupler-to-differential flange bolts at both the front and rear ends of the propeller shaft. Removal of the exhaust system is required to

gain access to the front coupler-to-differential flange bolts on rear wheel drive vehicles. Refer to Exhaust System Replacement in SI. Rear wheel

drive vehicles will REQUIRE 6 new propeller shaft coupler-to-differential flange bolts. All-wheel drive vehicles REQUIRE 3 new propeller shaft

coupler-to-differential flange bolts. Exhaust removal is NOT required on all-wheel drive vehicles.

All Wheel Drive Vehicles

1. Move the shift lever to the "N" NEUTRAL position.

2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.

2010 Cadillac CTS Sedan AWD V6-3.0L Page 251

3. Locate the propeller shaft coupler/flange (2).

4. Remove the three propeller shaft coupler-to-differential flange bolts (1). Discard the bolts. Retain the washers and nuts (do NOT remove

the three propshaft-to-coupler bolts (3)).

5. Install three new coupler-to-differential flange bolts (1). Use the washers and nuts removed in Step 4. Tighten the bolts to 85 Nm(63 lb ft).

6. Lower the vehicle.

Rear Wheel Drive Vehicles

1. Move the shift lever to the "N" NEUTRAL position.

2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.

3. Remove the exhaust system. Refer to Exhaust System Replacement in SI.

4. Locate the propeller shaft coupler/flange (2) at the transmission and differential.

5. Remove the three propeller shaft coupler-to-differential flange bolts (1). Discard the bolts. Retain the washers and nuts (do NOT remove

the three propshaft-to-coupler bolts (3)).

6. Install three new coupler-to-differential flange bolts (1). Use the washers and nuts removed in Step 5. Tighten the bolts to 85 Nm(63 lb ft).

7. Remove the three propeller shaft coupler-to-transmission flange bolts. Discard the bolts. Retain the washers and nuts (do NOT remove the

three propshaft-to-coupler bolts (3)).

8. Install three new coupler-to-transmission flange bolts (1). Use the washers and nuts removed in Step 7. Tighten the bolts to 85 Nm (63 lb ft).

9. Lower the vehicle.

Claim Information

1. Submit a claim using the table below.

2. Courtesy Transportation - submit as Net Item under the repair labor code.