TSB: CADILLAC ATS, ATS-V, CORVETTE (2013–2016)

Bulletin PI1489A — December 1, 2015

Bulletin Details

Bulletin IDPI1489A
ManufacturerCADILLAC
ModelsATS, ATS-V, CORVETTE
Model Years2013–2016
Date IssuedDecember 1, 2015
Date Added to NHTSASeptember 7, 2021
ComponentENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
Vehicles Affected35 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

Malfunction Indicator Lamp (MIL) Illuminated, Intermittently Unable to Shift into Reverse, DTC P0502 Set

Affected Vehicles

MakeModelYearComponent
CADILLAC ATS 2016 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS 2016 102000 POWER TRAIN:MANUAL TRANSMISSION
CADILLAC ATS 2016 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS 2016 102000 POWER TRAIN:MANUAL TRANSMISSION
CADILLAC ATS 2016 280000 BACK OVER PREVENTION
CADILLAC ATS-V 2016 102000 POWER TRAIN:MANUAL TRANSMISSION
CADILLAC ATS-V 2016 102000 POWER TRAIN:MANUAL TRANSMISSION
CADILLAC ATS-V 2016 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS-V 2016 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS-V 2016 280000 BACK OVER PREVENTION
CADILLAC ATS 2015 102000 POWER TRAIN:MANUAL TRANSMISSION
CADILLAC ATS 2015 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS 2015 280000 BACK OVER PREVENTION
CADILLAC ATS 2015 102000 POWER TRAIN:MANUAL TRANSMISSION
CADILLAC ATS 2015 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CHEVROLET CORVETTE 2015 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CHEVROLET CORVETTE 2015 280000 BACK OVER PREVENTION
CHEVROLET CORVETTE 2015 102000 POWER TRAIN:MANUAL TRANSMISSION
CHEVROLET CORVETTE 2015 102000 POWER TRAIN:MANUAL TRANSMISSION
CHEVROLET CORVETTE 2015 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS 2014 102000 POWER TRAIN:MANUAL TRANSMISSION
CADILLAC ATS 2014 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS 2014 102000 POWER TRAIN:MANUAL TRANSMISSION
CADILLAC ATS 2014 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS 2014 280000 BACK OVER PREVENTION
CHEVROLET CORVETTE 2014 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CHEVROLET CORVETTE 2014 102000 POWER TRAIN:MANUAL TRANSMISSION
CHEVROLET CORVETTE 2014 102000 POWER TRAIN:MANUAL TRANSMISSION
CHEVROLET CORVETTE 2014 280000 BACK OVER PREVENTION
CHEVROLET CORVETTE 2014 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS 2013 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS 2013 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
CADILLAC ATS 2013 102000 POWER TRAIN:MANUAL TRANSMISSION
CADILLAC ATS 2013 280000 BACK OVER PREVENTION
CADILLAC ATS 2013 102000 POWER TRAIN:MANUAL TRANSMISSION

Related CADILLAC Recalls

CampaignModelYearComponentSummary
ESCALADE 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
OPTIQ 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
CT5 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
ESCALADE IQ 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
LYRIQ 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CADILLAC dealer. Bring this bulletin ID (PI1489A) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.